博客提供了HBase官方文档链接，包含了HBase相关常量的详细说明，如UTF8编码、默认块大小、RPC版本等，还涉及集群模式、负载均衡、客户端快速失败模式等配置参数的常量信息。
参考官方：
https://hbase.apache.org/apidocs/constant-values.html
https://hbase.apache.org/apidocs/org/apache/hadoop/hbase/HConstants.html#MAX_ROW_LENGTH
包含每一种说明
HConstantsholds a bunch of HBase-related constants
| Fields | ||
| Modifier and Type | Field and Description |
|
| static int |
| |
| static int | Define for 'return-all-versions'. |
|
| static String |
| |
| static String | Current ioengine options in include: heap, offheap and file:PATH (where PATH is the path to the file that will host the file-based cache. |
|
| static String | When using bucket cache, this is a float that EITHER represents a percentage of total heap memory size to give to the cache (if < 1.0) OR, it is the capacity in megabytes of the cache. |
|
| static String | Maximum time to retry for a failed bulk load request |
|
| static String | Staging dir used by bulk load |
|
| static String | The name of the configuration parameter that specifies the number of bytes in a newly created checksum chunk. |
|
| static byte[] | The catalog family |
|
| static String | The catalog family as a string |
|
| static String | The name of the configuration parameter that specifies the name of an algorithm that is used to compute checksums for newly created blocks. |
|
| static String | Default cipher for encryption |
|
| static String | The ZK client port key in the ZK properties map. |
|
| static String | Cluster is in distributed mode or not |
|
| static String | Default value for cluster ID |
|
| static String | name of the file for unique cluster ID |
|
| static boolean | Cluster is fully-distributed |
|
| static boolean | Cluster is standalone or pseudo-distributed |
|
| static String | Parameter name for the maximum batch of KVs to be used in flushes and compactions |
|
| static int |
| |
| static String |
| |
| static String |
| |
| static String |
| |
| static Pattern |
| |
| static String |
| |
| static Pattern |
| |
| static String |
| |
| static Pattern | Pattern that matches a coprocessor specification. |
|
| static String | CRYPTO_ALTERNATE_KEY_ALGORITHM_CONF_KEY Configuration key for the name of the alternate cipher algorithm for the cluster, a string |
|
| static String | CRYPTO_CIPHERPROVIDER_CONF_KEY Configuration key for the crypto algorithm provider, a class name |
|
| static String | Configuration key for the algorithm used for creating jks key, a string |
|
| static String | Configuration key for the crypto key provider, a class name |
|
| static String | CRYPTO_KEYPROVIDER_PARAMETERS_KEY Configuration key for the crypto key provider parameters |
|
| static String | CRYPTO_MASTERKEY_ALTERNATE_NAME_CONF_KEY Configuration key for the name of the alternate master key for the cluster, a string |
|
| static String | CRYPTO_MASTERKEY_NAME_CONF_KEY Configuration key for the name of the master key for the cluster, a string |
|
| static String | Configuration key for the algorithm to use when encrypting the WAL, a string |
|
| static String | Configuration key for the name of the master WAL encryption key for the cluster, a string |
|
| static String | File permission umask to use when creating hbase data files |
|
| static int | Seconds in a day, hour and minute |
|
| static int | Default block size for an HFile. |
|
| static boolean | Default value for cluster distributed mode |
|
| static UUID | Default cluster ID, cannot be used to identify a cluster so a key with this value means it wasn't meant for replication. |
|
| static boolean |
| |
| static boolean |
| |
| static boolean |
| |
| static int | Default value for the balancer period |
|
| static int | DEFAULT_HBASE_CLIENT_MAX_PERREGION_TASKS Default value of HBASE_CLIENT_MAX_PERREGION_TASKS. |
|
| static int | DEFAULT_HBASE_CLIENT_MAX_PERSERVER_TASKS Default value of HBASE_CLIENT_MAX_PERSERVER_TASKS. |
|
| static int | DEFAULT_HBASE_CLIENT_MAX_TOTAL_TASKS Default value of HBASE_CLIENT_MAX_TOTAL_TASKS. |
|
| static int | DEFAULT_HBASE_CLIENT_OPERATION_TIMEOUT Default HBase client operation timeout, which is tantamount to a blocking call |
|
| static long | Default value of HBASE_CLIENT_PAUSE. |
|
| static int | DEFAULT_HBASE_CLIENT_PERSERVER_REQUESTS_THRESHOLD Default value of HBASE_CLIENT_PERSERVER_REQUESTS_THRESHOLD. |
|
| static int | DEFAULT_HBASE_CLIENT_RETRIES_NUMBER Default value of HBASE_CLIENT_RETRIES_NUMBER. |
|
| static int | DEFAULT_HBASE_CLIENT_SCANNER_CACHING Default value for HBASE_CLIENT_SCANNER_CACHING |
|
| static long | DEFAULT_HBASE_CLIENT_SCANNER_MAX_RESULT_SIZE Maximum number of bytes returned when calling a scanner's next method. |
|
| static int | DEFAULT_HBASE_CLIENT_SCANNER_TIMEOUT_PERIOD Default value of HBASE_CLIENT_SCANNER_TIMEOUT_PERIOD. |
|
| static double | DEFAULT_HBASE_MASTER_BALANCER_MAX_RIT_PERCENT Default value for the max percent of regions in transition |
|
| static int | Default value of HBASE_META_BLOCK_SIZE. |
|
| static int | DEFAULT_HBASE_META_SCANNER_CACHING Default value of HBASE_META_SCANNER_CACHING. |
|
| static int | Default value of HBASE_META_VERSIONS. |
|
| static int | DEFAULT_HBASE_RPC_SHORTOPERATION_TIMEOUT Default value of HBASE_RPC_SHORTOPERATION_TIMEOUT_KEY |
|
| static int | Default value of HBASE_RPC_TIMEOUT_KEY |
|
| static int | Default value of HBASE_SERVER_PAUSE. |
|
| static long | DEFAULT_HBASE_SERVER_SCANNER_MAX_RESULT_SIZE Maximum number of bytes returned when calling a scanner's next method. |
|
| static int |
| |
| static long |
| |
| static float |
| |
| static float |
| |
| static String | default host address |
|
| static boolean |
| |
| static int | DEFAULT_HREGION_MEMSTORE_BLOCK_MULTIPLIER Default value for hbase.hregion.memstore.block.multiplier |
|
| static int | DEFAULT_HSTORE_OPEN_AND_CLOSE_THREADS_MAX The default number for the max number of threads used for opening and closing stores or store files in parallel |
|
| static int |
| |
| static int | default port for master web api |
|
| static int | default port that the master listens on |
|
| static boolean | by default every master is a possible primary master unless the conf explicitly overrides it |
|
| static long | Default maximum file size |
|
| static int |
| |
| static double |
| |
| static int |
| |
| static int |
| |
| static int |
| |
| static int | default port for region server web api |
|
| static long |
| |
| static int | Default port region server listens on. |
|
| static String |
| |
| static boolean |
| |
| static String |
| |
| static String |
| |
| static int |
| |
| static String |
| |
| static int | Default value for thread wake frequency |
|
| static boolean |
| |
| static int | DEFAULT_VERSION_FILE_WRITE_ATTEMPTS Parameter name for how often we should try to write a version file, before failing |
|
| static String |
| |
| static int | Default value for ZooKeeper session timeout |
|
| static String |
| |
| static int | Default client port that the zookeeper listens on |
|
| static int | DEFAULT_ZOOKEPER_MAX_CLIENT_CNXNS Default limit on concurrent client-side zookeeper connections |
|
| static long | DEFAULT_ZOOKEPER_RECOVERABLE_WAITIME Default wait time for the recoverable zookeeper |
|
| static int | delimiter used between portions of a region name |
|
| static String |
| |
| static String | Conf key that enables unflushed WAL edits directly being replayed to region servers |
|
| static byte[] | An empty instance. |
|
| static ByteBuffer |
| |
| static byte[] | Last row in a table. |
|
| static byte[] | Used by scanners, etc when they want to start at the beginning of a region |
|
| static String | Config key for if the server should send backpressure and if the client should listen to that backpressure from the server |
|
| static String | Enable file permission modification from standard hbase |
|
| static String | Configuration name of WAL Compression |
|
| static String | Configuration key for enabling WAL encryption, a boolean |
|
| static TableName | The name of the ensemble table |
|
| static String | Current version of file system. |
|
| static int | Unlimited time-to-live. |
|
| static String | Config for the max balancing time |
|
| static String | Config for the balancer period |
|
| static String |
| |
| static String | HBASE_CANARY_WRITE_DATA_TTL_KEY Canary config keys |
|
| static String |
| |
| static String |
| |
| static String |
| |
| static String |
| |
| static String | If this parameter is set to true, then hbase will read data and then verify checksums. |
|
| static boolean |
| |
| static long |
| |
| static String |
| |
| static String |
| |
| static String | HBASE_CLIENT_FAST_FAIL_MODE_ENABLED Config for enabling/disabling the fast fail mode. |
|
| static String |
| |
| static long |
| |
| static String | Parameter name for unique identifier for this Configuration instance. |
|
| static String | Parameter name for HBase client IPC pool size |
|
| static String | Parameter name for HBase client IPC pool type |
|
| static String | HBASE_CLIENT_MAX_PERREGION_TASKS The maximum number of concurrent connections the client will maintain to a single Region. |
|
| static String | HBASE_CLIENT_MAX_PERSERVER_TASKS The maximum number of concurrent connections the client will maintain to a single RegionServer. |
|
| static String | The maximum number of concurrent connections the client will maintain. |
|
| static String | HBASE_CLIENT_META_OPERATION_TIMEOUT Parameter name for HBase client operation timeout. |
|
| static String | HBASE_CLIENT_META_REPLICA_SCAN_TIMEOUT Parameter name for HBase client meta replica scan call timeout. |
|
| static int | HBASE_CLIENT_META_REPLICA_SCAN_TIMEOUT_DEFAULT Default HBase client meta replica scan call timeout, 1 second |
|
| static String | HBASE_CLIENT_OPERATION_TIMEOUT Parameter name for HBase client operation timeout. |
|
| static String | Parameter name for client pause value, used mostly as value to wait before running a retry of a failed get, region lookup, etc. |
|
| static String | Parameter name for client pause value for special case such as call queue too big, etc. |
|
| static String | HBASE_CLIENT_PERSERVER_REQUESTS_THRESHOLD The maximum number of concurrent pending RPC requests for one server in process level. |
|
| static String | Parameter name for maximum retries, used as maximum for all retryable operations such as fetching of the root region from root region server, getting a cell's value, starting a row update, etc. |
|
| static String | Parameter name to set the default scanner caching for all clients. |
|
| static String | HBASE_CLIENT_SCANNER_MAX_RESULT_SIZE_KEY Parameter name for maximum number of bytes returned when calling a scanner's next method. |
|
| static String | HBASE_CLIENT_SCANNER_TIMEOUT_PERIOD The client scanner timeout period in milliseconds. |
|
| static float |
| |
| static String | HBASE_COORDINATED_STATE_MANAGER_CLASS Config for pluggable consensus provider |
|
| static String | Parameter name for HBase instance root directory |
|
| static String | HBASE_MASTER_BALANCER_MAX_RIT_PERCENT Config for the max percent of regions in transition |
|
| static String | HBASE_MASTER_LOADBALANCE_BYTABLE Config for balancing the cluster by table |
|
| static String | HBASE_MASTER_LOADBALANCER_CLASS Config for pluggable load balancers |
|
| static String |
| |
| static String | Config for pluggable region normalizer |
|
| static String | Parameter name for number of versions, kept by meta table. |
|
| static String | Parameter name for number of rows that will be fetched when calling next on a scanner if it is not served from memory. |
|
| static String | Parameter name for number of versions, kept by meta table. |
|
| Directories that are not HBase table directories |
| |
| Directories that are not HBase user table directories |
| |
| static String |
| |
| static String | HBASE_REGIONSERVER_LEASE_PERIOD_KEY Deprecated. This config option is deprecated. Will be removed at later releases after 0.96. |
|
| static String | timeout for each read RPC |
|
| static String | HBASE_RPC_SHORTOPERATION_TIMEOUT_KEY timeout for short operation RPC |
|
| static String | timeout for each RPC |
|
| static String | timeout for each write RPC |
|
| static String | Whether nonces are enabled; default is true. |
|
| static String | Parameter name for server pause value, used mostly as value to wait before running a retry of a failed operation. |
|
| static String | HBASE_SERVER_SCANNER_MAX_RESULT_SIZE_KEY Parameter name for maximum number of bytes returned when calling a scanner's next method. |
|
| static String | HBASE_SPLITLOG_MANAGER_TIMEOUT Configuration key for SplitLog manager timeout |
|
| static String | Temporary directory used for table creation and deletion |
|
| static String | Parameter name for what hbase client implementation to use. |
|
| static String | HBCK special code name used as server name when manipulating ZK nodes |
|
| static String | Used by HBCK to sideline backup data |
|
| static String |
| |
| static String | The maximum number of health check failures a server can encounter consecutively. |
|
| static String | Health script related settings. |
|
| static String |
| |
| static String |
| |
| static String |
| |
| static String | Directory under /hbase where archived hfiles are stored |
|
| static float |
| |
| static String | Configuration key for the size of the block cache |
|
| static byte[] | Just an array of bytes of the right size. |
|
| static int | The size of a version 2 HFile block header, minor version 1. |
|
| static int | HFILEBLOCK_HEADER_SIZE_NO_CHECKSUM The size data structures with minor version is 0 |
|
| static int |
| |
| static int |
| |
| static String | Used to construct the name of the compaction directory during compaction |
|
| static String |
| |
| static String | Used to construct the name of the log directory for a region server |
|
| static String | Conf key for the max file size after which we split the region |
|
| static String | HREGION_MEMSTORE_BLOCK_MULTIPLIER Block updates if memstore has hbase.hregion.memstore.block.multiplier times hbase.hregion.memstore.flush.size bytes. |
|
| static String | Conf key for the memstore size at which we flush the memstore |
|
| static String | Like the previous, but for old logs that are about to be deleted |
|
| static String | HSTORE_OPEN_AND_CLOSE_THREADS_MAX The max number of threads used for opening and closing stores or store files in parallel |
|
| static String |
| |
| static int | Used as a magic return value while optimized index key feature enabled(HBASE-7845) |
|
| static String | Parameter name for # days to keep MVCC values during a major compaction |
|
| static String |
| |
| static byte[] | Used by scanners and others when they're trying to detect the end of a table |
|
| static long | Timestamp to use when we want to refer to the latest cell. |
|
| static byte[] | LATEST_TIMESTAMP in bytes form |
|
| static String | The directory from which co-processor/custom filter jars can be loaded dynamically by the region servers. |
|
| static String |
| |
| static String | Host name of the local machine |
|
| static String |
| |
| static String | LOG_REPLAY_WAIT_REGION_TIMEOUT Conf key that specifies timeout value to wait for a region ready |
|
| static String | Parameter name for how often a region should should perform a major compaction |
|
| static String |
| |
| static String | Parameter name for what master implementation to use. |
|
| static String | Configuration key for master web API port |
|
| static String | Parameter name for port master listens on. |
|
| static String | Parameter name for the master type being backup (waits for primary to go inactive). |
|
| static int | Max length a row can have because of the limitation in TFile. |
|
| static int | Maximum value length, enforced on KeyValue construction |
|
| static byte[] | The lower-half merge region column qualifier |
|
| static byte[] | The upper-half merge region column qualifier |
|
| static String |
| |
| static int | delimiter used between portions of a region name |
|
| static byte[] | Deprecated. For upgrades of 0.94 to 0.96 |
|
| static short | The current version of the meta table. |
|
| static byte[] | The meta table version column qualifier. |
|
| static String |
| |
| static String | METRICS_RIT_STUCK_WARNING_THRESHOLD Region in Transition metrics threshold time |
|
| static String | Any artifacts left from migration can be moved here |
|
| static int | At least to keep MVCC values in hfiles for 5 days |
|
| static int |
| |
| static String |
| |
| static String |
| |
| static long |
| |
| static long | Value indicating the server name was saved with no sequence number. |
|
| static int | QOS attributes: these attributes are used to demarcate RPC call processing by different set of handlers. |
|
| static String |
| |
| static long | Deprecated. Should not be public since hbase-1.3.0. For internal use only. Move internal to Scanners flagged as special timestamp value never to be returned as timestamp on a Cell. |
|
| static int |
| |
| static String |
| |
| static String |
| |
| static String |
| |
| static String |
| |
| static String |
| |
| static String | Parameter name for what region server implementation to use. |
|
| static String |
| |
| static String | The max number of threads used for splitting storefiles in parallel during the region split process. |
|
| static byte[] | The regioninfo column qualifier |
|
| static String | The RegionInfo qualifier as a string |
|
| static String | A configuration key for regionserver info port |
|
| static String | A flag that enables automatic selection of regionserver info port |
|
| static String | The period (in milliseconds) between computing region server point in time metrics |
|
| static String | Parameter name for port region server listens on. |
|
| static int |
| |
| static byte[] | The replication barrier family |
|
| static String | REPLICATION_BARRIER_FAMILY_STR The replication barrier family as a string |
|
| static boolean |
| |
| static String |
| |
| static String | Replication cluster id of source cluster which uniquely identifies itself with peer cluster |
|
| static String | Configuration key for setting replication codec class name |
|
| static String | Directory where the source cluster file system client configuration are placed which is used by sink cluster to copy HFiles from source cluster file system |
|
| static byte[] | The replication meta family |
|
| static String | The replication meta family as a string |
|
| static byte[] | The replication position family |
|
| static String | REPLICATION_POSITION_FAMILY_STR The replication position family as a string |
|
| static int |
| |
| static int | Scope tag for globally scoped data. |
|
| static int | Scope tag for locally scoped data. |
|
| static int | Scope tag for serially scoped data This data will be replicated to all peers by the order of sequence id. |
|
| static long |
| |
| static String |
| |
| static String |
| |
| static String |
| |
| static int |
| |
| static String | REPLICATION_SOURCE_MAXTHREADS_KEY Maximum number of threads used by the replication source for shipping edits to the sinks |
|
| static String |
| |
| static int |
| |
| static String | REPLICATION_SOURCE_TOTAL_BUFFER_KEY Max total size of buffered entries in all replication peers. |
|
| static int[] | Retrying we multiply hbase.client.pause setting by what we have in this array until we run out of array items. |
|
| static String | Configuration key for setting RPC codec class name |
|
| static byte |
| |
| static byte[] | The first four bytes of Hadoop RPC connections |
|
| static byte[] | The open seqnum column qualifier |
|
| static String | The open seqnum column qualifier |
|
| static byte[] | The server column qualifier |
|
| static String | The server column qualifier |
|
| static byte[] |
| |
| static String | The serverName column qualifier. |
|
| static String | Name of the directory to store all snapshots. |
|
| static String |
| |
| static String |
| |
| static int | The delay when re-trying a socket operation in a loop (HBASE-4712) |
|
| static String | Used to construct the name of the splitlog directory for a region server |
|
| static byte[] | The lower-half split region column qualifier |
|
| static byte[] | The upper-half split region column qualifier |
|
| static byte[] | The startcode column qualifier |
|
| static String | The startcode column qualifier |
|
| static byte[] |
| |
| static String | The state column qualifier |
|
| static String | IP to use for the multicast status messages between the master and the clients. |
|
| static String | The address to use for binding the local socket for receiving multicast. |
|
| static String | The port to use for the multicast messages. |
|
| static String | Setting to activate, or not, the publication of the status by the master. |
|
| static boolean |
| |
| static int |
| |
| static byte[] | The catalog family |
|
| static String | The catalog family as a string |
|
| static long | Default max row size (1 Gb). |
|
| static String | Max size of single row for Get's or Scan's without in-row scanning flag set. |
|
| static byte[] | The serialized table state qualifier |
|
| static String | Config key for hbase temporary directory in hdfs |
|
| static String | Parameter name for how often threads should wake up |
|
| static String | Conf key for enabling meta replication |
|
| static Charset | When we encode strings, we always specify UTF8 encoding |
|
| static String | When we encode strings, we always specify UTF8 encoding |
|
| static String | name of version file |
|
| static String | Parameter name for how often we should try to write a version file, before failing |
|
| static String |
| |
| static String | Configuration name of WAL storage policy Valid values are: HOT, COLD, WARM, ALL_SSD, ONE_SSD, LAZY_PERSIST See http://hadoop.apache.org/docs/r2.7.3/hadoop-project-dist/hadoop-hdfs/ArchivalStorage.html |
|
| static int | Seconds in a week |
|
| static Long | long constant for zero |
|
| static String |
| |
| static String | Common prefix of ZooKeeper configuration properties |
|
| static int |
| |
| static String |
| |
| static String | Configuration keys for programmatic JAAS configuration for secured ZK interaction |
|
| static String |
| |
| static String |
| |
| static String | Configuration key for ZooKeeper session timeout |
|
| static String | Parameter name for the client port that the zookeeper listens on |
|
| static String | Parameter name for the ZK data directory |
|
| static String | Parameter name for the limit on concurrent client-side zookeeper connections |
|
| static String | Name of ZooKeeper quorum configuration parameter. |
|
| static String | ZOOKEEPER_RECOVERABLE_WAITTIME Parameter name for the wait time for the recoverable zookeeper |
|
| static String | Parameter name for the ZK tick time |
|
| static String | Parameter name for the root dir in ZK for this cluster |
|
· Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
·
public static final StringUTF8_ENCODING
When weencode strings, we always specify UTF8 encoding
See Also:
public static final CharsetUTF8_CHARSET
When weencode strings, we always specify UTF8 encoding
public static final int DEFAULT_BLOCKSIZE
Default blocksize for an HFile.
See Also:
public static final int INDEX_KEY_MAGIC
Used as amagic return value while optimized index key feature enabled(HBASE-7845)
See Also:
public static final StringRECOVERED_EDITS_DIR
See Also:
public static final byte[] RPC_HEADER
The firstfour bytes of Hadoop RPC connections
public static final byte RPC_CURRENT_VERSION
See Also:
· HFILEBLOCK_HEADER_SIZE_NO_CHECKSUM
public static final int HFILEBLOCK_HEADER_SIZE_NO_CHECKSUM
The size datastructures with minor version is 0
See Also:
public static final int HFILEBLOCK_HEADER_SIZE
The size of aversion 2 HFile block header, minor version 1. There is a 1 byte checksum type,followed by a 4 byte bytesPerChecksum followed by another 4 byte value to storesizeofDataOnDisk.
See Also:
public static final byte[] HFILEBLOCK_DUMMY_HEADER
Just an arrayof bytes of the right size.
public static final LongZERO_L
long constantfor zero
public static final StringNINES
See Also:
public static final StringZEROES
See Also:
public static final StringVERSION_FILE_NAME
name ofversion file
See Also:
public static final StringFILE_SYSTEM_VERSION
Currentversion of file system. Version 4 supports only one kind of bloom filter.Version 5 changes versions in catalog table regions. Version 6 enablesblockcaching on catalog tables. Version 7 introduces hfile -- hbase 0.19 to0.20.. Version 8 introduces namespace
See Also:
public static final StringCLUSTER_DISTRIBUTED
Cluster is indistributed mode or not
See Also:
· HBASE_MASTER_LOADBALANCER_CLASS
public static final StringHBASE_MASTER_LOADBALANCER_CLASS
Config forpluggable load balancers
See Also:
· HBASE_MASTER_LOADBALANCE_BYTABLE
public static final StringHBASE_MASTER_LOADBALANCE_BYTABLE
Config forbalancing the cluster by table
See Also:
· HBASE_MASTER_BALANCER_MAX_RIT_PERCENT
public static final StringHBASE_MASTER_BALANCER_MAX_RIT_PERCENT
Config forthe max percent of regions in transition
See Also:
· DEFAULT_HBASE_MASTER_BALANCER_MAX_RIT_PERCENT
public static final double DEFAULT_HBASE_MASTER_BALANCER_MAX_RIT_PERCENT
Default valuefor the max percent of regions in transition
See Also:
· HBASE_BALANCER_MAX_BALANCING
public static final StringHBASE_BALANCER_MAX_BALANCING
Config forthe max balancing time
See Also:
public static final StringHBASE_BALANCER_PERIOD
Config forthe balancer period
See Also:
· DEFAULT_HBASE_BALANCER_PERIOD
public static final int DEFAULT_HBASE_BALANCER_PERIOD
Default valuefor the balancer period
See Also:
public static final TableNameENSEMBLE_TABLE_NAME
The name ofthe ensemble table
· HBASE_MASTER_NORMALIZER_CLASS
public static final StringHBASE_MASTER_NORMALIZER_CLASS
Config forpluggable region normalizer
See Also:
public static final boolean CLUSTER_IS_LOCAL
Cluster isstandalone or pseudo-distributed
See Also:
public static final boolean CLUSTER_IS_DISTRIBUTED
Cluster isfully-distributed
See Also:
public static final boolean DEFAULT_CLUSTER_DISTRIBUTED
Default valuefor cluster distributed mode
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public static final StringDEFAULT_HOST
default hostaddress
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public static final StringMASTER_PORT
Parametername for port master listens on.
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public static final int DEFAULT_MASTER_PORT
default portthat the master listens on
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public static final int DEFAULT_MASTER_INFOPORT
default portfor master web api
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public static final StringMASTER_INFO_PORT
Configurationkey for master web API port
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public static final StringMASTER_TYPE_BACKUP
Parametername for the master type being backup (waits for primary to go inactive).
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public static final boolean DEFAULT_MASTER_TYPE_BACKUP
by defaultevery master is a possible primary master unless the conf explicitly overridesit
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public static final StringZOOKEEPER_QUORUM
Name ofZooKeeper quorum configuration parameter.
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public static final StringZK_CFG_PROPERTY_PREFIX
Common prefixof ZooKeeper configuration properties
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public static final int ZK_CFG_PROPERTY_PREFIX_LEN
public static final StringCLIENT_PORT_STR
The ZK clientport key in the ZK properties map. The name reflects the fact that this is notan HBase configuration key.
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public static final StringZOOKEEPER_CLIENT_PORT
Parametername for the client port that the zookeeper listens on
See Also:
· DEFAULT_ZOOKEPER_CLIENT_PORT
public static final int DEFAULT_ZOOKEPER_CLIENT_PORT
Defaultclient port that the zookeeper listens on
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· ZOOKEEPER_RECOVERABLE_WAITTIME
public static final StringZOOKEEPER_RECOVERABLE_WAITTIME
Parametername for the wait time for the recoverable zookeeper
See Also:
· DEFAULT_ZOOKEPER_RECOVERABLE_WAITIME
public static final long DEFAULT_ZOOKEPER_RECOVERABLE_WAITIME
Default waittime for the recoverable zookeeper
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public static final StringZOOKEEPER_ZNODE_PARENT
Parametername for the root dir in ZK for this cluster
See Also:
· DEFAULT_ZOOKEEPER_ZNODE_PARENT
public static final StringDEFAULT_ZOOKEEPER_ZNODE_PARENT
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public static final StringZOOKEEPER_MAX_CLIENT_CNXNS
Parametername for the limit on concurrent client-side zookeeper connections
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public static final StringZOOKEEPER_DATA_DIR
Parametername for the ZK data directory
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public static final StringZOOKEEPER_TICK_TIME
Parametername for the ZK tick time
See Also:
· DEFAULT_ZOOKEPER_MAX_CLIENT_CNXNS
public static final int DEFAULT_ZOOKEPER_MAX_CLIENT_CNXNS
Default limiton concurrent client-side zookeeper connections
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public static final StringZK_SESSION_TIMEOUT
Configurationkey for ZooKeeper session timeout
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public static final int DEFAULT_ZK_SESSION_TIMEOUT
Default valuefor ZooKeeper session timeout
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public static final StringREGIONSERVER_PORT
Parametername for port region server listens on.
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public static final int DEFAULT_REGIONSERVER_PORT
Default portregion server listens on.
See Also:
· DEFAULT_REGIONSERVER_INFOPORT
public static final int DEFAULT_REGIONSERVER_INFOPORT
default portfor region server web api
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public static final StringREGIONSERVER_INFO_PORT
Aconfiguration key for regionserver info port
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public static final StringREGIONSERVER_INFO_PORT_AUTO
A flag thatenables automatic selection of regionserver info port
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public static final StringREGION_SERVER_IMPL
Parametername for what region server implementation to use.
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public static final StringMASTER_IMPL
Parametername for what master implementation to use.
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public static final StringHBASECLIENT_IMPL
Parametername for what hbase client implementation to use.
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public static final StringTHREAD_WAKE_FREQUENCY
Parametername for how often threads should wake up
See Also:
· DEFAULT_THREAD_WAKE_FREQUENCY
public static final int DEFAULT_THREAD_WAKE_FREQUENCY
Default valuefor thread wake frequency
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public static final StringVERSION_FILE_WRITE_ATTEMPTS
Parametername for how often we should try to write a version file, before failing
See Also:
· DEFAULT_VERSION_FILE_WRITE_ATTEMPTS
public static final int DEFAULT_VERSION_FILE_WRITE_ATTEMPTS
Parametername for how often we should try to write a version file, before failing
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public static final StringMAJOR_COMPACTION_PERIOD
Parametername for how often a region should should perform a major compaction
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public static final StringCOMPACTION_KV_MAX
Parametername for the maximum batch of KVs to be used in flushes and compactions
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public static final int COMPACTION_KV_MAX_DEFAULT
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public static final StringHBASE_DIR
Parametername for HBase instance root directory
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public static final StringHBASE_CLIENT_IPC_POOL_TYPE
Parametername for HBase client IPC pool type
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public static final StringHBASE_CLIENT_IPC_POOL_SIZE
Parametername for HBase client IPC pool size
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· HBASE_CLIENT_OPERATION_TIMEOUT
public static final StringHBASE_CLIENT_OPERATION_TIMEOUT
Parametername for HBase client operation timeout.
See Also:
· HBASE_CLIENT_META_OPERATION_TIMEOUT
public static final StringHBASE_CLIENT_META_OPERATION_TIMEOUT
Parametername for HBase client operation timeout.
See Also:
· DEFAULT_HBASE_CLIENT_OPERATION_TIMEOUT
public static final int DEFAULT_HBASE_CLIENT_OPERATION_TIMEOUT
Default HBaseclient operation timeout, which is tantamount to a blocking call
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· HBASE_CLIENT_META_REPLICA_SCAN_TIMEOUT
public static final StringHBASE_CLIENT_META_REPLICA_SCAN_TIMEOUT
Parametername for HBase client meta replica scan call timeout.
See Also:
· HBASE_CLIENT_META_REPLICA_SCAN_TIMEOUT_DEFAULT
public static final int HBASE_CLIENT_META_REPLICA_SCAN_TIMEOUT_DEFAULT
Default HBaseclient meta replica scan call timeout, 1 second
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public static final StringHREGION_LOGDIR_NAME
Used toconstruct the name of the log directory for a region server
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public static final StringSPLIT_LOGDIR_NAME
Used toconstruct the name of the splitlog directory for a region server
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public static final StringHREGION_OLDLOGDIR_NAME
Like theprevious, but for old logs that are about to be deleted
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public static final StringBULKLOAD_STAGING_DIR_NAME
Staging dirused by bulk load
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public static final StringCORRUPT_DIR_NAME
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public static final StringHBCK_SIDELINEDIR_NAME
Used by HBCKto sideline backup data
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public static final StringMIGRATION_NAME
Any artifactsleft from migration can be moved here
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public static final StringLIB_DIR
The directoryfrom which co-processor/custom filter jars can be loaded dynamically by theregion servers. This value can be overridden by the hbase.dynamic.jars.dirconfig.
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public static final StringHREGION_COMPACTIONDIR_NAME
Used toconstruct the name of the compaction directory during compaction
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public static final StringHREGION_MAX_FILESIZE
Conf key forthe max file size after which we split the region
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public static final long DEFAULT_MAX_FILE_SIZE
Defaultmaximum file size
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public static final StringTABLE_MAX_ROWSIZE_KEY
Max size ofsingle row for Get's or Scan's without in-row scanning flag set.
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public static final long TABLE_MAX_ROWSIZE_DEFAULT
Default maxrow size (1 Gb).
See Also:
· HSTORE_OPEN_AND_CLOSE_THREADS_MAX
public static final StringHSTORE_OPEN_AND_CLOSE_THREADS_MAX
The maxnumber of threads used for opening and closing stores or store files inparallel
See Also:
· DEFAULT_HSTORE_OPEN_AND_CLOSE_THREADS_MAX
public static final int DEFAULT_HSTORE_OPEN_AND_CLOSE_THREADS_MAX
The defaultnumber for the max number of threads used for opening and closing stores orstore files in parallel
See Also:
· HREGION_MEMSTORE_BLOCK_MULTIPLIER
public static final StringHREGION_MEMSTORE_BLOCK_MULTIPLIER
Block updatesif memstore has hbase.hregion.memstore.block.multiplier timeshbase.hregion.memstore.flush.size bytes. Useful preventing runaway memstoreduring spikes in update traffic.
See Also:
· DEFAULT_HREGION_MEMSTORE_BLOCK_MULTIPLIER
public static final int DEFAULT_HREGION_MEMSTORE_BLOCK_MULTIPLIER
Default valuefor hbase.hregion.memstore.block.multiplier
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public static final StringHREGION_MEMSTORE_FLUSH_SIZE
Conf key forthe memstore size at which we flush the memstore
See Also:
· HREGION_EDITS_REPLAY_SKIP_ERRORS
public static final StringHREGION_EDITS_REPLAY_SKIP_ERRORS
See Also:
· DEFAULT_HREGION_EDITS_REPLAY_SKIP_ERRORS
public static final boolean DEFAULT_HREGION_EDITS_REPLAY_SKIP_ERRORS
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public static final int MAXIMUM_VALUE_LENGTH
Maximum valuelength, enforced on KeyValue construction
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public static final StringCLUSTER_ID_FILE_NAME
name of thefile for unique cluster ID
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public static final StringCLUSTER_ID_DEFAULT
Default valuefor cluster ID
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public static final StringKEEP_SEQID_PERIOD
Parametername for # days to keep MVCC values during a major compaction
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public static final int MIN_KEEP_SEQID_PERIOD
At least tokeep MVCC values in hfiles for 5 days
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public static final byte[] META_TABLE_NAME
Deprecated. For upgrades of 0.94 to 0.96
Thehbase:meta table's name.
public static final StringBASE_NAMESPACE_DIR
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public static final int META_ROW_DELIMITER
delimiterused between portions of a region name
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public static final StringCATALOG_FAMILY_STR
The catalogfamily as a string
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public static final byte[] CATALOG_FAMILY
The catalogfamily
· REPLICATION_BARRIER_FAMILY_STR
public static final StringREPLICATION_BARRIER_FAMILY_STR
Thereplication barrier family as a string
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public static final byte[] REPLICATION_BARRIER_FAMILY
Thereplication barrier family
· REPLICATION_POSITION_FAMILY_STR
public static final StringREPLICATION_POSITION_FAMILY_STR
Thereplication position family as a string
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public static final byte[] REPLICATION_POSITION_FAMILY
Thereplication position family
public static final StringREPLICATION_META_FAMILY_STR
Thereplication meta family as a string
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public static final byte[] REPLICATION_META_FAMILY
Thereplication meta family
public static final StringREGIONINFO_QUALIFIER_STR
TheRegionInfo qualifier as a string
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public static final byte[] REGIONINFO_QUALIFIER
Theregioninfo column qualifier
public static final StringSERVER_QUALIFIER_STR
The servercolumn qualifier
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public static final byte[] SERVER_QUALIFIER
The servercolumn qualifier
public static final StringSTARTCODE_QUALIFIER_STR
The startcodecolumn qualifier
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public static final byte[] STARTCODE_QUALIFIER
The startcodecolumn qualifier
public static final StringSEQNUM_QUALIFIER_STR
The openseqnum column qualifier
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public static final byte[] SEQNUM_QUALIFIER
The openseqnum column qualifier
public static final StringSTATE_QUALIFIER_STR
The statecolumn qualifier
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public static final byte[] STATE_QUALIFIER
public static final StringSERVERNAME_QUALIFIER_STR
TheserverName column qualifier. Its the server where the region is transitioningon, while column server is the server where the region is opened on. They arethe same when the region is in state OPEN.
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public static final byte[] SERVERNAME_QUALIFIER
public static final byte[] SPLITA_QUALIFIER
Thelower-half split region column qualifier
public static final byte[] SPLITB_QUALIFIER
Theupper-half split region column qualifier
public static final byte[] MERGEA_QUALIFIER
Thelower-half merge region column qualifier
public static final byte[] MERGEB_QUALIFIER
Theupper-half merge region column qualifier
public static final StringTABLE_FAMILY_STR
The catalogfamily as a string
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public static final byte[] TABLE_FAMILY
The catalogfamily
public static final byte[] TABLE_STATE_QUALIFIER
Theserialized table state qualifier
public static final byte[] META_VERSION_QUALIFIER
The metatable version column qualifier. We keep current version of the meta table inthis column in -ROOT- table: i.e. in the 'info:v'column.
public static final short META_VERSION
The currentversion of the meta table. - pre-hbase 0.92. There is no META_VERSION column inthe root table in this case. The meta has HTableDescriptor serialized into theHRegionInfo; - version 0 is 0.92 and 0.94. Meta data has serializedHRegionInfo's using Writable serialization, and HRegionInfo's does not containHTableDescriptors. - version 1 for 0.96+ keeps HRegionInfo data structures, butchanges the byte[] serialization from Writables to Protobuf. SeeHRegionInfo.VERSION
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public static final byte[] EMPTY_BYTE_ARRAY
An emptyinstance.
public static final ByteBufferEMPTY_BYTE_BUFFER
public static final byte[] EMPTY_START_ROW
Used byscanners, etc when they want to start at the beginning of a region
public static final byte[] EMPTY_END_ROW
Last row in atable.
public static final byte[] LAST_ROW
Used byscanners and others when they're trying to detect the end of a table
public static final int MAX_ROW_LENGTH
Max length arow can have because of the limitation in TFile.
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public static final long LATEST_TIMESTAMP
Timestamp touse when we want to refer to the latest cell. This is the timestamp sent byclients when no timestamp is specified on commit.
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public static final long OLDEST_TIMESTAMP
Deprecated. Should not be public since hbase-1.3.0. For internal use only.Move internal to Scanners flagged as special timestamp value never to bereturned as timestamp on a Cell.
Timestamp touse when we want to refer to the oldest cell. Special! Used in fake Cells only.Should never be the timestamp on an actual Cell returned to a client.
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public static final byte[] LATEST_TIMESTAMP_BYTES
LATEST_TIMESTAMPin bytes form
public static final int ALL_VERSIONS
Define for'return-all-versions'.
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public static final int FOREVER
Unlimitedtime-to-live.
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public static final int WEEK_IN_SECONDS
Seconds in aweek
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public static final int DAY_IN_SECONDS
Seconds in aday, hour and minute
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public static final int HOUR_IN_SECONDS
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public static final int MINUTE_IN_SECONDS
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public static final StringNAME
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public static final StringVERSIONS
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public static final StringIN_MEMORY
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public static final StringMETADATA
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public static final StringCONFIGURATION
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public static final int[] RETRY_BACKOFF
Retrying wemultiply hbase.client.pause setting by what we have in this array until we runout of array items. Retries beyond this use the last number in the array. So,for example, if hbase.client.pause is 1 second, and maximum retries counthbase.client.retries.number is 10, we will retry at the following intervals: 1,2, 3, 5, 10, 20, 40, 100, 100, 100. With 100ms, a back-off of 200 means 20s
public static final StringREGION_IMPL
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public static final int REPLICATION_SCOPE_LOCAL
Scope tag forlocally scoped data. This data will not be replicated.
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public static final int REPLICATION_SCOPE_GLOBAL
Scope tag forglobally scoped data. This data will be replicated to all peers.
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public static final int REPLICATION_SCOPE_SERIAL
Scope tag forserially scoped data This data will be replicated to all peers by the order ofsequence id.
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public static final UUIDDEFAULT_CLUSTER_ID
Defaultcluster ID, cannot be used to identify a cluster so a key with this value meansit wasn't meant for replication.
· HBASE_CLIENT_SCANNER_MAX_RESULT_SIZE_KEY
public static final StringHBASE_CLIENT_SCANNER_MAX_RESULT_SIZE_KEY
Parametername for maximum number of bytes returned when calling a scanner's next method.Controlled by the client.
See Also:
· HBASE_SERVER_SCANNER_MAX_RESULT_SIZE_KEY
public static final StringHBASE_SERVER_SCANNER_MAX_RESULT_SIZE_KEY
Parametername for maximum number of bytes returned when calling a scanner's next method.Controlled by the server.
See Also:
· DEFAULT_HBASE_CLIENT_SCANNER_MAX_RESULT_SIZE
public static final long DEFAULT_HBASE_CLIENT_SCANNER_MAX_RESULT_SIZE
Maximumnumber of bytes returned when calling a scanner's next method. Note that when asingle row is larger than this limit the row is still returned completely. Thedefault value is 2MB.
See Also:
· DEFAULT_HBASE_SERVER_SCANNER_MAX_RESULT_SIZE
public static final long DEFAULT_HBASE_SERVER_SCANNER_MAX_RESULT_SIZE
Maximumnumber of bytes returned when calling a scanner's next method. Note that when asingle row is larger than this limit the row is still returned completely.Safety setting to protect the region server. The default value is 100MB. (aclient would rarely request larger chunks on purpose)
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public static final StringHBASE_CLIENT_PAUSE
Parametername for client pause value, used mostly as value to wait before running aretry of a failed get, region lookup, etc.
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public static final long DEFAULT_HBASE_CLIENT_PAUSE
Default valueof HBASE_CLIENT_PAUSE.
See Also:
· HBASE_CLIENT_PAUSE_FOR_CQTBE
public static final StringHBASE_CLIENT_PAUSE_FOR_CQTBE
Parametername for client pause value for special case such as call queue too big, etc.
See Also:
· HBASE_CLIENT_MAX_TOTAL_TASKS
public static final StringHBASE_CLIENT_MAX_TOTAL_TASKS
The maximumnumber of concurrent connections the client will maintain.
See Also:
· DEFAULT_HBASE_CLIENT_MAX_TOTAL_TASKS
public static final int DEFAULT_HBASE_CLIENT_MAX_TOTAL_TASKS
Default valueof HBASE_CLIENT_MAX_TOTAL_TASKS.
See Also:
· HBASE_CLIENT_MAX_PERSERVER_TASKS
public static final StringHBASE_CLIENT_MAX_PERSERVER_TASKS
The maximumnumber of concurrent connections the client will maintain to a singleRegionServer.
See Also:
· DEFAULT_HBASE_CLIENT_MAX_PERSERVER_TASKS
public static final int DEFAULT_HBASE_CLIENT_MAX_PERSERVER_TASKS
Default valueof HBASE_CLIENT_MAX_PERSERVER_TASKS.
See Also:
· HBASE_CLIENT_MAX_PERREGION_TASKS
public static final StringHBASE_CLIENT_MAX_PERREGION_TASKS
The maximumnumber of concurrent connections the client will maintain to a single Region.
See Also:
· DEFAULT_HBASE_CLIENT_MAX_PERREGION_TASKS
public static final int DEFAULT_HBASE_CLIENT_MAX_PERREGION_TASKS
Default valueof HBASE_CLIENT_MAX_PERREGION_TASKS.
See Also:
· HBASE_CLIENT_PERSERVER_REQUESTS_THRESHOLD
public static final StringHBASE_CLIENT_PERSERVER_REQUESTS_THRESHOLD
The maximumnumber of concurrent pending RPC requests for one server in process level.
See Also:
· DEFAULT_HBASE_CLIENT_PERSERVER_REQUESTS_THRESHOLD
public static final int DEFAULT_HBASE_CLIENT_PERSERVER_REQUESTS_THRESHOLD
Default valueof HBASE_CLIENT_PERSERVER_REQUESTS_THRESHOLD.
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public static final StringHBASE_SERVER_PAUSE
Parametername for server pause value, used mostly as value to wait before running aretry of a failed operation.
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public static final int DEFAULT_HBASE_SERVER_PAUSE
Default valueof HBASE_SERVER_PAUSE.
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public static final StringHBASE_CLIENT_RETRIES_NUMBER
Parametername for maximum retries, used as maximum for all retryable operations such asfetching of the root region from root region server, getting a cell's value,starting a row update, etc.
See Also:
· DEFAULT_HBASE_CLIENT_RETRIES_NUMBER
public static final int DEFAULT_HBASE_CLIENT_RETRIES_NUMBER
Default valueof HBASE_CLIENT_RETRIES_NUMBER.
See Also:
· HBASE_CLIENT_SCANNER_CACHING
public static final StringHBASE_CLIENT_SCANNER_CACHING
Parametername to set the default scanner caching for all clients.
See Also:
· DEFAULT_HBASE_CLIENT_SCANNER_CACHING
public static final int DEFAULT_HBASE_CLIENT_SCANNER_CACHING
Default valuefor HBASE_CLIENT_SCANNER_CACHING
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public static final StringHBASE_META_SCANNER_CACHING
Parametername for number of rows that will be fetched when calling next on a scanner ifit is not served from memory. Higher caching values will enable faster scannersbut will eat up more memory and some calls of next may take longer and longertimes when the cache is empty.
See Also:
· DEFAULT_HBASE_META_SCANNER_CACHING
public static final int DEFAULT_HBASE_META_SCANNER_CACHING
Default valueof HBASE_META_SCANNER_CACHING.
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public static final StringHBASE_META_VERSIONS
Parametername for number of versions, kept by meta table.
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public static final int DEFAULT_HBASE_META_VERSIONS
Default valueof HBASE_META_VERSIONS.
See Also:
public static final StringHBASE_META_BLOCK_SIZE
Parametername for number of versions, kept by meta table.
See Also:
· DEFAULT_HBASE_META_BLOCK_SIZE
public static final int DEFAULT_HBASE_META_BLOCK_SIZE
Default valueof HBASE_META_BLOCK_SIZE.
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public static final StringHBASE_CLIENT_INSTANCE_ID
Parametername for unique identifier for this Configuration instance.If there are two or more Configuration instances that, for all intentsand purposes, are the same except for their instance ids, then they will not beable to share the same org.apache.hadoop.hbase.client.HConnection instance. Onthe other hand, even if the instance ids are the same, it could result in non-sharedorg.apache.hadoop.hbase.client.HConnection instances if some of the otherconnection parameters differ.
See Also:
· HBASE_CLIENT_SCANNER_TIMEOUT_PERIOD
public static final StringHBASE_CLIENT_SCANNER_TIMEOUT_PERIOD
The clientscanner timeout period in milliseconds.
See Also:
· HBASE_REGIONSERVER_LEASE_PERIOD_KEY
public static final StringHBASE_REGIONSERVER_LEASE_PERIOD_KEY
Deprecated. This config option is deprecated. Will be removed at laterreleases after 0.96.
Use HBASE_CLIENT_SCANNER_TIMEOUT_PERIOD instead.
See Also:
· DEFAULT_HBASE_CLIENT_SCANNER_TIMEOUT_PERIOD
public static final int DEFAULT_HBASE_CLIENT_SCANNER_TIMEOUT_PERIOD
Default valueof HBASE_CLIENT_SCANNER_TIMEOUT_PERIOD.
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public static final StringHBASE_RPC_TIMEOUT_KEY
timeout foreach RPC
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public static final StringHBASE_RPC_READ_TIMEOUT_KEY
timeout foreach read RPC
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public static final StringHBASE_RPC_WRITE_TIMEOUT_KEY
timeout foreach write RPC
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public static final int DEFAULT_HBASE_RPC_TIMEOUT
Default valueof HBASE_RPC_TIMEOUT_KEY
See Also:
· HBASE_RPC_SHORTOPERATION_TIMEOUT_KEY
public static final StringHBASE_RPC_SHORTOPERATION_TIMEOUT_KEY
timeout forshort operation RPC
See Also:
· DEFAULT_HBASE_RPC_SHORTOPERATION_TIMEOUT
public static final int DEFAULT_HBASE_RPC_SHORTOPERATION_TIMEOUT
Default valueof HBASE_RPC_SHORTOPERATION_TIMEOUT_KEY
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public static final long NO_SEQNUM
Valueindicating the server name was saved with no sequence number.
See Also:
· REPLICATION_SOURCE_SERVICE_CLASSNAME
public static final StringREPLICATION_SOURCE_SERVICE_CLASSNAME
See Also:
· REPLICATION_SINK_SERVICE_CLASSNAME
public static final StringREPLICATION_SINK_SERVICE_CLASSNAME
See Also:
· REPLICATION_SERVICE_CLASSNAME_DEFAULT
public static final StringREPLICATION_SERVICE_CLASSNAME_DEFAULT
See Also:
· REPLICATION_BULKLOAD_ENABLE_KEY
public static final StringREPLICATION_BULKLOAD_ENABLE_KEY
See Also:
· REPLICATION_BULKLOAD_ENABLE_DEFAULT
public static final boolean REPLICATION_BULKLOAD_ENABLE_DEFAULT
See Also:
public static final StringREPLICATION_CLUSTER_ID
Replicationcluster id of source cluster which uniquely identifies itself with peer cluster
See Also:
· REPLICATION_SERIALLY_WAITING_KEY
public static final StringREPLICATION_SERIALLY_WAITING_KEY
See Also:
· REPLICATION_SERIALLY_WAITING_DEFAULT
public static final long REPLICATION_SERIALLY_WAITING_DEFAULT
See Also:
· REPLICATION_SOURCE_TOTAL_BUFFER_KEY
public static final StringREPLICATION_SOURCE_TOTAL_BUFFER_KEY
Max totalsize of buffered entries in all replication peers. It will prevent servergetting OOM if there are many peers. Default value is 256MB which is four timesto default replication.source.size.capacity.
See Also:
· REPLICATION_SOURCE_TOTAL_BUFFER_DFAULT
public static final int REPLICATION_SOURCE_TOTAL_BUFFER_DFAULT
See Also:
public static final StringREPLICATION_CONF_DIR
Directorywhere the source cluster file system client configuration are placed which isused by sink cluster to copy HFiles from source cluster file system
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public static final StringBULKLOAD_MAX_RETRIES_NUMBER
Maximum timeto retry for a failed bulk load request
See Also:
public static final StringHBCK_CODE_NAME
HBCK specialcode name used as server name when manipulating ZK nodes
See Also:
· KEY_FOR_HOSTNAME_SEEN_BY_MASTER
public static final StringKEY_FOR_HOSTNAME_SEEN_BY_MASTER
See Also:
· HBASE_MASTER_LOGCLEANER_PLUGINS
public static final StringHBASE_MASTER_LOGCLEANER_PLUGINS
See Also:
· HBASE_REGION_SPLIT_POLICY_KEY
public static final StringHBASE_REGION_SPLIT_POLICY_KEY
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public static final StringHBASE_RS_NONCES_ENABLED
Whethernonces are enabled; default is true.
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public static final StringHFILE_BLOCK_CACHE_SIZE_KEY
Configurationkey for the size of the block cache
See Also:
· HFILE_BLOCK_CACHE_SIZE_DEFAULT
public static final float HFILE_BLOCK_CACHE_SIZE_DEFAULT
See Also:
· HBASE_CLUSTER_MINIMUM_MEMORY_THRESHOLD
public static final float HBASE_CLUSTER_MINIMUM_MEMORY_THRESHOLD
See Also:
public static final PatternCP_HTD_ATTR_KEY_PATTERN
public static final PatternCP_HTD_ATTR_VALUE_PATTERN
Pattern that matches a coprocessorspecification. Form is:
<coprocessor jar file location> '|'<class name> ['|' <priority> ['|' <arguments>]]
where arguments are <KEY> '=' <VALUE> [,...]
For example: hdfs:///foo.jar|com.foo.FooRegionObserver|1001|arg1=1,arg2=2
· CP_HTD_ATTR_VALUE_PARAM_KEY_PATTERN
public static final StringCP_HTD_ATTR_VALUE_PARAM_KEY_PATTERN
See Also:
· CP_HTD_ATTR_VALUE_PARAM_VALUE_PATTERN
public static final StringCP_HTD_ATTR_VALUE_PARAM_VALUE_PATTERN
See Also:
· CP_HTD_ATTR_VALUE_PARAM_PATTERN
public static final PatternCP_HTD_ATTR_VALUE_PARAM_PATTERN
public static final StringCP_HTD_ATTR_INCLUSION_KEY
See Also:
public static final int SOCKET_RETRY_WAIT_MS
The delaywhen re-trying a socket operation in a loop (HBASE-4712)
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public static final StringLOCALHOST
Host name ofthe local machine
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public static final StringHBASE_CHECKSUM_VERIFICATION
If thisparameter is set to true, then hbase will read data and then verify checksums.Checksum verification inside hdfs will be switched off. However, if thehbase-checksum verification fails, then it will switch back to using hdfschecksums for verifiying data that is being read from storage. If thisparameter is set to false, then hbase will not verify any checksums, instead itwill depend on checksum verification being done in the hdfs client.
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public static final StringLOCALHOST_IP
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public static final StringDISTRIBUTED_LOG_REPLAY_KEY
Conf key thatenables unflushed WAL edits directly being replayed to region servers
See Also:
· DEFAULT_DISTRIBUTED_LOG_REPLAY_CONFIG
public static final boolean DEFAULT_DISTRIBUTED_LOG_REPLAY_CONFIG
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· DISALLOW_WRITES_IN_RECOVERING
public static final StringDISALLOW_WRITES_IN_RECOVERING
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· DEFAULT_DISALLOW_WRITES_IN_RECOVERING_CONFIG
public static final boolean DEFAULT_DISALLOW_WRITES_IN_RECOVERING_CONFIG
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public static final StringREGION_SERVER_HANDLER_COUNT
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· DEFAULT_REGION_SERVER_HANDLER_COUNT
public static final int DEFAULT_REGION_SERVER_HANDLER_COUNT
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· REGION_SERVER_HANDLER_ABORT_ON_ERROR_PERCENT
public static final StringREGION_SERVER_HANDLER_ABORT_ON_ERROR_PERCENT
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· DEFAULT_REGION_SERVER_HANDLER_ABORT_ON_ERROR_PERCENT
public static final double DEFAULT_REGION_SERVER_HANDLER_ABORT_ON_ERROR_PERCENT
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· REGION_SERVER_HIGH_PRIORITY_HANDLER_COUNT
public static final StringREGION_SERVER_HIGH_PRIORITY_HANDLER_COUNT
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· DEFAULT_REGION_SERVER_HIGH_PRIORITY_HANDLER_COUNT
public static final int DEFAULT_REGION_SERVER_HIGH_PRIORITY_HANDLER_COUNT
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· REGION_SERVER_REPLICATION_HANDLER_COUNT
public static final StringREGION_SERVER_REPLICATION_HANDLER_COUNT
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· DEFAULT_REGION_SERVER_REPLICATION_HANDLER_COUNT
public static final int DEFAULT_REGION_SERVER_REPLICATION_HANDLER_COUNT
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public static final StringMASTER_HANDLER_COUNT
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· DEFAULT_MASTER_HANLDER_COUNT
public static final int DEFAULT_MASTER_HANLDER_COUNT
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· LOG_REPLAY_WAIT_REGION_TIMEOUT
public static final StringLOG_REPLAY_WAIT_REGION_TIMEOUT
Conf key thatspecifies timeout value to wait for a region ready
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public static final StringUSE_META_REPLICAS
Conf key forenabling meta replication
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public static final boolean DEFAULT_USE_META_REPLICAS
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public static final StringMETA_REPLICAS_NUM
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public static final int DEFAULT_META_REPLICA_NUM
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public static final StringBYTES_PER_CHECKSUM
The name ofthe configuration parameter that specifies the number of bytes in a newlycreated checksum chunk.
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public static final StringCHECKSUM_TYPE_NAME
The name ofthe configuration parameter that specifies the name of an algorithm that isused to compute checksums for newly created blocks.
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public static final StringENABLE_DATA_FILE_UMASK
Enable filepermission modification from standard hbase
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public static final StringDATA_FILE_UMASK_KEY
Filepermission umask to use when creating hbase data files
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public static final StringENABLE_WAL_COMPRESSION
Configurationname of WAL Compression
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public static final StringWAL_STORAGE_POLICY
Configurationname of WAL storage policy Valid values are: HOT, COLD, WARM, ALL_SSD, ONE_SSD,LAZY_PERSIST Seehttp://hadoop.apache.org/docs/r2.7.3/hadoop-project-dist/hadoop-hdfs/ArchivalStorage.html
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public static final StringDEFAULT_WAL_STORAGE_POLICY
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· METRICS_RIT_STUCK_WARNING_THRESHOLD
public static final StringMETRICS_RIT_STUCK_WARNING_THRESHOLD
Region inTransition metrics threshold time
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public static final StringLOAD_BALANCER_SLOP_KEY
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public static final int DELIMITER
delimiterused between portions of a region name
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public static final int NORMAL_QOS
QOSattributes: these attributes are used to demarcate RPC call processing bydifferent set of handlers. For example, HIGH_QOS tagged methods are handled byhigh priority handlers.
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public static final int REPLICATION_QOS
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public static final int REPLAY_QOS
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public static final int QOS_THRESHOLD
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public static final int ADMIN_QOS
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public static final int HIGH_QOS
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public static final int SYSTEMTABLE_QOS
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public static final StringHFILE_ARCHIVE_DIRECTORY
Directoryunder /hbase where archived hfiles are stored
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public static final StringSNAPSHOT_DIR_NAME
Name of thedirectory to store all snapshots. See SnapshotDescriptionUtils for remainingsnapshot constants; this is here to keep HConstants dependencies at a minimumand uni-directional.
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public static final StringOLD_SNAPSHOT_DIR_NAME
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public static final StringHBASE_TEMP_DIRECTORY
Temporarydirectory used for table creation and deletion
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public static final StringREGIONSERVER_METRICS_PERIOD
The period(in milliseconds) between computing region server point in time metrics
See Also:
· DEFAULT_REGIONSERVER_METRICS_PERIOD
public static final long DEFAULT_REGIONSERVER_METRICS_PERIOD
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public static final List<String>HBASE_NON_TABLE_DIRS
Directoriesthat are not HBase table directories
public static final List<String>HBASE_NON_USER_TABLE_DIRS
Directoriesthat are not HBase user table directories
public static final StringHEALTH_SCRIPT_LOC
Health scriptrelated settings.
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public static final StringHEALTH_SCRIPT_TIMEOUT
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public static final StringHEALTH_CHORE_WAKE_FREQ
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· DEFAULT_HEALTH_SCRIPT_TIMEOUT
public static final long DEFAULT_HEALTH_SCRIPT_TIMEOUT
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public static final StringHEALTH_FAILURE_THRESHOLD
The maximumnumber of health check failures a server can encounter consecutively.
See Also:
· DEFAULT_HEALTH_FAILURE_THRESHOLD
public static final int DEFAULT_HEALTH_FAILURE_THRESHOLD
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public static final StringSTATUS_PUBLISHED
Setting toactivate, or not, the publication of the status by the master. Defaultnotification is by a multicast message.
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public static final boolean STATUS_PUBLISHED_DEFAULT
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public static final StringSTATUS_MULTICAST_ADDRESS
IP to use forthe multicast status messages between the master and the clients. The defaultaddress is chosen as one among others within the ones suitable for multicastmessages.
See Also:
· DEFAULT_STATUS_MULTICAST_ADDRESS
public static final StringDEFAULT_STATUS_MULTICAST_ADDRESS
See Also:
· STATUS_MULTICAST_BIND_ADDRESS
public static final StringSTATUS_MULTICAST_BIND_ADDRESS
The addressto use for binding the local socket for receiving multicast. Defaults to0.0.0.0.
See Also:
HBASE-9961, Constant Field Values
· DEFAULT_STATUS_MULTICAST_BIND_ADDRESS
public static final StringDEFAULT_STATUS_MULTICAST_BIND_ADDRESS
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public static final StringSTATUS_MULTICAST_PORT
The port touse for the multicast messages.
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· DEFAULT_STATUS_MULTICAST_PORT
public static final int DEFAULT_STATUS_MULTICAST_PORT
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public static final long NO_NONCE
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public static final StringCIPHER_AES
Defaultcipher for encryption
See Also:
· CRYPTO_CIPHERPROVIDER_CONF_KEY
public static final StringCRYPTO_CIPHERPROVIDER_CONF_KEY
Configurationkey for the crypto algorithm provider, a class name
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public static final StringCRYPTO_KEYPROVIDER_CONF_KEY
Configurationkey for the crypto key provider, a class name
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· CRYPTO_KEYPROVIDER_PARAMETERS_KEY
public static final StringCRYPTO_KEYPROVIDER_PARAMETERS_KEY
Configurationkey for the crypto key provider parameters
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· CRYPTO_MASTERKEY_NAME_CONF_KEY
public static final StringCRYPTO_MASTERKEY_NAME_CONF_KEY
Configurationkey for the name of the master key for the cluster, a string
See Also:
· CRYPTO_MASTERKEY_ALTERNATE_NAME_CONF_KEY
public static final StringCRYPTO_MASTERKEY_ALTERNATE_NAME_CONF_KEY
Configurationkey for the name of the alternate master key for the cluster, a string
See Also:
· CRYPTO_WAL_ALGORITHM_CONF_KEY
public static final StringCRYPTO_WAL_ALGORITHM_CONF_KEY
Configurationkey for the algorithm to use when encrypting the WAL, a string
See Also:
· CRYPTO_WAL_KEY_NAME_CONF_KEY
public static final StringCRYPTO_WAL_KEY_NAME_CONF_KEY
Configurationkey for the name of the master WAL encryption key for the cluster, a string
See Also:
· CRYPTO_KEY_ALGORITHM_CONF_KEY
public static final StringCRYPTO_KEY_ALGORITHM_CONF_KEY
Configurationkey for the algorithm used for creating jks key, a string
See Also:
· CRYPTO_ALTERNATE_KEY_ALGORITHM_CONF_KEY
public static final StringCRYPTO_ALTERNATE_KEY_ALGORITHM_CONF_KEY
Configurationkey for the name of the alternate cipher algorithm for the cluster, a string
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public static final StringENABLE_WAL_ENCRYPTION
Configurationkey for enabling WAL encryption, a boolean
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public static final StringRPC_CODEC_CONF_KEY
Configurationkey for setting RPC codec class name
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public static final StringREPLICATION_CODEC_CONF_KEY
Configurationkey for setting replication codec class name
See Also:
· REPLICATION_SOURCE_MAXTHREADS_KEY
public static final StringREPLICATION_SOURCE_MAXTHREADS_KEY
Maximumnumber of threads used by the replication source for shipping edits to thesinks
See Also:
· REPLICATION_SOURCE_MAXTHREADS_DEFAULT
public static final int REPLICATION_SOURCE_MAXTHREADS_DEFAULT
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· HBASE_COORDINATED_STATE_MANAGER_CLASS
public static final StringHBASE_COORDINATED_STATE_MANAGER_CLASS
Config forpluggable consensus provider
See Also:
· HBASE_SPLITLOG_MANAGER_TIMEOUT
public static final StringHBASE_SPLITLOG_MANAGER_TIMEOUT
Configurationkey for SplitLog manager timeout
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public static final StringBUCKET_CACHE_IOENGINE_KEY
Currentioengine options in include: heap, offheap and file:PATH (where PATH is thepath to the file that will host the file-based cache. SeeBucketCache#getIOEngineFromName() for list of supported ioengine options.
Set this option and a non-zero BUCKET_CACHE_SIZE_KEY to enable bucketcache.
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public static final StringBUCKET_CACHE_SIZE_KEY
When usingbucket cache, this is a float that EITHER represents a percentage of total heapmemory size to give to the cache (if < 1.0) OR, it is the capacity inmegabytes of the cache.
See Also:
· HBASE_CLIENT_FAST_FAIL_MODE_ENABLED
public static final StringHBASE_CLIENT_FAST_FAIL_MODE_ENABLED
Config forenabling/disabling the fast fail mode.
See Also:
· HBASE_CLIENT_ENABLE_FAST_FAIL_MODE_DEFAULT
public static final boolean HBASE_CLIENT_ENABLE_FAST_FAIL_MODE_DEFAULT
See Also:
· HBASE_CLIENT_FAST_FAIL_THREASHOLD_MS
public static final StringHBASE_CLIENT_FAST_FAIL_THREASHOLD_MS
See Also:
· HBASE_CLIENT_FAST_FAIL_THREASHOLD_MS_DEFAULT
public static final long HBASE_CLIENT_FAST_FAIL_THREASHOLD_MS_DEFAULT
See Also:
· HBASE_CLIENT_FAST_FAIL_CLEANUP_MS_DURATION_MS
public static final StringHBASE_CLIENT_FAST_FAIL_CLEANUP_MS_DURATION_MS
See Also:
· HBASE_CLIENT_FAST_FAIL_CLEANUP_DURATION_MS_DEFAULT
public static final long HBASE_CLIENT_FAST_FAIL_CLEANUP_DURATION_MS_DEFAULT
See Also:
· HBASE_CLIENT_FAST_FAIL_INTERCEPTOR_IMPL
public static final StringHBASE_CLIENT_FAST_FAIL_INTERCEPTOR_IMPL
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public static final StringENABLE_CLIENT_BACKPRESSURE
Config keyfor if the server should send backpressure and if the client should listen tothat backpressure from the server
See Also:
· DEFAULT_ENABLE_CLIENT_BACKPRESSURE
public static final boolean DEFAULT_ENABLE_CLIENT_BACKPRESSURE
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· HEAP_OCCUPANCY_LOW_WATERMARK_KEY
public static final StringHEAP_OCCUPANCY_LOW_WATERMARK_KEY
See Also:
· DEFAULT_HEAP_OCCUPANCY_LOW_WATERMARK
public static final float DEFAULT_HEAP_OCCUPANCY_LOW_WATERMARK
See Also:
· HEAP_OCCUPANCY_HIGH_WATERMARK_KEY
public static final StringHEAP_OCCUPANCY_HIGH_WATERMARK_KEY
See Also:
· DEFAULT_HEAP_OCCUPANCY_HIGH_WATERMARK
public static final float DEFAULT_HEAP_OCCUPANCY_HIGH_WATERMARK
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public static final StringREGION_SPLIT_THREADS_MAX
The maxnumber of threads used for splitting storefiles in parallel during the regionsplit process.
See Also:
· HBASE_CANARY_WRITE_DATA_TTL_KEY
public static final StringHBASE_CANARY_WRITE_DATA_TTL_KEY
Canary configkeys
See Also:
· HBASE_CANARY_WRITE_PERSERVER_REGIONS_LOWERLIMIT_KEY
public static final StringHBASE_CANARY_WRITE_PERSERVER_REGIONS_LOWERLIMIT_KEY
See Also:
· HBASE_CANARY_WRITE_PERSERVER_REGIONS_UPPERLIMIT_KEY
public static final StringHBASE_CANARY_WRITE_PERSERVER_REGIONS_UPPERLIMIT_KEY
See Also:
· HBASE_CANARY_WRITE_VALUE_SIZE_KEY
public static final StringHBASE_CANARY_WRITE_VALUE_SIZE_KEY
See Also:
· HBASE_CANARY_WRITE_TABLE_CHECK_PERIOD_KEY
public static final StringHBASE_CANARY_WRITE_TABLE_CHECK_PERIOD_KEY
See Also:
· HBASE_CANARY_READ_RAW_SCAN_KEY
public static final StringHBASE_CANARY_READ_RAW_SCAN_KEY
See Also:
public static final StringZK_CLIENT_KEYTAB_FILE
Configurationkeys for programmatic JAAS configuration for secured ZK interaction
See Also:
· ZK_CLIENT_KERBEROS_PRINCIPAL
public static final StringZK_CLIENT_KERBEROS_PRINCIPAL
See Also:
public static final StringZK_SERVER_KEYTAB_FILE
See Also:
· ZK_SERVER_KERBEROS_PRINCIPAL
public static final StringZK_SERVER_KERBEROS_PRINCIPAL
See Also:
public static final StringTEMPORARY_FS_DIRECTORY_KEY
Config keyfor hbase temporary directory in hdfs
See Also:
· DEFAULT_TEMPORARY_HDFS_DIRECTORY
public static final StringDEFAULT_TEMPORARY_HDFS_DIRECTORY
· SNAPSHOT_RESTORE_TAKE_FAILSAFE_SNAPSHOT
public static final StringSNAPSHOT_RESTORE_TAKE_FAILSAFE_SNAPSHOT
See Also:
· DEFAULT_SNAPSHOT_RESTORE_TAKE_FAILSAFE_SNAPSHOT
public static final boolean DEFAULT_SNAPSHOT_RESTORE_TAKE_FAILSAFE_SNAPSHOT
See Also:
· SNAPSHOT_RESTORE_FAILSAFE_NAME
public static final StringSNAPSHOT_RESTORE_FAILSAFE_NAME
See Also:
· DEFAULT_SNAPSHOT_RESTORE_FAILSAFE_NAME
public static final StringDEFAULT_SNAPSHOT_RESTORE_FAILSAFE_NAME
See Also:
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