[root@master server]#
[root@master server]#
[root@master server]#
[root@master server]#
[root@master server]#
[root@master server]# vi /export/server/hadoop/etc/hadoop/hadoop-env.sh
[root@master server]# ls -ld /export/server/tmp/datanode
drwx------. 2 root root 6 11月 6 20:45 /export/server/tmp/datanode
[root@master server]# chown -R root:root /export/server/tmp/datanode
[root@master server]# chmod -R 755 /export/server/tmp/datanode
[root@master server]# hdfs namenode -format
-bash: hdfs: 未找到命令
[root@master server]# # 停止可能残留进程
[root@master server]# /export/server/hadoop/sbin/stop-dfs.sh
Stopping namenodes on [master]
上一次登录：四 11月 6 20:46:16 CST 2025pts/2 上
master: Unable to get valid context for root
Stopping datanodes
上一次登录：四 11月 6 20:49:54 CST 2025pts/2 上
localhost: Unable to get valid context for root
Stopping secondary namenodes [master]
上一次登录：四 11月 6 20:49:55 CST 2025pts/2 上
master: Unable to get valid context for root
[root@master server]#
[root@master server]# # 清理 NameNode 和 DataNode 目录
[root@master server]# rm -rf /export/server/tmp/namenode/*
[root@master server]# rm -rf /export/server/tmp/datanode/*
[root@master server]# /export/server/hadoop/bin/hdfs namenode -format
2025-11-06 20:50:08,919 INFO namenode.NameNode: STARTUP_MSG:
/************************************************************
STARTUP_MSG: Starting NameNode
STARTUP_MSG: host = master/192.168.10.130
STARTUP_MSG: args = [-format]
STARTUP_MSG: version = 3.1.3
STARTUP_MSG: classpath = /export/server/hadoop/etc/hadoop:/export/server/hadoop/share/hadoop/common/lib/accessors-smart-1.2.jar:/export/server/hadoop/share/hadoop/common/lib/animal-sniffer-annotations-1.17.jar:/export/server/hadoop/share/hadoop/common/lib/asm-5.0.4.jar:/export/server/hadoop/share/hadoop/common/lib/audience-annotations-0.5.0.jar:/export/server/hadoop/share/hadoop/common/lib/avro-1.7.7.jar:/export/server/hadoop/share/hadoop/common/lib/checker-qual-2.5.2.jar:/export/server/hadoop/share/hadoop/common/lib/commons-beanutils-1.9.3.jar:/export/server/hadoop/share/hadoop/common/lib/commons-cli-1.2.jar:/export/server/hadoop/share/hadoop/common/lib/commons-codec-1.11.jar:/export/server/hadoop/share/hadoop/common/lib/commons-collections-3.2.2.jar:/export/server/hadoop/share/hadoop/common/lib/commons-compress-1.18.jar:/export/server/hadoop/share/hadoop/common/lib/commons-configuration2-2.1.1.jar:/export/server/hadoop/share/hadoop/common/lib/commons-io-2.5.jar:/export/server/hadoop/share/hadoop/common/lib/commons-lang-2.6.jar:/export/server/hadoop/share/hadoop/common/lib/commons-lang3-3.4.jar:/export/server/hadoop/share/hadoop/common/lib/commons-logging-1.1.3.jar:/export/server/hadoop/share/hadoop/common/lib/commons-math3-3.1.1.jar:/export/server/hadoop/share/hadoop/common/lib/commons-net-3.6.jar:/export/server/hadoop/share/hadoop/common/lib/curator-client-2.13.0.jar:/export/server/hadoop/share/hadoop/common/lib/curator-framework-2.13.0.jar:/export/server/hadoop/share/hadoop/common/lib/curator-recipes-2.13.0.jar:/export/server/hadoop/share/hadoop/common/lib/error_prone_annotations-2.2.0.jar:/export/server/hadoop/share/hadoop/common/lib/failureaccess-1.0.jar:/export/server/hadoop/share/hadoop/common/lib/gson-2.2.4.jar:/export/server/hadoop/share/hadoop/common/lib/guava-27.0-jre.jar:/export/server/hadoop/share/hadoop/common/lib/hadoop-annotations-3.1.3.jar:/export/server/hadoop/share/hadoop/common/lib/hadoop-auth-3.1.3.jar:/export/server/hadoop/share/hadoop/common/lib/htrace-core4-4.1.0-incubating.jar:/export/server/hadoop/share/hadoop/common/lib/httpclient-4.5.2.jar:/export/server/hadoop/share/hadoop/common/lib/httpcore-4.4.4.jar:/export/server/hadoop/share/hadoop/common/lib/j2objc-annotations-1.1.jar:/export/server/hadoop/share/hadoop/common/lib/jackson-annotations-2.7.8.jar:/export/server/hadoop/share/hadoop/common/lib/jackson-core-2.7.8.jar:/export/server/hadoop/share/hadoop/common/lib/jackson-core-asl-1.9.13.jar:/export/server/hadoop/share/hadoop/common/lib/jackson-databind-2.7.8.jar:/export/server/hadoop/share/hadoop/common/lib/jackson-jaxrs-1.9.13.jar:/export/server/hadoop/share/hadoop/common/lib/jackson-mapper-asl-1.9.13.jar:/export/server/hadoop/share/hadoop/common/lib/jackson-xc-1.9.13.jar:/export/server/hadoop/share/hadoop/common/lib/javax.servlet-api-3.1.0.jar:/export/server/hadoop/share/hadoop/common/lib/jaxb-api-2.2.11.jar:/export/server/hadoop/share/hadoop/common/lib/jaxb-impl-2.2.3-1.jar:/export/server/hadoop/share/hadoop/common/lib/jcip-annotations-1.0-1.jar:/export/server/hadoop/share/hadoop/common/lib/jersey-core-1.19.jar:/export/server/hadoop/share/hadoop/common/lib/jersey-json-1.19.jar:/export/server/hadoop/share/hadoop/common/lib/jersey-server-1.19.jar:/export/server/hadoop/share/hadoop/common/lib/jersey-servlet-1.19.jar:/export/server/hadoop/share/hadoop/common/lib/jettison-1.1.jar:/export/server/hadoop/share/hadoop/common/lib/jetty-http-9.3.24.v20180605.jar:/export/server/hadoop/share/hadoop/common/lib/jetty-io-9.3.24.v20180605.jar:/export/server/hadoop/share/hadoop/common/lib/jetty-security-9.3.24.v20180605.jar:/export/server/hadoop/share/hadoop/common/lib/jetty-server-9.3.24.v20180605.jar:/export/server/hadoop/share/hadoop/common/lib/jetty-servlet-9.3.24.v20180605.jar:/export/server/hadoop/share/hadoop/common/lib/jetty-util-9.3.24.v20180605.jar:/export/server/hadoop/share/hadoop/common/lib/jetty-webapp-9.3.24.v20180605.jar:/export/server/hadoop/share/hadoop/common/lib/jetty-xml-9.3.24.v20180605.jar:/export/server/hadoop/share/hadoop/common/lib/jsch-0.1.54.jar:/export/server/hadoop/share/hadoop/common/lib/json-smart-2.3.jar:/export/server/hadoop/share/hadoop/common/lib/jsp-api-2.1.jar:/export/server/hadoop/share/hadoop/common/lib/jsr305-3.0.0.jar:/export/server/hadoop/share/hadoop/common/lib/jsr311-api-1.1.1.jar:/export/server/hadoop/share/hadoop/common/lib/kerb-admin-1.0.1.jar:/export/server/hadoop/share/hadoop/common/lib/kerb-client-1.0.1.jar:/export/server/hadoop/share/hadoop/common/lib/kerb-common-1.0.1.jar:/export/server/hadoop/share/hadoop/common/lib/kerb-core-1.0.1.jar:/export/server/hadoop/share/hadoop/common/lib/kerb-crypto-1.0.1.jar:/export/server/hadoop/share/hadoop/common/lib/kerb-identity-1.0.1.jar:/export/server/hadoop/share/hadoop/common/lib/kerb-server-1.0.1.jar:/export/server/hadoop/share/hadoop/common/lib/kerb-simplekdc-1.0.1.jar:/export/server/hadoop/share/hadoop/common/lib/kerb-util-1.0.1.jar:/export/server/hadoop/share/hadoop/common/lib/kerby-asn1-1.0.1.jar:/export/server/hadoop/share/hadoop/common/lib/kerby-config-1.0.1.jar:/export/server/hadoop/share/hadoop/common/lib/kerby-pkix-1.0.1.jar:/export/server/hadoop/share/hadoop/common/lib/kerby-util-1.0.1.jar:/export/server/hadoop/share/hadoop/common/lib/kerby-xdr-1.0.1.jar:/export/server/hadoop/share/hadoop/common/lib/listenablefuture-9999.0-empty-to-avoid-conflict-with-guava.jar:/export/server/hadoop/share/hadoop/common/lib/log4j-1.2.17.jar:/export/server/hadoop/share/hadoop/common/lib/netty-3.10.5.Final.jar:/export/server/hadoop/share/hadoop/common/lib/nimbus-jose-jwt-4.41.1.jar:/export/server/hadoop/share/hadoop/common/lib/paranamer-2.3.jar:/export/server/hadoop/share/hadoop/common/lib/protobuf-java-2.5.0.jar:/export/server/hadoop/share/hadoop/common/lib/re2j-1.1.jar:/export/server/hadoop/share/hadoop/common/lib/slf4j-api-1.7.25.jar:/export/server/hadoop/share/hadoop/common/lib/slf4j-log4j12-1.7.25.jar:/export/server/hadoop/share/hadoop/common/lib/snappy-java-1.0.5.jar:/export/server/hadoop/share/hadoop/common/lib/stax2-api-3.1.4.jar:/export/server/hadoop/share/hadoop/common/lib/token-provider-1.0.1.jar:/export/server/hadoop/share/hadoop/common/lib/woodstox-core-5.0.3.jar:/export/server/hadoop/share/hadoop/common/lib/zookeeper-3.4.13.jar:/export/server/hadoop/share/hadoop/common/lib/jul-to-slf4j-1.7.25.jar:/export/server/hadoop/share/hadoop/common/lib/metrics-core-3.2.4.jar:/export/server/hadoop/share/hadoop/common/hadoop-common-3.1.3-tests.jar:/export/server/hadoop/share/hadoop/common/hadoop-common-3.1.3.jar:/export/server/hadoop/share/hadoop/common/hadoop-nfs-3.1.3.jar:/export/server/hadoop/share/hadoop/common/hadoop-kms-3.1.3.jar:/export/server/hadoop/share/hadoop/hdfs:/export/server/hadoop/share/hadoop/hdfs/lib/commons-daemon-1.0.13.jar:/export/server/hadoop/share/hadoop/hdfs/lib/jetty-util-ajax-9.3.24.v20180605.jar:/export/server/hadoop/share/hadoop/hdfs/lib/leveldbjni-all-1.8.jar:/export/server/hadoop/share/hadoop/hdfs/lib/netty-all-4.0.52.Final.jar:/export/server/hadoop/share/hadoop/hdfs/lib/okhttp-2.7.5.jar:/export/server/hadoop/share/hadoop/hdfs/lib/okio-1.6.0.jar:/export/server/hadoop/share/hadoop/hdfs/lib/jersey-servlet-1.19.jar:/export/server/hadoop/share/hadoop/hdfs/lib/jersey-json-1.19.jar:/export/server/hadoop/share/hadoop/hdfs/lib/hadoop-auth-3.1.3.jar:/export/server/hadoop/share/hadoop/hdfs/lib/commons-codec-1.11.jar:/export/server/hadoop/share/hadoop/hdfs/lib/log4j-1.2.17.jar:/export/server/hadoop/share/hadoop/hdfs/lib/httpclient-4.5.2.jar:/export/server/hadoop/share/hadoop/hdfs/lib/httpcore-4.4.4.jar:/export/server/hadoop/share/hadoop/hdfs/lib/commons-logging-1.1.3.jar:/export/server/hadoop/share/hadoop/hdfs/lib/nimbus-jose-jwt-4.41.1.jar:/export/server/hadoop/share/hadoop/hdfs/lib/jcip-annotations-1.0-1.jar:/export/server/hadoop/share/hadoop/hdfs/lib/json-smart-2.3.jar:/export/server/hadoop/share/hadoop/hdfs/lib/accessors-smart-1.2.jar:/export/server/hadoop/share/hadoop/hdfs/lib/asm-5.0.4.jar:/export/server/hadoop/share/hadoop/hdfs/lib/zookeeper-3.4.13.jar:/export/server/hadoop/share/hadoop/hdfs/lib/audience-annotations-0.5.0.jar:/export/server/hadoop/share/hadoop/hdfs/lib/netty-3.10.5.Final.jar:/export/server/hadoop/share/hadoop/hdfs/lib/curator-framework-2.13.0.jar:/export/server/hadoop/share/hadoop/hdfs/lib/curator-client-2.13.0.jar:/export/server/hadoop/share/hadoop/hdfs/lib/guava-27.0-jre.jar:/export/server/hadoop/share/hadoop/hdfs/lib/failureaccess-1.0.jar:/export/server/hadoop/share/hadoop/hdfs/lib/listenablefuture-9999.0-empty-to-avoid-conflict-with-guava.jar:/export/server/hadoop/share/hadoop/hdfs/lib/jsr305-3.0.0.jar:/export/server/hadoop/share/hadoop/hdfs/lib/checker-qual-2.5.2.jar:/export/server/hadoop/share/hadoop/hdfs/lib/error_prone_annotations-2.2.0.jar:/export/server/hadoop/share/hadoop/hdfs/lib/j2objc-annotations-1.1.jar:/export/server/hadoop/share/hadoop/hdfs/lib/animal-sniffer-annotations-1.17.jar:/export/server/hadoop/share/hadoop/hdfs/lib/kerb-simplekdc-1.0.1.jar:/export/server/hadoop/share/hadoop/hdfs/lib/kerb-client-1.0.1.jar:/export/server/hadoop/share/hadoop/hdfs/lib/kerby-config-1.0.1.jar:/export/server/hadoop/share/hadoop/hdfs/lib/kerb-core-1.0.1.jar:/export/server/hadoop/share/hadoop/hdfs/lib/kerby-pkix-1.0.1.jar:/export/server/hadoop/share/hadoop/hdfs/lib/kerby-asn1-1.0.1.jar:/export/server/hadoop/share/hadoop/hdfs/lib/kerby-util-1.0.1.jar:/export/server/hadoop/share/hadoop/hdfs/lib/kerb-common-1.0.1.jar:/export/server/hadoop/share/hadoop/hdfs/lib/kerb-crypto-1.0.1.jar:/export/server/hadoop/share/hadoop/hdfs/lib/commons-io-2.5.jar:/export/server/hadoop/share/hadoop/hdfs/lib/kerb-util-1.0.1.jar:/export/server/hadoop/share/hadoop/hdfs/lib/token-provider-1.0.1.jar:/export/server/hadoop/share/hadoop/hdfs/lib/kerb-admin-1.0.1.jar:/export/server/hadoop/share/hadoop/hdfs/lib/kerb-server-1.0.1.jar:/export/server/hadoop/share/hadoop/hdfs/lib/kerb-identity-1.0.1.jar:/export/server/hadoop/share/hadoop/hdfs/lib/kerby-xdr-1.0.1.jar:/export/server/hadoop/share/hadoop/hdfs/lib/jersey-core-1.19.jar:/export/server/hadoop/share/hadoop/hdfs/lib/jsr311-api-1.1.1.jar:/export/server/hadoop/share/hadoop/hdfs/lib/jersey-server-1.19.jar:/export/server/hadoop/share/hadoop/hdfs/lib/javax.servlet-api-3.1.0.jar:/export/server/hadoop/share/hadoop/hdfs/lib/json-simple-1.1.1.jar:/export/server/hadoop/share/hadoop/hdfs/lib/jetty-server-9.3.24.v20180605.jar:/export/server/hadoop/share/hadoop/hdfs/lib/jetty-http-9.3.24.v20180605.jar:/export/server/hadoop/share/hadoop/hdfs/lib/jetty-util-9.3.24.v20180605.jar:/export/server/hadoop/share/hadoop/hdfs/lib/jetty-io-9.3.24.v20180605.jar:/export/server/hadoop/share/hadoop/hdfs/lib/jetty-webapp-9.3.24.v20180605.jar:/export/server/hadoop/share/hadoop/hdfs/lib/jetty-xml-9.3.24.v20180605.jar:/export/server/hadoop/share/hadoop/hdfs/lib/jetty-servlet-9.3.24.v20180605.jar:/export/server/hadoop/share/hadoop/hdfs/lib/jetty-security-9.3.24.v20180605.jar:/export/server/hadoop/share/hadoop/hdfs/lib/hadoop-annotations-3.1.3.jar:/export/server/hadoop/share/hadoop/hdfs/lib/commons-cli-1.2.jar:/export/server/hadoop/share/hadoop/hdfs/lib/commons-math3-3.1.1.jar:/export/server/hadoop/share/hadoop/hdfs/lib/commons-net-3.6.jar:/export/server/hadoop/share/hadoop/hdfs/lib/commons-collections-3.2.2.jar:/export/server/hadoop/share/hadoop/hdfs/lib/jettison-1.1.jar:/export/server/hadoop/share/hadoop/hdfs/lib/jaxb-impl-2.2.3-1.jar:/export/server/hadoop/share/hadoop/hdfs/lib/jaxb-api-2.2.11.jar:/export/server/hadoop/share/hadoop/hdfs/lib/jackson-core-asl-1.9.13.jar:/export/server/hadoop/share/hadoop/hdfs/lib/jackson-mapper-asl-1.9.13.jar:/export/server/hadoop/share/hadoop/hdfs/lib/jackson-jaxrs-1.9.13.jar:/export/server/hadoop/share/hadoop/hdfs/lib/jackson-xc-1.9.13.jar:/export/server/hadoop/share/hadoop/hdfs/lib/commons-lang-2.6.jar:/export/server/hadoop/share/hadoop/hdfs/lib/commons-beanutils-1.9.3.jar:/export/server/hadoop/share/hadoop/hdfs/lib/commons-configuration2-2.1.1.jar:/export/server/hadoop/share/hadoop/hdfs/lib/commons-lang3-3.4.jar:/export/server/hadoop/share/hadoop/hdfs/lib/avro-1.7.7.jar:/export/server/hadoop/share/hadoop/hdfs/lib/paranamer-2.3.jar:/export/server/hadoop/share/hadoop/hdfs/lib/snappy-java-1.0.5.jar:/export/server/hadoop/share/hadoop/hdfs/lib/commons-compress-1.18.jar:/export/server/hadoop/share/hadoop/hdfs/lib/re2j-1.1.jar:/export/server/hadoop/share/hadoop/hdfs/lib/protobuf-java-2.5.0.jar:/export/server/hadoop/share/hadoop/hdfs/lib/gson-2.2.4.jar:/export/server/hadoop/share/hadoop/hdfs/lib/jsch-0.1.54.jar:/export/server/hadoop/share/hadoop/hdfs/lib/curator-recipes-2.13.0.jar:/export/server/hadoop/share/hadoop/hdfs/lib/htrace-core4-4.1.0-incubating.jar:/export/server/hadoop/share/hadoop/hdfs/lib/jackson-databind-2.7.8.jar:/export/server/hadoop/share/hadoop/hdfs/lib/jackson-annotations-2.7.8.jar:/export/server/hadoop/share/hadoop/hdfs/lib/jackson-core-2.7.8.jar:/export/server/hadoop/share/hadoop/hdfs/lib/stax2-api-3.1.4.jar:/export/server/hadoop/share/hadoop/hdfs/lib/woodstox-core-5.0.3.jar:/export/server/hadoop/share/hadoop/hdfs/hadoop-hdfs-3.1.3-tests.jar:/export/server/hadoop/share/hadoop/hdfs/hadoop-hdfs-3.1.3.jar:/export/server/hadoop/share/hadoop/hdfs/hadoop-hdfs-nfs-3.1.3.jar:/export/server/hadoop/share/hadoop/hdfs/hadoop-hdfs-client-3.1.3-tests.jar:/export/server/hadoop/share/hadoop/hdfs/hadoop-hdfs-client-3.1.3.jar:/export/server/hadoop/share/hadoop/hdfs/hadoop-hdfs-native-client-3.1.3-tests.jar:/export/server/hadoop/share/hadoop/hdfs/hadoop-hdfs-native-client-3.1.3.jar:/export/server/hadoop/share/hadoop/hdfs/hadoop-hdfs-rbf-3.1.3-tests.jar:/export/server/hadoop/share/hadoop/hdfs/hadoop-hdfs-rbf-3.1.3.jar:/export/server/hadoop/share/hadoop/hdfs/hadoop-hdfs-httpfs-3.1.3.jar:/export/server/hadoop/share/hadoop/mapreduce/lib/hamcrest-core-1.3.jar:/export/server/hadoop/share/hadoop/mapreduce/lib/junit-4.11.jar:/export/server/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-app-3.1.3.jar:/export/server/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-common-3.1.3.jar:/export/server/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-core-3.1.3.jar:/export/server/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-hs-3.1.3.jar:/export/server/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-hs-plugins-3.1.3.jar:/export/server/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-3.1.3-tests.jar:/export/server/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-3.1.3.jar:/export/server/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-nativetask-3.1.3.jar:/export/server/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-shuffle-3.1.3.jar:/export/server/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-uploader-3.1.3.jar:/export/server/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-examples-3.1.3.jar:/export/server/hadoop/share/hadoop/yarn:/export/server/hadoop/share/hadoop/yarn/lib/HikariCP-java7-2.4.12.jar:/export/server/hadoop/share/hadoop/yarn/lib/aopalliance-1.0.jar:/export/server/hadoop/share/hadoop/yarn/lib/dnsjava-2.1.7.jar:/export/server/hadoop/share/hadoop/yarn/lib/ehcache-3.3.1.jar:/export/server/hadoop/share/hadoop/yarn/lib/fst-2.50.jar:/export/server/hadoop/share/hadoop/yarn/lib/geronimo-jcache_1.0_spec-1.0-alpha-1.jar:/export/server/hadoop/share/hadoop/yarn/lib/guice-4.0.jar:/export/server/hadoop/share/hadoop/yarn/lib/guice-servlet-4.0.jar:/export/server/hadoop/share/hadoop/yarn/lib/jackson-jaxrs-base-2.7.8.jar:/export/server/hadoop/share/hadoop/yarn/lib/jackson-jaxrs-json-provider-2.7.8.jar:/export/server/hadoop/share/hadoop/yarn/lib/jackson-module-jaxb-annotations-2.7.8.jar:/export/server/hadoop/share/hadoop/yarn/lib/java-util-1.9.0.jar:/export/server/hadoop/share/hadoop/yarn/lib/javax.inject-1.jar:/export/server/hadoop/share/hadoop/yarn/lib/jersey-client-1.19.jar:/export/server/hadoop/share/hadoop/yarn/lib/jersey-guice-1.19.jar:/export/server/hadoop/share/hadoop/yarn/lib/json-io-2.5.1.jar:/export/server/hadoop/share/hadoop/yarn/lib/metrics-core-3.2.4.jar:/export/server/hadoop/share/hadoop/yarn/lib/mssql-jdbc-6.2.1.jre7.jar:/export/server/hadoop/share/hadoop/yarn/lib/objenesis-1.0.jar:/export/server/hadoop/share/hadoop/yarn/lib/snakeyaml-1.16.jar:/export/server/hadoop/share/hadoop/yarn/lib/swagger-annotations-1.5.4.jar:/export/server/hadoop/share/hadoop/yarn/hadoop-yarn-api-3.1.3.jar:/export/server/hadoop/share/hadoop/yarn/hadoop-yarn-applications-distributedshell-3.1.3.jar:/export/server/hadoop/share/hadoop/yarn/hadoop-yarn-applications-unmanaged-am-launcher-3.1.3.jar:/export/server/hadoop/share/hadoop/yarn/hadoop-yarn-client-3.1.3.jar:/export/server/hadoop/share/hadoop/yarn/hadoop-yarn-common-3.1.3.jar:/export/server/hadoop/share/hadoop/yarn/hadoop-yarn-registry-3.1.3.jar:/export/server/hadoop/share/hadoop/yarn/hadoop-yarn-server-applicationhistoryservice-3.1.3.jar:/export/server/hadoop/share/hadoop/yarn/hadoop-yarn-server-common-3.1.3.jar:/export/server/hadoop/share/hadoop/yarn/hadoop-yarn-server-nodemanager-3.1.3.jar:/export/server/hadoop/share/hadoop/yarn/hadoop-yarn-server-resourcemanager-3.1.3.jar:/export/server/hadoop/share/hadoop/yarn/hadoop-yarn-server-router-3.1.3.jar:/export/server/hadoop/share/hadoop/yarn/hadoop-yarn-server-sharedcachemanager-3.1.3.jar:/export/server/hadoop/share/hadoop/yarn/hadoop-yarn-server-tests-3.1.3.jar:/export/server/hadoop/share/hadoop/yarn/hadoop-yarn-server-timeline-pluginstorage-3.1.3.jar:/export/server/hadoop/share/hadoop/yarn/hadoop-yarn-server-web-proxy-3.1.3.jar:/export/server/hadoop/share/hadoop/yarn/hadoop-yarn-services-api-3.1.3.jar:/export/server/hadoop/share/hadoop/yarn/hadoop-yarn-services-core-3.1.3.jar
STARTUP_MSG: build = https://gitbox.apache.org/repos/asf/hadoop.git -r ba631c436b806728f8ec2f54ab1e289526c90579; compiled by 'ztang' on 2019-09-12T02:47Z
STARTUP_MSG: java = 1.8.0_391
************************************************************/
2025-11-06 20:50:08,929 INFO namenode.NameNode: registered UNIX signal handlers for [TERM, HUP, INT]
2025-11-06 20:50:09,070 INFO namenode.NameNode: createNameNode [-format]
2025-11-06 20:50:09,760 INFO common.Util: Assuming 'file' scheme for path /export/server/tmp/namenode in configuration.
2025-11-06 20:50:09,761 INFO common.Util: Assuming 'file' scheme for path /export/server/tmp/namenode in configuration.
Formatting using clusterid: CID-39a7664e-8e3d-4fba-bf06-024957a80acf
2025-11-06 20:50:09,802 INFO namenode.FSEditLog: Edit logging is async:true
2025-11-06 20:50:09,821 INFO namenode.FSNamesystem: KeyProvider: null
2025-11-06 20:50:09,822 INFO namenode.FSNamesystem: fsLock is fair: true
2025-11-06 20:50:09,822 INFO namenode.FSNamesystem: Detailed lock hold time metrics enabled: false
2025-11-06 20:50:09,835 INFO namenode.FSNamesystem: fsOwner = root (auth:SIMPLE)
2025-11-06 20:50:09,835 INFO namenode.FSNamesystem: supergroup = supergroup
2025-11-06 20:50:09,835 INFO namenode.FSNamesystem: isPermissionEnabled = false
2025-11-06 20:50:09,835 INFO namenode.FSNamesystem: HA Enabled: false
2025-11-06 20:50:09,882 INFO common.Util: dfs.datanode.fileio.profiling.sampling.percentage set to 0. Disabling file IO profiling
2025-11-06 20:50:09,889 INFO blockmanagement.DatanodeManager: dfs.block.invalidate.limit: configured=1000, counted=60, effected=1000
2025-11-06 20:50:09,889 INFO blockmanagement.DatanodeManager: dfs.namenode.datanode.registration.ip-hostname-check=true
2025-11-06 20:50:09,893 INFO blockmanagement.BlockManager: dfs.namenode.startup.delay.block.deletion.sec is set to 000:00:00:00.000
2025-11-06 20:50:09,894 INFO blockmanagement.BlockManager: The block deletion will start around 2025 十一月 06 20:50:09
2025-11-06 20:50:09,895 INFO util.GSet: Computing capacity for map BlocksMap
2025-11-06 20:50:09,895 INFO util.GSet: VM type = 64-bit
2025-11-06 20:50:09,896 INFO util.GSet: 2.0% max memory 235.9 MB = 4.7 MB
2025-11-06 20:50:09,896 INFO util.GSet: capacity = 2^19 = 524288 entries
2025-11-06 20:50:09,908 INFO blockmanagement.BlockManager: dfs.block.access.token.enable = false
2025-11-06 20:50:09,924 INFO Configuration.deprecation: No unit for dfs.namenode.safemode.extension(30000) assuming MILLISECONDS
2025-11-06 20:50:09,924 INFO blockmanagement.BlockManagerSafeMode: dfs.namenode.safemode.threshold-pct = 0.9990000128746033
2025-11-06 20:50:09,924 INFO blockmanagement.BlockManagerSafeMode: dfs.namenode.safemode.min.datanodes = 0
2025-11-06 20:50:09,924 INFO blockmanagement.BlockManagerSafeMode: dfs.namenode.safemode.extension = 30000
2025-11-06 20:50:09,925 INFO blockmanagement.BlockManager: defaultReplication = 1
2025-11-06 20:50:09,925 INFO blockmanagement.BlockManager: maxReplication = 512
2025-11-06 20:50:09,925 INFO blockmanagement.BlockManager: minReplication = 1
2025-11-06 20:50:09,925 INFO blockmanagement.BlockManager: maxReplicationStreams = 2
2025-11-06 20:50:09,925 INFO blockmanagement.BlockManager: redundancyRecheckInterval = 3000ms
2025-11-06 20:50:09,925 INFO blockmanagement.BlockManager: encryptDataTransfer = false
2025-11-06 20:50:09,925 INFO blockmanagement.BlockManager: maxNumBlocksToLog = 1000
2025-11-06 20:50:09,943 INFO namenode.FSDirectory: GLOBAL serial map: bits=24 maxEntries=16777215
2025-11-06 20:50:09,959 INFO util.GSet: Computing capacity for map INodeMap
2025-11-06 20:50:09,963 INFO util.GSet: VM type = 64-bit
2025-11-06 20:50:09,964 INFO util.GSet: 1.0% max memory 235.9 MB = 2.4 MB
2025-11-06 20:50:09,964 INFO util.GSet: capacity = 2^18 = 262144 entries
2025-11-06 20:50:09,965 INFO namenode.FSDirectory: ACLs enabled? false
2025-11-06 20:50:09,965 INFO namenode.FSDirectory: POSIX ACL inheritance enabled? true
2025-11-06 20:50:09,965 INFO namenode.FSDirectory: XAttrs enabled? true
2025-11-06 20:50:09,965 INFO namenode.NameNode: Caching file names occurring more than 10 times
2025-11-06 20:50:09,975 INFO snapshot.SnapshotManager: Loaded config captureOpenFiles: false, skipCaptureAccessTimeOnlyChange: false, snapshotDiffAllowSnapRootDescendant: true, maxSnapshotLimit: 65536
2025-11-06 20:50:09,978 INFO snapshot.SnapshotManager: SkipList is disabled
2025-11-06 20:50:09,982 INFO util.GSet: Computing capacity for map cachedBlocks
2025-11-06 20:50:09,982 INFO util.GSet: VM type = 64-bit
2025-11-06 20:50:09,982 INFO util.GSet: 0.25% max memory 235.9 MB = 603.8 KB
2025-11-06 20:50:09,982 INFO util.GSet: capacity = 2^16 = 65536 entries
2025-11-06 20:50:09,996 INFO metrics.TopMetrics: NNTop conf: dfs.namenode.top.window.num.buckets = 10
2025-11-06 20:50:09,996 INFO metrics.TopMetrics: NNTop conf: dfs.namenode.top.num.users = 10
2025-11-06 20:50:09,996 INFO metrics.TopMetrics: NNTop conf: dfs.namenode.top.windows.minutes = 1,5,25
2025-11-06 20:50:09,999 INFO namenode.FSNamesystem: Retry cache on namenode is enabled
2025-11-06 20:50:09,999 INFO namenode.FSNamesystem: Retry cache will use 0.03 of total heap and retry cache entry expiry time is 600000 millis
2025-11-06 20:50:10,001 INFO util.GSet: Computing capacity for map NameNodeRetryCache
2025-11-06 20:50:10,001 INFO util.GSet: VM type = 64-bit
2025-11-06 20:50:10,001 INFO util.GSet: 0.029999999329447746% max memory 235.9 MB = 72.5 KB
2025-11-06 20:50:10,001 INFO util.GSet: capacity = 2^13 = 8192 entries
2025-11-06 20:50:10,055 INFO namenode.FSImage: Allocated new BlockPoolId: BP-267218780-192.168.10.130-1762433410047
2025-11-06 20:50:10,117 INFO common.Storage: Storage directory /export/server/tmp/namenode has been successfully formatted.
2025-11-06 20:50:10,209 INFO namenode.FSImageFormatProtobuf: Saving image file /export/server/tmp/namenode/current/fsimage.ckpt_0000000000000000000 using no compression
2025-11-06 20:50:10,309 INFO namenode.FSImageFormatProtobuf: Image file /export/server/tmp/namenode/current/fsimage.ckpt_0000000000000000000 of size 391 bytes saved in 0 seconds .
2025-11-06 20:50:10,322 INFO namenode.NNStorageRetentionManager: Going to retain 1 images with txid >= 0
2025-11-06 20:50:10,335 INFO namenode.FSImage: FSImageSaver clean checkpoint: txid = 0 when meet shutdown.
2025-11-06 20:50:10,336 INFO namenode.NameNode: SHUTDOWN_MSG:
/************************************************************
SHUTDOWN_MSG: Shutting down NameNode at master/192.168.10.130
************************************************************/
[root@master server]# /export/server/hadoop/sbin/start-dfs.sh
Starting namenodes on [master]
上一次登录：四 11月 6 20:49:56 CST 2025pts/2 上
master: Unable to get valid context for root
Starting datanodes
上一次登录：四 11月 6 20:50:14 CST 2025pts/2 上
localhost: Unable to get valid context for root
Starting secondary namenodes [master]
上一次登录：四 11月 6 20:50:14 CST 2025pts/2 上
master: Unable to get valid context for root
[root@master server]# jps
87714 DataNode
92283 Jps
[root@master server]# lsof -i :9866
-bash: lsof: 未找到命令
[root@master server]# # 或使用 netstat
[root@master server]# netstat -tuln | grep 9866
-bash: netstat: 未找到命令
[root@master server]# systemctl status firewalld
● firewalld.service - firewalld - dynamic firewall daemon
Loaded: loaded (/usr/lib/systemd/system/firewalld.service; disabled; vendor preset: enabled)
Active: inactive (dead)
Docs: man:firewalld(1)
10月 31 16:34:13 master systemd[1]: Starting firewalld - dynamic fi....
10月 31 16:34:13 master systemd[1]: Started firewalld - dynamic fir....
11月 06 20:43:16 master systemd[1]: Stopping firewalld - dynamic fi....
11月 06 20:43:17 master systemd[1]: Stopped firewalld - dynamic fir....
Hint: Some lines were ellipsized, use -l to show in full.
[root@master server]# systemctl stop firewalld
[root@master server]# systemctl disable firewalld
[root@master server]# jps
87714 DataNode
92955 Jps
[root@master server]#
最新发布
本文记录了一次 Hadoop 集群中 DataNode 无法正常连接 NameNode 的故障排查过程。故障表现为存储任务失败，通过查看日志文件发现 DataNode 尝试多次仍未能成功连接 NameNode。进一步检查发现 /etc/hosts 文件中的主机名到 IP 映射被错误修改。
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