org.apache.hadoop.dfs.SafeModeException: Cannot create ***. Name node is in safe mode的解决

最新推荐文章于 2023-11-30 10:53:33 发布
最新推荐文章于 2023-11-30 10:53:33 发布 · 147 阅读 · 0
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#大数据

本文提供了解决Hadoop NameNode处于安全模式的问题方法，只需通过命令让NameNode退出安全模式即可恢复正常操作。

解决方案：关闭hadoop NameNode的安全模式就行了。


bin/hadoop dfsadmin -safemode leave


iteye_18480
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解决单机 hadoop SafeModeException 异常：Cannot create file xxxxxx. Name node is in safe mode
SomeDay的专栏
09-25 1406
这里写目录标题1 问题说明2 排查与解决 1 问题说明 单机 hadoop 运行环境，Java 服务调用上传文件到 hadoop 时报错，异常日志如下 org.apache.hadoop.hdfs.server.namenode.SafeModeException: Cannot create file/partFile/c38b1b95e511960d150898dfbc76d4bf/0. Name node is in safe mode. The reported blocks 0 needs add
hive客户端报错Exception in thread “main“ java.lang.RuntimeException: org.apache.hadoop.hdfs.server.nameno
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Exception in thread "main" java.lang.RuntimeException: org.apache.hadoop.hdfs.server.namenode.SafeModeException: Cannot create directory /tmp/hive/nitb-bak/e562f896-6129-424b-b8b2-fdd4298228a5. Name node is in safe mode. Resources are low on NN. Please add
put: Cannot create file/test.txt._COPYING_. Name node is in safe mode.
weixin_41895381的博客
04-28 7815
put: Cannot create file/test.txt.COPYING. Name node is in safe mode. 一、可能是因为没有离开安全模式 利用：hadoop dfsadmin -safemode leave命令离开安全模式 如果没有配置hadoop的环境变量需要进入hadoop目录下的bin目录执行上面哪个命令 二、是因为你的磁盘已经爆满导致你离开安全模式后依然报...
Hadoop退出安全模式Name node is in safe mode
qq_43573663的博客
10-10 664
解决方案： hadoop dfsadmin -safemode leave 或者： hdfs dfsadmin -safemode leave
hdfs报错解决--SafeModeException: Cannot create file/aaa. Name node is in safe mode.
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今天在学习HDFS时使用Java API向hdfs上传文件时，发现这么个错误： org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.hdfs.server.namenode.SafeModeException): Cannot create file/aaa. Name node is in safe mode. 后来经过百度发现是因...
hdfs分布式系统文件操作错误之Name node is in safe mode的解决方法
东城庞太师
01-11 1103
问题描述： 在将本地文件拷贝到hdfs上去时，出错：Cannot create................node is in safe mode 原因： 分布式文件系统启动后，位于安全模式，不允许删除和修改文件。 解决: 离开安全模式 命令：hadoop dfsadmin -safemode leave 具体如图: 问题解决！可以操作hdfs文件系统。 ...
PriviledgedActionException as:hdfs (auth:SIMPLE) cause:org.apache.hadoop.hdfs.server.namenode.SafeModeException: Cannot create directory /tmp. Name node is in safe mode.如何解决
03-20
当您在使用 Hadoop 集群时遇到 `PriviledgedActionException` 错误，提示 `SafeModeException: Cannot create directory /tmp. Name node is in safe mode.` 这表示名称节点（NameNode）正处于安全模式（safe mode）...
hive which: no hbase in (/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/opt/server/hive-3.1.2/bin:/opt/server/jdk1.8.0_144/bin:/opt/script/:/opt/server/hadoop-3.2.2/bin:/opt/server/hadoop-3.2.2/sbin:/root/bin) Hive Session ID = 63d3a54d-2787-4cf2-9105-b8028082aa59 Logging initialized using configuration in file:/opt/server/hive-3.1.2/conf/hive-log4j2.properties Async: true Exception in thread "main" java.lang.RuntimeException: org.apache.hadoop.hdfs.server.namenode.SafeModeException: Cannot create directory /tmp/hive/root/63d3a54d-2787-4cf2-9105-b8028082aa59. Name node is in safe mode. The reported blocks 625 needs additional 9 blocks to reach the threshold 0.9990 of total blocks 635. The minimum number of live datanodes is not required. Safe mode will be turned off automatically once the thresholds have been reached. NamenodeHostName:server01 at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.newSafemodeException(FSNamesystem.java:1508) at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.checkNameNodeSafeMode(FSNamesystem.java:1495) at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.mkdirs(FSNamesystem.java:3251) at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.mkdirs(NameNodeRpcServer.java:1158) at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.mkdirs(ClientNamenodeProtocolServerSideTranslatorPB.java:723) at org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java) at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:528) at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1086) at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:1029) at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:957) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:422) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1762) at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2957) at org.apache.hadoop.hive.ql.session.SessionState.start(SessionState.java:651) at org.apache.hadoop.hive.ql.session.SessionState.beginStart(SessionState.java:591) at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:747) at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:683) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.hadoop.util.RunJar.run(RunJar.java:323) at org.apache.hadoop.util.RunJar.main(RunJar.java:236) Caused by: org.apache.hadoop.hdfs.server.namenode.SafeModeException: Cannot create directory /tmp/hive/root/63d3a54d-2787-4cf2-9105-b8028082aa59. Name node is in safe mode. The reported blocks 625 needs additional 9 blocks to reach the threshold 0.9990 of total blocks 635. The minimum number of live datanodes is not required. Safe mode will be turned off automatically once the thresholds have been reached. NamenodeHostName:server01 at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.newSafemodeException(FSNamesystem.java:1508) at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.checkNameNodeSafeMode(FSNamesystem.java:1495) at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.mkdirs(FSNamesystem.java:3251) at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.mkdirs(NameNodeRpcServer.java:1158) at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.mkdirs(ClientNamenodeProtocolServerSideTranslatorPB.java:723) at org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java) at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:528) at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1086) at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:1029) at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:957) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:422) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1762) at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2957) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at org.apache.hadoop.ipc.RemoteException.instantiateException(RemoteException.java:121) at org.apache.hadoop.ipc.RemoteException.unwrapRemoteException(RemoteException.java:88) at org.apache.hadoop.hdfs.DFSClient.primitiveMkdir(DFSClient.java:2432) at org.apache.hadoop.hdfs.DFSClient.mkdirs(DFSClient.java:2406) at org.apache.hadoop.hdfs.DistributedFileSystem$27.doCall(DistributedFileSystem.java:1338) at org.apache.hadoop.hdfs.DistributedFileSystem$27.doCall(DistributedFileSystem.java:1335) at org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81) at org.apache.hadoop.hdfs.DistributedFileSystem.mkdirsInternal(DistributedFileSystem.java:1352) at org.apache.hadoop.hdfs.DistributedFileSystem.mkdirs(DistributedFileSystem.java:1327) at org.apache.hadoop.hive.ql.session.SessionState.createPath(SessionState.java:786) at org.apache.hadoop.hive.ql.session.SessionState.createSessionDirs(SessionState.java:721) at org.apache.hadoop.hive.ql.session.SessionState.start(SessionState.java:627) ... 9 more Caused by: org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.hdfs.server.namenode.SafeModeException): Cannot create directory /tmp/hive/root/63d3a54d-2787-4cf2-9105-b8028082aa59. Name node is in safe mode. The reported blocks 625 needs additional 9 blocks to reach the threshold 0.9990 of total blocks 635. The minimum number of live datanodes is not required. Safe mode will be turned off automatically once the thresholds have been reached. NamenodeHostName:server01 at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.newSafemodeException(FSNamesystem.java:1508) at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.checkNameNodeSafeMode(FSNamesystem.java:1495) at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.mkdirs(FSNamesystem.java:3251) at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.mkdirs(NameNodeRpcServer.java:1158) at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.mkdirs(ClientNamenodeProtocolServerSideTranslatorPB.java:723) at org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java) at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:528) at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1086) at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:1029) at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:957) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:422) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1762) at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2957) at org.apache.hadoop.ipc.Client.getRpcResponse(Client.java:1562) at org.apache.hadoop.ipc.Client.call(Client.java:1508) at org.apache.hadoop.ipc.Client.call(Client.java:1405) at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:233) at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:118) at com.sun.proxy.$Proxy28.mkdirs(Unknown Source) at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.mkdirs(ClientNamenodeProtocolTranslatorPB.java:663) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:422) at org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invokeMethod(RetryInvocationHandler.java:165) at org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invoke(RetryInvocationHandler.java:157) at org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invokeOnce(RetryInvocationHandler.java:95) at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:359) at com.sun.proxy.$Proxy29.mkdirs(Unknown Source) at org.apache.hadoop.hdfs.DFSClient.primitiveMkdir(DFSClient.java:2430) ... 18 more
最新发布
11-08
org.apache.hadoop.hdfs.server.namenode.SafeModeException: Cannot create directory /tmp/hive/root/63d3a54d-2787-4cf2-9105-b8028082aa59. Name node is in safe mode. ``` > **Safe Mode 是什么？** > > - ...
【Bug记录】org.apache.hadoop.hdfs.server.namenode.SafeModeException
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报错：org.apache.hadoop.hdfs.server.namenode.SafeModeException: Cannot create directory
天上掉下两毛钱
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报错：org.apache.hadoop.hdfs.server.namenode.SafeModeException: Cannot create directory 原因：安全模式是HDFS所处的一种特殊状态，在这种状态下，文件系统只接受读数据请求，而不接受删除、修改等变更请求。 解决：执行改命令关闭安全模式 hdfs dfsadmin -safemode leave 其他命令： ...
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org.apache.hadoop.security.AccessControlException hive> load data local inpath 'clickstream.txt' into table user_dimension; FAILED: Hive Internal Error: java.lang.RuntimeException(org.apach...
Name node is in safe mode.Name node is in safe mode.
qq_64000756的博客
11-30 1618
"mkdir: Cannot create directory /input. Name node is in safe mode." 这个错误表示无法创建。目录，因为 NameNode 处于安全模式。在安全模式下，HDFS 不允许进行写操作。
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转载自：http://www.waitig.com/hadoop-name-node-is-in-safe-mode.html 在使用Hadoop建立文件的时候，出现“Cannot create directory /user/hadoop/input. Name node is i...
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STU756的专栏
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转载自：http://hi.baidu.com/zhy65991/item/8428013fcf459e342f0f8158safemode模式 NameNode在启动的时候首先进入安全模式，如果datanode丢失的block达到一定的比例（1-dfs.safemode.threshold.pct），则系统会一直处于安全模式状态即只读状态。 dfs.safemode.threshold.pct
Cannot create directory /tmp. Name node is in safe mode
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