锁定老帖子 主题:hadoop 异常
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发表时间:2012-02-16
java.io.IOException: File /user/root/input could only be replicated to 0 nodes, instead of 1 at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalBlock(FSNamesystem.java:1271) at org.apache.hadoop.hdfs.server.namenode.NameNode.addBlock(NameNode.java:422) at sun.reflect.GeneratedMethodAccessor7.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:508) at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:959) at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:955) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:396) at org.apache.hadoop.ipc.Server$Handler.run(Server.java:953)
org.apache.hadoop.ipc.RemoteException: java.io.IOException: File /user/root/input could only be replicated to 0 nodes, instead of 1 at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalBlock(FSNamesystem.java:1271) at org.apache.hadoop.hdfs.server.namenode.NameNode.addBlock(NameNode.java:422) at sun.reflect.GeneratedMethodAccessor7.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:508) at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:959) at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:955) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:396) at org.apache.hadoop.ipc.Server$Handler.run(Server.java:953)
at org.apache.hadoop.ipc.Client.call(Client.java:740) at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:220) at $Proxy0.addBlock(Unknown Source) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:82) at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:59) at $Proxy0.addBlock(Unknown Source) at org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.locateFollowingBlock(DFSClient.java:2937) at org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.nextBlockOutputStream(DFSClient.java:2819) at org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.access$2000(DFSClient.java:2102) at org.apache.hadoop.hdfs.DFSClient$DFSOutputStream$DataStreamer.run(DFSClient.java:2288) 原因:Configured Capacity也就是datanode 没用分配容量 [root@dev9106 bin]# ./hadoop dfsadmin -report Configured Capacity: 0 (0 KB) Present Capacity: 0 (0 KB) DFS Remaining: 0 (0 KB) DFS Used: 0 (0 KB) DFS Used%: ?% Under replicated blocks: 0 Blocks with corrupt replicas: 0 Missing blocks: 0 解决方法: <!--[if !supportLists]-->1. <!--[endif]-->查看你的文件系统 [root@dev9106 /]# df -hl 文件系统 容量 已用 可用 已用% 挂载点 /dev/sda3 1.9G 1.6G 302M 84% / /dev/sda8 845G 47G 756G 6% /home /dev/sda7 5.7G 147M 5.3G 3% /tmp /dev/sda6 9.5G 4.0G 5.1G 45% /usr /dev/sda5 9.5G 273M 8.8G 3% /var /dev/sda1 190M 15M 167M 8% /boot tmpfs 7.8G 0 7.8G 0% /dev/shm <!--[if !supportLists]-->2. <!--[endif]-->修改文件Hadoop conf/core-site.xml 中hadoop.tmp.dir的值 <property> <name>fs.default.name</name> <value>hdfs://localhost:9000</value> </property> <property> <name>hadoop.tmp.dir</name> <value>/home/dhfs/tmp</value> </property> </configuration> <!--[if !supportLists]-->3. <!--[endif]-->停止hadoop服务,重新格式化namenode <!--[if !supportLists]-->4. <!--[endif]-->重启服务 <!--[if !supportLists]-->5. <!--[endif]-->Ok
2. 运行hadoop程序时, 中途我把它终止了,然后再向hdfs加文件或删除文件时,出现Name
node is in safe mode错误:
解决的命令: bin/hadoop dfsadmin -safemode leave 关闭safe mode 声明:ITeye文章版权属于作者,受法律保护。没有作者书面许可不得转载。
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发表时间:2013-01-11
没看明白 hadoop.tmp.dir到底怎么了?
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