Yaniv Kaul created HADOOP-10991:
-----------------------------------
Summary: 'hadoop namenode -format' fails if user hadoop homedir is
not under /home
Key: HADOOP-10991
URL: https://issues.apache.org/jira/browse/HADOOP-10991
Project: Hadoop Common
Issue Type: Bug
Components: fs
Affects Versions: 2.5.0
Environment: CentOS 6.5
Reporter: Yaniv Kaul
Priority: Minor
Since my homedir is on shared NFS, I couldn't create a user for hadoop on
/home. Therefore, I've used:
useradd hadoop --home /hadoop
which worked well. I've adjusted HADOOP_HOME and friends to match correctly.
Running hdfs namenode -format failed:
{noformat}
14/08/21 13:57:35 INFO namenode.NNConf: XAttrs enabled? true
14/08/21 13:57:35 INFO namenode.NNConf: Maximum size of an xattr: 16384
14/08/21 13:57:35 INFO namenode.FSImage: Allocated new BlockPoolId:
BP-1696511243-10.103.234.197-1408618655940
14/08/21 13:57:35 WARN namenode.NameNode: Encountered exception during format:
java.io.IOException: Cannot create directory
/home/hadoop/hadoopdata/hdfs/namenode/current
at
org.apache.hadoop.hdfs.server.common.Storage$StorageDirectory.clearDirectory(Storage.java:334)
at
org.apache.hadoop.hdfs.server.namenode.NNStorage.format(NNStorage.java:546)
at
org.apache.hadoop.hdfs.server.namenode.NNStorage.format(NNStorage.java:567)
at
org.apache.hadoop.hdfs.server.namenode.FSImage.format(FSImage.java:148)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.format(NameNode.java:926)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1354)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1473)
14/08/21 13:57:35 FATAL namenode.NameNode: Exception in namenode join
java.io.IOException: Cannot create directory
/home/hadoop/hadoopdata/hdfs/namenode/current
at
org.apache.hadoop.hdfs.server.common.Storage$StorageDirectory.clearDirectory(Storage.java:334)
at
org.apache.hadoop.hdfs.server.namenode.NNStorage.format(NNStorage.java:546)
at
org.apache.hadoop.hdfs.server.namenode.NNStorage.format(NNStorage.java:567)
at
org.apache.hadoop.hdfs.server.namenode.FSImage.format(FSImage.java:148)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.format(NameNode.java:926)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1354)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1473)
14/08/21 13:57:35 INFO util.ExitUtil: Exiting with status 1
14/08/21 13:57:35 INFO namenode.NameNode: SHUTDOWN_MSG:
/************************************************************
SHUTDOWN_MSG: Shutting down NameNode at
lgdrm432.xiodrm.lab.emc.com/10.103.234.197
{noformat}
The error seems to be clear:
{noformat}
java.io.IOException: Cannot create directory
/home/hadoop/hadoopdata/hdfs/namenode/current
{noformat}
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