CODEWITHSUNDEEP
javahadoophdfs
Rishi Arora
Rishi Arora

Reputation: 1793

Namenode not getting started on Hortonworks Sandbox

I am trying to run HDFS but the namenode is not getting started, I have alse tried to start it through command like 

sudo -l /usr/hdp/hadoop/sbin/hadoop-daemon.sh --config /usr/hdp/hadoop/conf start namenode

but it doesn't got started. I have seen the hadoop logs and got the following errors:

Errors

2015-04-28 10:36:04,752 FATAL namenode.NameNode (NameNode.java:main(1509)) - Failed to start namenode.java.io.FileNotFoundException: /hadoop/hdfs/namenode/in_use.lock (Permission denied)
    at java.io.RandomAccessFile.open(Native Method)
    at java.io.RandomAccessFile.<init>(RandomAccessFile.java:241)
    at org.apache.hadoop.hdfs.server.common.Storage$StorageDirectory.tryLock(Storage.java:706)
    at org.apache.hadoop.hdfs.server.common.Storage$StorageDirectory.lock(Storage.java:678)
    at org.apache.hadoop.hdfs.server.common.Storage$StorageDirectory.analyzeStorage(Storage.java:499)
    at org.apache.hadoop.hdfs.server.namenode.FSImage.recoverStorageDirs(FSImage.java:308)
    at org.apache.hadoop.hdfs.server.namenode.FSImage.recoverTransitionRead(FSImage.java:202)
    at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFSImage(FSNamesystem.java:1022)
    at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFromDisk(FSNamesystem.java:741)at org.apache.hadoop.hdfs.server.namenode.NameNode.loadNamesystem(NameNode.java:536)
    at org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:595)
    at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:762)
    at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:746)
    at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1438)
    at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1504) 2015-04-28 10:36:04,755 INFO  util.ExitUtil (ExitUtil.java:terminate(124)) - Exiting with status 1 2015-04-28 10:36:04,834 INFO  namenode.NameNode (StringUtils.java:run(659)) - SHUTDOWN_MSG: /************************************************************

Upvotes: 0

Views: 1344

Answers (1)

Rajesh N
Rajesh N

Reputation: 2574

Failed to start namenode.java.io.FileNotFoundException: /hadoop/hdfs/namenode/in_use.lock (Permission denied) at java.io.RandomAccessFile.open(Native Method)

This error might arise if you do not start namenode as hadoop user. Actually, you are trying to run it as root user but the file /hadoop/hdfs/namenode/in_use.lock is owned by hadoop user.

Do not use sudo to start hadoop processess. Try to start it without sudo. Try this:

/usr/hdp/hadoop/sbin/hadoop-daemon.sh --config /usr/hdp/hadoop/conf start namenode

Upvotes: 1

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