JobTracker and TaskTrackers fail with a misleading error if one of the
mapreduce.cluster.dir has unusable permissions / is unavailable.
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Key: MAPREDUCE-2390
URL: https://issues.apache.org/jira/browse/MAPREDUCE-2390
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: jobtracker, tasktracker
Affects Versions: 0.20.2
Environment: CDH3 and Apache 0.20 || Linux
Reporter: Harsh J Chouraria
Assignee: Harsh J Chouraria
To reproduce, have a mapred.local.dir property set to a few directories. Before
starting up the JT, set one of these directories' permission as 'd---------',
and then start the JT/TT. The JT, although it tries to ignore this directory,
fails with an odd and misleading message claiming that its configured address
in use.
Fixing the permission clears this issue!
This was also reported in the mailing lists by Ted Yu, quite a few months ago.
But I had forgotten about filing a bug for it here. Still seems to happen. A
log is attached below.
{code}
2011-03-17 00:40:32,321 WARN org.apache.hadoop.mapred.JobTracker: Error
starting tracker: java.io.IOException: Cannot create toBeDeleted in
/home/hack/.tmplocalz/2
at
org.apache.hadoop.util.MRAsyncDiskService.<init>(MRAsyncDiskService.java:86)
at org.apache.hadoop.mapred.JobTracker.<init>(JobTracker.java:2189)
at org.apache.hadoop.mapred.JobTracker.<init>(JobTracker.java:2022)
at org.apache.hadoop.mapred.JobTracker.startTracker(JobTracker.java:276)
at org.apache.hadoop.mapred.JobTracker.startTracker(JobTracker.java:268)
at org.apache.hadoop.mapred.JobTracker.main(JobTracker.java:4712)
2011-03-17 00:40:33,322 INFO
org.apache.hadoop.security.token.delegation.AbstractDelegationTokenSecretManager:
Updating the current master key for generating delegation tokens
2011-03-17 00:40:33,322 INFO
org.apache.hadoop.security.token.delegation.AbstractDelegationTokenSecretManager:
Starting expired delegation token remover thread, tokenRemoverScanInterval=60
min(s)
2011-03-17 00:40:33,322 INFO
org.apache.hadoop.security.token.delegation.AbstractDelegationTokenSecretManager:
Updating the current master key for generating delegation tokens
2011-03-17 00:40:33,322 INFO org.apache.hadoop.mapred.JobTracker: Scheduler
configured with (memSizeForMapSlotOnJT, memSizeForReduceSlotOnJT,
limitMaxMemForMapTasks, limitMaxMemForReduceTasks) (-1, -1, -1, -1)
2011-03-17 00:40:33,322 INFO org.apache.hadoop.util.HostsFileReader: Refreshing
hosts (include/exclude) list
2011-03-17 00:40:33,350 INFO org.apache.hadoop.mapred.JobTracker: Starting
jobtracker with owner as hack
2011-03-17 00:40:33,351 FATAL org.apache.hadoop.mapred.JobTracker:
java.net.BindException: Problem binding to localhost/127.0.0.1:8021 : Address
already in use
at org.apache.hadoop.ipc.Server.bind(Server.java:227)
at org.apache.hadoop.ipc.Server$Listener.<init>(Server.java:314)
at org.apache.hadoop.ipc.Server.<init>(Server.java:1411)
at org.apache.hadoop.ipc.RPC$Server.<init>(RPC.java:510)
at org.apache.hadoop.ipc.RPC.getServer(RPC.java:471)
at org.apache.hadoop.mapred.JobTracker.<init>(JobTracker.java:2112)
at org.apache.hadoop.mapred.JobTracker.<init>(JobTracker.java:2022)
at org.apache.hadoop.mapred.JobTracker.startTracker(JobTracker.java:276)
at org.apache.hadoop.mapred.JobTracker.startTracker(JobTracker.java:268)
at org.apache.hadoop.mapred.JobTracker.main(JobTracker.java:4712)
Caused by: java.net.BindException: Address already in use
at sun.nio.ch.Net.bind(Native Method)
at
sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:126)
at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:59)
at org.apache.hadoop.ipc.Server.bind(Server.java:225)
... 9 more
2011-03-17 00:40:33,352 INFO org.apache.hadoop.mapred.JobTracker: SHUTDOWN_MSG:
/************************************************************
SHUTDOWN_MSG: Shutting down JobTracker at QDuo/127.0.0.1
************************************************************/
{code}
The list conversation in context, at {{search-hadoop.com}}:
http://search-hadoop.com/m/FzN7iqreL/problem+starting+cdh3b2+jobtracker&subj=problem+starting+cdh3b2+jobtracker
I'll try to investigate and post the exact problem / solution soon.
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