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https://issues.apache.org/jira/browse/HDFS-12446?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16169546#comment-16169546
]
Jiandan Yang commented on HDFS-12446:
--
NN log exception info as description. this because LeaseManager$Monitor#run is
in a dead loop, every run will throw IllegalStateException.
[HDFS-11817|https://issues.apache.org/jira/browse/HDFS-11817] has the same
exception, but did not fix completely.
{code:java}
boolean completed = false;
try {
completed = fsnamesystem.internalReleaseLease(
leaseToCheck, p, iip, newHolder);
} catch (IOException e) {
// NOTE: did not catch IllegalStateException
LOG.warn("Cannot release the path " + p + " in the lease "
+ leaseToCheck + ". It will be retried.", e);
continue;
}
{code}
> FSNamesystem#internalReleaseLease throw IllegalStateException
> -
>
> Key: HDFS-12446
> URL: https://issues.apache.org/jira/browse/HDFS-12446
> Project: Hadoop HDFS
> Issue Type: Bug
>Affects Versions: 2.8.1
>Reporter: Jiandan Yang
>
> NameNode always print following logs.
> {code:java}
> 2017-09-14 10:21:32,042 INFO
> org.apache.hadoop.hdfs.server.namenode.LeaseManager: [Lease. Holder:
> DFSClient_NONMAPREDUCE_-275421369_84, pending creates: 7] has expired hard
> limit
> 2017-09-14 10:21:32,042 INFO
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem: Recovering [Lease.
> Holder: DFSClient_NONMAPREDUCE_-275421369_84, pending creates: 7], src=/xxx
> 2017-09-14 10:21:32,042 WARN
> org.apache.hadoop.hdfs.server.namenode.LeaseManager: Unexpected throwable:
> java.lang.IllegalStateException: Unexpected block state:
> blk_1265519060_203004758 is COMMITTED but not COMPLETE, file=xxx (INodeFile),
> blocks=[blk_1265519060_203004758] (i=0)
> at
> com.google.common.base.Preconditions.checkState(Preconditions.java:172)
> at
> org.apache.hadoop.hdfs.server.namenode.INodeFile.assertAllBlocksComplete(INodeFile.java:218)
> at
> org.apache.hadoop.hdfs.server.namenode.INodeFile.toCompleteFile(INodeFile.java:207)
> at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.finalizeINodeFileUnderConstruction(FSNamesystem.java:3312)
> at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.internalReleaseLease(FSNamesystem.java:3184)
> at
> org.apache.hadoop.hdfs.server.namenode.LeaseManager.checkLeases(LeaseManager.java:383)
> at
> org.apache.hadoop.hdfs.server.namenode.LeaseManager$Monitor.run(LeaseManager.java:329)
> at java.lang.Thread.run(Thread.java:834)
> {code}
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