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Posted to issues@nifi.apache.org by "Mark Payne (JIRA)" <ji...@apache.org> on 2017/07/07 20:08:00 UTC
[jira] [Updated] (NIFI-4167) Occasional deadlock when trying to
clean up old Content Claims
[ https://issues.apache.org/jira/browse/NIFI-4167?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Mark Payne updated NIFI-4167:
-----------------------------
Status: Patch Available (was: Open)
> Occasional deadlock when trying to clean up old Content Claims
> --------------------------------------------------------------
>
> Key: NIFI-4167
> URL: https://issues.apache.org/jira/browse/NIFI-4167
> Project: Apache NiFi
> Issue Type: Bug
> Components: Core Framework
> Reporter: Mark Payne
> Assignee: Mark Payne
> Priority: Critical
> Fix For: 1.4.0
>
>
> Occasionally we'll see the Content Repository stop cleaning up old claims. A thread dump shows:
> {code}
> "FileSystemRepository Workers Thread-3" Id=97 BLOCKED on org.apache.nifi.controller.repository.claim.StandardResourceClaim@6b5aa020
> at org.apache.nifi.controller.repository.claim.StandardResourceClaimManager.getClaimantCount(StandardResourceClaimManager.java:73)
> at org.apache.nifi.controller.repository.claim.StandardResourceClaim.isInUse(StandardResourceClaim.java:120)
> at org.apache.nifi.controller.repository.FileSystemRepository.remove(FileSystemRepository.java:612)
> at org.apache.nifi.controller.repository.FileSystemRepository.access$1200(FileSystemRepository.java:83)
> at org.apache.nifi.controller.repository.FileSystemRepository$ArchiveOrDestroyDestructableClaims.run(FileSystemRepository.java:1442)
> {code}
> While another thread shows that it's being marked as Destructable:
> {code}
> "pool-10-thread-1" Id=132 TIMED_WAITING on java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject@38063d7e
> at sun.misc.Unsafe.park(Native Method)
> at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
> at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
> at java.util.concurrent.LinkedBlockingQueue.offer(LinkedBlockingQueue.java:385)
> at org.apache.nifi.controller.repository.claim.StandardResourceClaimManager.markDestructable(StandardResourceClaimManager.java:152)
> - waiting on org.apache.nifi.controller.repository.claim.StandardResourceClaim@6b5aa020
> at org.apache.nifi.controller.repository.WriteAheadFlowFileRepository.markDestructable(WriteAheadFlowFileRepository.java:186)
> at org.apache.nifi.controller.repository.WriteAheadFlowFileRepository.onGlobalSync(WriteAheadFlowFileRepository.java:287)
> at org.wali.MinimalLockingWriteAheadLog.checkpoint(MinimalLockingWriteAheadLog.java:565)
> - waiting on org.wali.MinimalLockingWriteAheadLog@65ab87e4
> at org.apache.nifi.controller.repository.WriteAheadFlowFileRepository.checkpoint(WriteAheadFlowFileRepository.java:416)
> {code}
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