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https://issues.apache.org/jira/browse/ASTERIXDB-1438?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15285517#comment-15285517
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Jianfeng Jia commented on ASTERIXDB-1438:
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I hit a similar case on a lower configuration instance recently. When it ran
Insertion works it would never finish. The logs showed a long list of
BufferCache activities that creating and closing the files.
The logs looks like following. Hope it helps.
{code}
May 15, 2016 12:56:23 PM
org.apache.hyracks.storage.am.lsm.common.impls.LSMHarness flush
INFO: Started a flush operation for index: LSMBTree
[/nc1/iodevice1/storage/partition_0/hackathon/log_device_idx_log_device/] ...
May 15, 2016 12:56:23 PM
org.apache.hyracks.storage.common.buffercache.BufferCache createFile
INFO: Creating file:
/nc1/iodevice1/storage/partition_0/hackathon/log_device_idx_log_device/2016-05-15-12-56-23-706_2016-05-15-12-56-23-706_f
in cache: org.apache.hyracks.storage.common.buffercache.BufferCache@6c284af
May 15, 2016 12:56:23 PM
org.apache.hyracks.storage.common.buffercache.BufferCache openFile
INFO: Opening file: 3248 in cache:
org.apache.hyracks.storage.common.buffercache.BufferCache@6c284af
May 15, 2016 12:56:23 PM
org.apache.hyracks.storage.common.buffercache.BufferCache createFile
INFO: Creating file:
/nc1/iodevice1/storage/partition_0/hackathon/log_device_idx_log_device/2016-05-15-12-56-23-706_2016-05-15-12-56-23-706_b
in cache: org.apache.hyracks.storage.common.buffercache.BufferCache@6c284af
May 15, 2016 12:56:23 PM
org.apache.hyracks.storage.common.buffercache.BufferCache openFile
INFO: Opening file: 3249 in cache:
org.apache.hyracks.storage.common.buffercache.BufferCache@6c284af
May 15, 2016 12:56:23 PM
org.apache.hyracks.storage.common.buffercache.BufferCache closeFile
INFO: Closing file: 3249 in cache:
org.apache.hyracks.storage.common.buffercache.BufferCache@6c284af
May 15, 2016 12:56:23 PM
org.apache.hyracks.storage.common.buffercache.BufferCache closeFile
INFO: Closed file: 3249 in cache:
org.apache.hyracks.storage.common.buffercache.BufferCache@6c284af
May 15, 2016 12:56:23 PM
org.apache.hyracks.storage.common.buffercache.BufferCache openFile
INFO: Opening file: 3249 in cache:
org.apache.hyracks.storage.common.buffercache.BufferCache@6c284af
May 15, 2016 12:56:23 PM
org.apache.asterix.transaction.management.service.locking.LockManagerStats
logCounters
INFO: { lock : 1, instantLock : 0, tryLock : 1781454, instantTryLock :
44837154, unlock : 1780961, releaseLocks : 430 }
May 15, 2016 12:56:25 PM
org.apache.hyracks.storage.am.lsm.common.impls.LSMHarness flush
INFO: Finished the flush operation for index: LSMBTree
[/nc1/iodevice1/storage/partition_0/hackathon/log_device_idx_log_device/]
May 15, 2016 12:56:26 PM
org.apache.hyracks.storage.am.lsm.common.impls.LSMHarness flush
INFO: Started a flush operation for index: LSMBTree
[/nc1/iodevice1/storage/partition_0/hackathon/log_device_idx_log_device/] ...
May 15, 2016 12:56:26 PM
org.apache.hyracks.storage.common.buffercache.BufferCache createFile
INFO: Creating file:
/nc1/iodevice1/storage/partition_0/hackathon/log_device_idx_log_device/2016-05-15-12-56-26-434_2016-05-15-12-56-26-434_f
in cache: org.apache.hyracks.storage.common.buffercache.BufferCache@6c284af
May 15, 2016 12:56:26 PM
org.apache.hyracks.storage.common.buffercache.BufferCache openFile
INFO: Opening file: 3250 in cache:
org.apache.hyracks.storage.common.buffercache.BufferCache@6c284af
May 15, 2016 12:56:26 PM
org.apache.hyracks.storage.common.buffercache.BufferCache createFile
INFO: Creating file:
/nc1/iodevice1/storage/partition_0/hackathon/log_device_idx_log_device/2016-05-15-12-56-26-434_2016-05-15-12-56-26-434_b
in cache: org.apache.hyracks.storage.common.buffercache.BufferCache@6c284af
{code}
> BufferCache spins indefinitely when cache is exceeded
> -----------------------------------------------------
>
> Key: ASTERIXDB-1438
> URL: https://issues.apache.org/jira/browse/ASTERIXDB-1438
> Project: Apache AsterixDB
> Issue Type: Bug
> Reporter: Michael Blow
> Assignee: Michael Blow
> Priority: Critical
>
> In case of cache exhaustion, BufferCache.findPage/confiscatePage() will spin
> forever waiting for pages to be returned to the cache. These should give up
> and fail the request after a reasonable number of attempts.
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