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From "Till (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ASTERIXDB-2183) LSMHarness merge fails
Date Thu, 15 Mar 2018 00:03:00 GMT

    [ https://issues.apache.org/jira/browse/ASTERIXDB-2183?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16399639#comment-16399639
] 

Till commented on ASTERIXDB-2183:
---------------------------------

[~imaxon] Can this be resolved?

 

> LSMHarness merge fails
> ----------------------
>
>                 Key: ASTERIXDB-2183
>                 URL: https://issues.apache.org/jira/browse/ASTERIXDB-2183
>             Project: Apache AsterixDB
>          Issue Type: Bug
>          Components: IDX - Indexes
>            Reporter: Taewoo Kim
>            Assignee: Ian Maxon
>            Priority: Major
>              Labels: triaged
>
> LSMHarness merge() operation fails on indexes with the following error. All index types
are affected.
> Nov 30, 2017 6:58:07 PM org.apache.hyracks.storage.am.lsm.common.impls.LSMHarness merge
> SEVERE: Failed merge operation on {"class" : "LSMInvertedIndex", "dir" : "/mnt/ssd/scratch/waans11/asterixdb/io1/storage/partition_4/twitter/ds_tweet_idx_text_idx",
"memory" : 2, "disk" : 894}
> java.lang.Error: Maximum lock count exceeded
>         at java.util.concurrent.locks.ReentrantReadWriteLock$Sync.fullTryAcquireShared(ReentrantReadWriteLock.java:528)
>         at java.util.concurrent.locks.ReentrantReadWriteLock$Sync.tryAcquireShared(ReentrantReadWriteLock.java:488)
>         at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireShared(AbstractQueuedSynchronizer.java:1282)
>         at java.util.concurrent.locks.ReentrantReadWriteLock$ReadLock.lock(ReentrantReadWriteLock.java:727)
>         at org.apache.hyracks.storage.common.buffercache.CachedPage.acquireReadLatch(CachedPage.java:120)
>         at org.apache.hyracks.storage.am.btree.impls.BTree.acquireLatch(BTree.java:542)
>         at org.apache.hyracks.storage.am.btree.impls.BTree.performOp(BTree.java:570)
>         at org.apache.hyracks.storage.am.btree.impls.BTree.search(BTree.java:198)
>         at org.apache.hyracks.storage.am.btree.impls.BTree.access$300(BTree.java:69)
>         at org.apache.hyracks.storage.am.btree.impls.BTree$BTreeAccessor.search(BTree.java:902)
>         at org.apache.hyracks.storage.am.lsm.invertedindex.ondisk.OnDiskInvertedIndexRangeSearchCursor.open(OnDiskInvertedIndexRangeSearchCursor.java:74)
>         at org.apache.hyracks.storage.am.lsm.invertedindex.ondisk.OnDiskInvertedIndex$OnDiskInvertedIndexAccessor.rangeSearch(OnDiskInvertedIndex.java:463)
>         at org.apache.hyracks.storage.am.lsm.invertedindex.impls.LSMInvertedIndexRangeSearchCursor.open(LSMInvertedIndexRangeSearchCursor.java:68)
>         at org.apache.hyracks.storage.am.lsm.invertedindex.impls.LSMInvertedIndex.search(LSMInvertedIndex.java:223)
>         at org.apache.hyracks.storage.am.lsm.invertedindex.impls.LSMInvertedIndex.doMerge(LSMInvertedIndex.java:353)
>         at org.apache.hyracks.storage.am.lsm.common.impls.AbstractLSMIndex.merge(AbstractLSMIndex.java:671)
>         at org.apache.hyracks.storage.am.lsm.common.impls.LSMHarness.merge(LSMHarness.java:574)
>         at org.apache.hyracks.storage.am.lsm.invertedindex.impls.LSMInvertedIndexAccessor.merge(LSMInvertedIndexAccessor.java:124)
>         at org.apache.hyracks.storage.am.lsm.common.impls.MergeOperation.call(MergeOperation.java:45)
>         at org.apache.hyracks.storage.am.lsm.common.impls.MergeOperation.call(MergeOperation.java:30)
>         at java.util.concurrent.FutureTask.run(FutureTask.java:266)
>         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
>         at java.lang.Thread.run(Thread.java:744)
> This error was generated continuously until the node becomes inactive.



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