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Date: Thu, 22 Jun 2017 23:35:02 +0000 (UTC)
From: "Michael Shuler (JIRA)" <jira@apache.org>
To: commits@cassandra.apache.org
Message-ID: <JIRA.13072967.1495063930000.86874.1498174502227@Atlassian.JIRA>
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Subject: [jira] [Updated] (CASSANDRA-13538) Cassandra tasks permanently
 block after the following assertion occurs during compaction:
 "java.lang.AssertionError: Interval min > max "
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archived-at: Thu, 22 Jun 2017 23:35:12 -0000


     [ https://issues.apache.org/jira/browse/CASSANDRA-13538?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Michael Shuler updated CASSANDRA-13538:
---------------------------------------
    Fix Version/s:     (was: 2.1.18)
                   2.1.x

> Cassandra tasks permanently block after the following assertion occurs during compaction: "java.lang.AssertionError: Interval min > max "
> -----------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-13538
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-13538
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Compaction
>         Environment: This happens on a 7 node system with 2 data centers. We're using Cassandra version 2.1.15. I upgraded to 2.1.17 and it still occurs.
>            Reporter: Andy Klages
>             Fix For: 2.1.x
>
>         Attachments: cassandra.yaml, jstack.out, schema.cql3, system.log, tpstats.out
>
>
> We noticed this problem because the commitlogs proliferate to the point that we eventually run out of disk space. nodetool tpstats shows several of the tasks backed up:
> {code}
> Pool Name                    Active   Pending      Completed   Blocked  All time blocked
> MutationStage                     0         0      134335315         0                 0
> ReadStage                         0         0      643986790         0                 0
> RequestResponseStage              0         0         114298         0                 0
> ReadRepairStage                   0         0             36         0                 0
> CounterMutationStage              0         0              0         0                 0
> MiscStage                         0         0              0         0                 0
> AntiEntropySessions               1         1          79357         0                 0
> HintedHandoff                     0         0             90         0                 0
> GossipStage                       0         0        6595098         0                 0
> CacheCleanupExecutor              0         0              0         0                 0
> InternalResponseStage             0         0        1638369         0                 0
> CommitLogArchiver                 0         0              0         0                 0
> CompactionExecutor                2       175        2922542         0                 0
> ValidationExecutor                0         0        1465374         0                 0
> MigrationStage                    1        76            600         0                 0
> AntiEntropyStage                  1       923        8291098         0                 0
> PendingRangeCalculator            0         0             20         0                 0
> Sampler                           0         0              0         0                 0
> MemtableFlushWriter               0         0          53017         0                 0
> MemtablePostFlush                 1      4584        1545141         0                 0
> MemtableReclaimMemory             0         0          70639         0                 0
> Native-Transport-Requests         0         0         352559         0                 0
> {code}
> This all starts after the following exception is raised in Cassandra:
> {code}
> ERROR [MemtableFlushWriter:2437] 2017-05-15 01:53:23,380 CassandraDaemon.java:231 - Exception in thread Thread[MemtableFlushWriter:2437,5,main]
> java.lang.AssertionError: Interval min > max
> 	at org.apache.cassandra.utils.IntervalTree$IntervalNode.<init>(IntervalTree.java:249) ~[apache-cassandra-2.1.15.jar:2.1.15]
> 	at org.apache.cassandra.utils.IntervalTree.<init>(IntervalTree.java:72) ~[apache-cassandra-2.1.15.jar:2.1.15]
> 	at org.apache.cassandra.db.DataTracker$SSTableIntervalTree.<init>(DataTracker.java:603) ~[apache-cassandra-2.1.15.jar:2.1.15]
> 	at org.apache.cassandra.db.DataTracker$SSTableIntervalTree.<init>(DataTracker.java:597) ~[apache-cassandra-2.1.15.jar:2.1.15]
> 	at org.apache.cassandra.db.DataTracker.buildIntervalTree(DataTracker.java:578) ~[apache-cassandra-2.1.15.jar:2.1.15]
> 	at org.apache.cassandra.db.DataTracker$View.replaceFlushed(DataTracker.java:740) ~[apache-cassandra-2.1.15.jar:2.1.15]
> 	at org.apache.cassandra.db.DataTracker.replaceFlushed(DataTracker.java:172) ~[apache-cassandra-2.1.15.jar:2.1.15]
> 	at org.apache.cassandra.db.compaction.AbstractCompactionStrategy.replaceFlushed(AbstractCompactionStrategy.java:234) ~[apache-cassandra-2.1.15.jar:2.1.15]
> 	at org.apache.cassandra.db.ColumnFamilyStore.replaceFlushed(ColumnFamilyStore.java:1521) ~[apache-cassandra-2.1.15.jar:2.1.15]
> 	at org.apache.cassandra.db.Memtable$FlushRunnable.runMayThrow(Memtable.java:336) ~[apache-cassandra-2.1.15.jar:2.1.15]
> 	at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28) ~[apache-cassandra-2.1.15.jar:2.1.15]
> 	at com.google.common.util.concurrent.MoreExecutors$SameThreadExecutorService.execute(MoreExecutors.java:297) ~[guava-16.0.jar:na]
> 	at org.apache.cassandra.db.ColumnFamilyStore$Flush.run(ColumnFamilyStore.java:1127) ~[apache-cassandra-2.1.15.jar:2.1.15]
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) ~[na:1.8.0_121]
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) ~[na:1.8.0_121]
> 	at java.lang.Thread.run(Thread.java:745) ~[na:1.8.0_121]
> {code}
> This has only occurred on one of our system tester's setup but with regularity. I couldn't begin to tell you how to reproduce it. We have many systems deployed only one this one setup encounters this issue. I have included the jstack output, config file, log file, and schema. I even have a heap dump available if needed. After looking at the heap dump, the best I can tell is that the assertion failure left a lock (i.e. latch) in a locked state that then causes a backlog of pending tasks.
> I'm hoping this assertion will mean something to the Cassandra development community and perhaps fixed in a newer release.


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