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From "Karl Wright (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CONNECTORS-1156) Can't shut down agents service when automatic ANALYZE TABLE is happening
Date Wed, 04 Feb 2015 16:55:35 GMT

    [ https://issues.apache.org/jira/browse/CONNECTORS-1156?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14305497#comment-14305497
] 

Karl Wright commented on CONNECTORS-1156:
-----------------------------------------

Hi Aeham,

This is very helpful.  Did you happen to see what the sql error code in the SQLException that
was thrown?



> Can't shut down agents service when automatic ANALYZE TABLE is happening
> ------------------------------------------------------------------------
>
>                 Key: CONNECTORS-1156
>                 URL: https://issues.apache.org/jira/browse/CONNECTORS-1156
>             Project: ManifoldCF
>          Issue Type: Bug
>          Components: Framework agents process
>    Affects Versions: ManifoldCF 1.8, ManifoldCF 2.0
>            Reporter: Karl Wright
>            Assignee: Karl Wright
>             Fix For: ManifoldCF 1.9, ManifoldCF 2.1
>
>
> This was detected on MCF 1.8.
> The thread blocking shutdown had the following trace:
> {code}
> "Startup thread" daemon prio=10 tid=0x00007fe73012f000 nid=0x340b in Object.wait() [0x00007fe71f7f6000]
>    java.lang.Thread.State: WAITING (on object monitor)
>     at java.lang.Object.wait(Native Method)
>     at java.lang.Thread.join(Thread.java:1281)
>     - locked <0x00000000e851a0b8> (a org.apache.manifoldcf.core.database.Database$ExecuteQueryThread)
>     at java.lang.Thread.join(Thread.java:1355)
>     at org.apache.manifoldcf.core.database.Database$ExecuteQueryThread.finishUp(Database.java:694)
>     at org.apache.manifoldcf.core.database.Database.executeViaThread(Database.java:728)
>     at org.apache.manifoldcf.core.database.Database.executeUncachedQuery(Database.java:790)
>     at org.apache.manifoldcf.core.database.Database$QueryCacheExecutor.create(Database.java:1444)
>     at org.apache.manifoldcf.core.cachemanager.CacheManager.findObjectsAndExecute(CacheManager.java:146)
>     at org.apache.manifoldcf.core.database.Database.executeQuery(Database.java:191)
>     at org.apache.manifoldcf.core.database.DBInterfacePostgreSQL.performModification(DBInterfacePostgreSQL.java:656)
>     at org.apache.manifoldcf.core.database.DBInterfacePostgreSQL.analyzeTableInternal(DBInterfacePostgreSQL.java:1431)
>     at org.apache.manifoldcf.core.database.DBInterfacePostgreSQL.noteModificationsNoTransactions(DBInterfacePostgreSQL.java:1576)
>     at org.apache.manifoldcf.core.database.Database.playbackModifications(Database.java:429)
>     at org.apache.manifoldcf.core.database.Database.endTransaction(Database.java:414)
>     at org.apache.manifoldcf.core.database.DBInterfacePostgreSQL.endTransaction(DBInterfacePostgreSQL.java:1231)
>     at org.apache.manifoldcf.crawler.jobs.JobManager.resetStartupJob(JobManager.java:7575)
>     at org.apache.manifoldcf.crawler.system.StartupThread.run(StartupThread.java:238)
> {code}
> This was after many minutes of waiting for the shutdown to take place, so clearly it's
looping in the sense that it keeps starting an ANALYZE, gets interrupted, and retries indefinitely.



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