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From "Kathey Marsden (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DERBY-4252) intermittent corruption./java.io.EOFException in RandomAccessFile.readInt() on boot after compress with background checkpoint
Date Mon, 16 May 2011 16:03:47 GMT

    [ https://issues.apache.org/jira/browse/DERBY-4252?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13034073#comment-13034073
] 

Kathey Marsden commented on DERBY-4252:
---------------------------------------

The SR9 run on trunk ran 2000 times with out incident.   However this is a different machine
(still XP), different, java version and different derby version.

I went back to SR4 and got a hang after 542 iterations where the ReproCorruptionBackgroundCheckpoint
program completed its work, printing  Ending Test: test1 but did not exit as though there
was some running thread blocking exit.  I tried unsuccessfully to get a thread dump of the
hanging process.  The database itself was fine.

I think I would be comfortable closing this cannot reproduce unless someone else has some
ideas for something else I should try.




> intermittent corruption./java.io.EOFException in RandomAccessFile.readInt() on boot after
compress with background checkpoint
> -----------------------------------------------------------------------------------------------------------------------------
>
>                 Key: DERBY-4252
>                 URL: https://issues.apache.org/jira/browse/DERBY-4252
>             Project: Derby
>          Issue Type: Bug
>          Components: Store
>    Affects Versions: 10.6.1.0
>         Environment: Windows XP dualcore.
> java version "1.6.0"
> Java(TM) SE Runtime Environment (build pwi3260sr4-20090219_01(SR4))
> IBM J9 VM (build 2.4, J2RE 1.6.0 IBM J9 2.4 Windows XP x86-32 jvmwi3260-20090215_29883
(JIT enabled, AOT enabled)
> J9VM - 20090215_029883_lHdSMr
> JIT  - r9_20090213_2028
> GC   - 20090213_AA)
> JCL  - 20090218_01
> Also tried with the latest development SR5 version and it reproduces.
>            Reporter: Kathey Marsden
>            Priority: Critical
>              Labels: derby_triage10_5_2
>         Attachments: corrupt_database_with_logs.zip, reproBackgroundCheckpoint.zip
>
>
> The attached reproduction reproBackgroundCheckpoint.zip occasionally results in an EOF
exception on boot with  IBM 1.6 (about 1 out of 200 runs) even after the fix for   DERBY-4239.
 The program inserts into /deletes some data from a table and runs compress, and as a daemon
thread that loops checkpoints.  I have not seen it with the Sun JVM.
> Before the fix for DERBY-4239, this issue was much more frequent.  Sometimes you would
get the DERBY-4239 trace and sometimes this one.  After the fix, this issue remains.  Mike
thought it looked like a different bug and asked that we file a separate issue.
> This is the trace:
> java.io.EOFException
> 	at java.io.RandomAccessFile.readInt(RandomAccessFile.java:739)
> 	at java.io.RandomAccessFile.readLong(RandomAccessFile.java:772)
> 	at org.apache.derby.impl.store.raw.log.Scan.getNextRecordForward(Unknown Source)
> 	at org.apache.derby.impl.store.raw.log.Scan.getNextRecord(Unknown Source)
> 	at org.apache.derby.impl.store.raw.log.FileLogger.redo(Unknown Source)
> 	at org.apache.derby.impl.store.raw.log.LogToFile.recover(Unknown Source)
> 	at org.apache.derby.impl.store.raw.RawStore.boot(Unknown Source)
> 	at org.apache.derby.impl.services.monitor.BaseMonitor.boot(Unknown Source)
> 	at org.apache.derby.impl.services.monitor.TopService.bootModule(Unknown Source)
> 	at org.apache.derby.impl.services.monitor.BaseMonitor.startModule(Unknown Source)
> 	at org.apache.derby.iapi.services.monitor.Monitor.bootServiceModule(Unknown Source)
> 	at org.apache.derby.impl.store.access.RAMAccessManager.boot(Unknown Source)
> 	at org.apache.derby.impl.services.monitor.BaseMonitor.boot(Unknown Source)
> 	at org.apache.derby.impl.services.monitor.TopService.bootModule(Unknown Source)
> 	at org.apache.derby.impl.services.monitor.BaseMonitor.startModule(Unknown Source)
> 	at org.apache.derby.iapi.services.monitor.Monitor.bootServiceModule(Unknown Source)
> 	at org.apache.derby.impl.db.BasicDatabase.bootStore(Unknown Source)
> 	at org.apache.derby.impl.db.BasicDatabase.boot(Unknown Source)
> 	at org.apache.derby.impl.services.monitor.BaseMonitor.boot(Unknown Source)
> 	at org.apache.derby.impl.services.monitor.TopService.bootModule(Unknown Source)
> 	at org.apache.derby.impl.services.monitor.BaseMonitor.bootService(Unknown Source)
> 	at org.apache.derby.impl.services.monitor.BaseMonitor.startProviderService(Unknown Source)
> 	at org.apache.derby.impl.services.monitor.BaseMonitor.findProviderAndStartService(Unknown
Source)
> 	at org.apache.derby.impl.services.monitor.BaseMonitor.startPersistentService(Unknown
Source)
> 	at org.apache.derby.iapi.services.monitor.Monitor.startPersistentService(Unknown Source)
> 	at org.apache.derby.impl.jdbc.EmbedConnection.bootDatabase(Unknown Source)
> 	at org.apache.derby.impl.jdbc.EmbedConnection.<init>(Unknown Source)
> 	at org.apache.derby.jdbc.Driver40.getNewEmbedConnection(Unknown Source)
> 	at org.apache.derby.jdbc.InternalDriver.connect(Unknown Source)
> 	at org.apache.derby.jdbc.AutoloadedDriver.connect(Unknown Source)
> 	at java.sql.DriverManager.getConnection(DriverManager.java:316)
> 	at java.sql.DriverManager.getConnection(DriverManager.java:273)
> 	at CheckTables.main(CheckTables.java:8)
> To reproduce, compile the java programs and run reprobckchkpt.ksh.  You may want to increase
the number of iterations and let it run overnight to see the failure or back out the fix for
DERBY-4239 to see it happen quicker.

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