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From "Rick Hillegas (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (DERBY-2254) Assert during log file switch: log file position exceeded max log file size
Date Tue, 10 May 2011 19:37:48 GMT

     [ https://issues.apache.org/jira/browse/DERBY-2254?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Rick Hillegas updated DERBY-2254:
---------------------------------

    Attachment: d2254.zip

Attaching a repro which Knut created. This consists of the repro attached to DERBY-2286, which
Knut discovered pops this bug if run against an in-memory database often enough. This repro
creates an in-memory database and runs 4 update-intensive threads against it. If the bug doesn't
occur within 30 seconds, the experiment is repeated. You may need to edit the run script to
customize the location of your Java 6 jdk and your derby.jar.

To run the repro, just unzip it and type

./run

Running this on a Solaris machine with a lot of processors, I am able to reproduce this bug
sometimes after a couple iterations, usually in under 200 iterations, and always in under
300 iterations.

> Assert during log file switch: log file position exceeded max log file size
> ---------------------------------------------------------------------------
>
>                 Key: DERBY-2254
>                 URL: https://issues.apache.org/jira/browse/DERBY-2254
>             Project: Derby
>          Issue Type: Bug
>          Components: Store
>    Affects Versions: 10.3.1.4
>         Environment: Solaris 10, Java SE 6 build 104 
>            Reporter: Olav Sandstaa
>              Labels: derby_triage10_5_2
>         Attachments: d2254.zip
>
>
> When running simple tpc-b like transactions against a embedded Derby based on a SANE
build of trunk the following assertion occurs for the background thread and all user threads:
>    org.apache.derby.shared.common.sanity.AssertFailure: ASSERT FAILED log file position
exceeded max log file size
> This seems to occur during a switch to a new log file.
> derby.log contains the following call stack for the background thread:
> Exception trace: 
> org.apache.derby.shared.common.sanity.AssertFailure: ASSERT FAILED log file position
exceeded max log file size
> 	at org.apache.derby.shared.common.sanity.SanityManager.ASSERT(SanityManager.java:120)
> 	at org.apache.derby.impl.store.raw.log.LogCounter.makeLogInstantAsLong(LogCounter.java:120)
> 	at org.apache.derby.impl.store.raw.log.LogToFile.switchLogFile(LogToFile.java:1900)
> 	at org.apache.derby.impl.store.raw.log.LogToFile.appendLogRecord(LogToFile.java:3530)
> 	at org.apache.derby.impl.store.raw.log.FileLogger.logAndDo(FileLogger.java:345)
> 	at org.apache.derby.impl.store.raw.xact.Xact.logAndDo(Xact.java:1185)
> 	at org.apache.derby.impl.store.raw.log.LogToFile.checkpointWithTran(LogToFile.java:1540)
> 	at org.apache.derby.impl.store.raw.log.LogToFile.checkpoint(LogToFile.java:1357)
> 	at org.apache.derby.impl.store.raw.RawStore.checkpoint(RawStore.java:439)
> 	at org.apache.derby.impl.store.raw.log.LogToFile.performWork(LogToFile.java:3416)
> 	at org.apache.derby.impl.services.daemon.BasicDaemon.serviceClient(BasicDaemon.java:331)
> 	at org.apache.derby.impl.services.daemon.BasicDaemon.work(BasicDaemon.java:668)
> 	at org.apache.derby.impl.services.daemon.BasicDaemon.run(BasicDaemon.java:394)
> 	at java.lang.Thread.run(Thread.java:619)
> 2007-01-17 23:09:48.638 GMT Thread[derby.rawStoreDaemon,5,derby.daemons] Cleanup action
starting
> org.apache.derby.shared.common.sanity.AssertFailure: ASSERT FAILED log file position
exceeded max log file size
> 	at org.apache.derby.shared.common.sanity.SanityManager.ASSERT(SanityManager.java:120)
> 	at org.apache.derby.impl.store.raw.log.LogCounter.makeLogInstantAsLong(LogCounter.java:120)
> 	at org.apache.derby.impl.store.raw.log.LogToFile.switchLogFile(LogToFile.java:1900)
> 	at org.apache.derby.impl.store.raw.log.LogToFile.appendLogRecord(LogToFile.java:3530)
> 	at org.apache.derby.impl.store.raw.log.FileLogger.logAndDo(FileLogger.java:345)
> 	at org.apache.derby.impl.store.raw.xact.Xact.logAndDo(Xact.java:1185)
> 	at org.apache.derby.impl.store.raw.log.LogToFile.checkpointWithTran(LogToFile.java:1540)
> 	at org.apache.derby.impl.store.raw.log.LogToFile.checkpoint(LogToFile.java:1357)
> 	at org.apache.derby.impl.store.raw.RawStore.checkpoint(RawStore.java:439)
> 	at org.apache.derby.impl.store.raw.log.LogToFile.performWork(LogToFile.java:3416)
> 	at org.apache.derby.impl.services.daemon.BasicDaemon.serviceClient(BasicDaemon.java:331)
> 	at org.apache.derby.impl.services.daemon.BasicDaemon.work(BasicDaemon.java:668)
> 	at org.apache.derby.impl.services.daemon.BasicDaemon.run(BasicDaemon.java:394)
> 	at java.lang.Thread.run(Thread.java:619)
> Cleanup action completed
> For my user threads the call stack is similar:
> Database Class Loader started - derby.database.classpath=''
> 2007-01-17 23:09:36.401 GMT Thread[Thread-51,5,main] (XID = 12632406), (SESSIONID = 51),
(DATABASE = /export/home/tmp/derby-db), (DRDAID = null), Cleanup action starting
> 2007-01-17 23:09:36.401 GMT Thread[Thread-51,5,main] (XID = 12632406), (SESSIONID = 51),
(DATABASE = /export/home/tmp/derby-db), (DRDAID = null), Failed Statement is: UPDATE accounts
SET abal = abal + ? WHERE aid = ? AND bid = ?
> org.apache.derby.shared.common.sanity.AssertFailure: ASSERT FAILED log file position
exceeded max log file size
> 	at org.apache.derby.shared.common.sanity.SanityManager.ASSERT(SanityManager.java:120)
> 	at org.apache.derby.impl.store.raw.log.LogCounter.makeLogInstantAsLong(LogCounter.java:120)
> 	at org.apache.derby.impl.store.raw.log.LogToFile.switchLogFile(LogToFile.java:1900)
> 	at org.apache.derby.impl.store.raw.log.LogToFile.appendLogRecord(LogToFile.java:3530)
> 	at org.apache.derby.impl.store.raw.log.FileLogger.logAndDo(FileLogger.java:345)
> 	at org.apache.derby.impl.store.raw.xact.Xact.logAndDo(Xact.java:1185)
> 	at org.apache.derby.impl.store.raw.data.LoggableActions.doAction(LoggableActions.java:221)
> 	at org.apache.derby.impl.store.raw.data.LoggableActions.actionUpdate(LoggableActions.java:85)
> 	at org.apache.derby.impl.store.raw.data.StoredPage.doUpdateAtSlot(StoredPage.java:8521)
> 	at org.apache.derby.impl.store.raw.data.BasePage.updateAtSlot(BasePage.java:1108)
> 	at org.apache.derby.impl.store.access.conglomerate.GenericConglomerateController.replace(GenericConglomerateController.java:479)
> 	at org.apache.derby.impl.sql.execute.RowChangerImpl.updateRow(RowChangerImpl.java:523)
> 	at org.apache.derby.impl.sql.execute.UpdateResultSet.collectAffectedRows(UpdateResultSet.java:566)
> 	at org.apache.derby.impl.sql.execute.UpdateResultSet.open(UpdateResultSet.java:260)
> 	at org.apache.derby.impl.sql.GenericPreparedStatement.execute(GenericPreparedStatement.java:358)
> 	at org.apache.derby.impl.jdbc.EmbedStatement.executeStatement(EmbedStatement.java:1182)
> 	at org.apache.derby.impl.jdbc.EmbedPreparedStatement.executeStatement(EmbedPreparedStatement.java:1652)
> 	at org.apache.derby.impl.jdbc.EmbedPreparedStatement.executeUpdate(EmbedPreparedStatement.java:299)
> 	at com.sun.derby.perf.clients.tpcb.DBConnection.performTransaction(DBConnection.java:595)
> 	at com.sun.derby.perf.clients.tpcb.Client.run(Client.java:218)
> After this it seems like no user threads are able to connect to the database (not surpricing).
> This happend using a SANE build and I am unsure by just looking at the assertion in the
code whether this situation would have been fatal also if I had been using an INSANE build.

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