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Date: Fri, 22 May 2009 14:12:48 -0700 (PDT)
From: "Kathey Marsden (JIRA)" <jira@apache.org>
To: derby-dev@db.apache.org
Subject: [jira] Commented: (DERBY-4239) corruption on z/OS with
 storerecovery oc_rec? tests.  ERROR XSLA7: Cannot redo operation null in
 the log.
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    [ https://issues.apache.org/jira/browse/DERBY-4239?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12712265#action_12712265 ] 

Kathey Marsden commented on DERBY-4239:
---------------------------------------

Looking again I see nio is available in 1.4.2.  Does the Derby store behavior change in anyway using 1.4.2. vs 1.5?


> corruption on z/OS with storerecovery oc_rec? tests.  ERROR XSLA7: Cannot redo operation null in the log.
> ---------------------------------------------------------------------------------------------------------
>
>                 Key: DERBY-4239
>                 URL: https://issues.apache.org/jira/browse/DERBY-4239
>             Project: Derby
>          Issue Type: Bug
>          Components: Store
>    Affects Versions: 10.5.1.1
>         Environment: z/OS z10 processor. 
> java version "1.6.0"
> Java(TM) SE Runtime Environment (build pmz3160sr4-20090219_01(SR4))
> IBM J9 VM (build 2.4, J2RE 1.6.0 IBM J9 2.4 z/OS s390-31 jvmmz3160-20090215_29883 (JIT enabled, AOT enabled)
> J9VM - 20090215_029883_bHdSMr
> JIT  - r9_20090213_2028
> GC   - 20090213_AA)
> JCL  - 20090218_01
> also 
> java version "1.6.0"
> Java(TM) SE Runtime Environment (build pmz3160sr2ifix-20081021_01(SR2+IZ32776+IZ33456))
> IBM J9 VM (build 2.4, J2RE 1.6.0 IBM J9 2.4 z/OS s390-31 jvmmz3160ifx-20081010_24288 (JIT enabled, AOT enabled)
> J9VM - 20081009_024288_bHdSMr
> JIT  - r9_20080721_1330ifx2
> GC   - 20080724_AA)
> JCL  - 20080808_02
>            Reporter: Kathey Marsden
>            Priority: Critical
>         Attachments: badlogsizes.txt, derby.log, derby.log, goodlogsizes.txt, identifyBadContainer.ksh, reproDerby4239.zip, wombat_keeplog_notcorrupt.zip, wombat_with_keeplog.zip
>
>
> I saw corruption on z/OS with the storerecovery tests and 10.5.1.1.  The failure comes in oc_rec3 trying to connect to the database, but the actual problem seems to have occurred with the prior test oc_rec2.  The problem is somewhat intermittent, happening approximately 1/4 times.  I extracted the case from the harness and will attach the reproduction and run the script repro.ksh.  The script will loop up to 50 times until it gets the failure which looks like.
> ERROR XSLA7: Cannot redo operation null in the log.
> 	at org.apache.derby.iapi.error.StandardException.newException(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:311)
> 	at java.sql.DriverManager.getConnection(DriverManager.java:268)
> 	at CheckTables.main(CheckTables.java:8)
> Caused by: ERROR XSDBB: Unknown page format at page Page(16,Container(0, 1073)), page dump follows: Hex dump:
> 00000000: 0000 0000 0000 0000 0000 0000 0000 0000  ................
> 00000010: 0000 0000 0000 0000 0000 0000 0000 0000  ................
> <snip lots of 000's>
> I ran it with 10.3 and it completed all 50 iterations, so whether JVM or Derby issue it seems new since 10.3. (I haven't tried with 10.4).  Oddly I have run tests many times before on this machine using in the 10.5.1.1 release and the same jvm and have never seen this failure, so am looking into whether maybe something changed on the machine or environment.

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