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From "Kathey Marsden (JIRA)" <j...@apache.org>
Subject [jira] Closed: (DERBY-3976) Running out of file descriptors on recovery can give NullPointerException. Should give clearer message
Date Tue, 09 Dec 2008 23:58:44 GMT

     [ https://issues.apache.org/jira/browse/DERBY-3976?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Kathey Marsden closed DERBY-3976.
---------------------------------

    Resolution: Invalid

Closing this as invalid, the log did actually have the too many files open message even though
it wasn't returned to the user. That's probably the best we can do.


> Running out of file descriptors on recovery can give NullPointerException. Should give
clearer message
> ------------------------------------------------------------------------------------------------------
>
>                 Key: DERBY-3976
>                 URL: https://issues.apache.org/jira/browse/DERBY-3976
>             Project: Derby
>          Issue Type: Bug
>          Components: Store
>    Affects Versions: 10.1.3.1, 10.2.2.0, 10.3.3.0, 10.4.2.0, 10.5.0.0
>            Reporter: Kathey Marsden
>            Priority: Minor
>         Attachments: derby.log, ReproNPEOnLowFD.java
>
>
> Running out of file descriptors on recovery can cause a NullPointerException. It should
give a clearer message.  To reproduce
> 1) Run attached program with create argument
>    java ReproNPEOnLowFD create
> 2) Set ulimit low
>     ulimit -n 100
> 3) Run the program again with no argements
>    java ReproNPEOnLowFD
> # java ReproNPEOnLowFD create
> Creating database
> # ulimit -n 100
> # java ReproNPEOnLowFD
> java.lang.NullPointerException
>         at org.apache.derby.impl.store.raw.data.BaseDataFileFactory.openContainer(BaseDataFileFactory.java:558)
>         at org.apache.derby.impl.store.raw.data.BaseDataFileFactory.openDroppedContainer(BaseDataFileFactory.java:514)
>         at org.apache.derby.impl.store.raw.xact.Xact.openDroppedContainer(Xact.java:1298)
>         at org.apache.derby.impl.store.raw.data.ContainerBasicOperation.findContainer(ContainerBasicOperation.java:144)
>         at org.apache.derby.impl.store.raw.data.ContainerBasicOperation.needsRedo(ContainerBasicOperation.java:201)
>         at org.apache.derby.impl.store.raw.log.FileLogger.redo(FileLogger.java:1394)
>         at org.apache.derby.impl.store.raw.log.LogToFile.recover(LogToFile.java:802)
>         at org.apache.derby.impl.store.raw.RawStore.boot(RawStore.java:327)
>         at org.apache.derby.impl.services.monitor.BaseMonitor.boot(BaseMonitor.java:1999)
>         at org.apache.derby.impl.services.monitor.TopService.bootModule(TopService.java:290)
>         at org.apache.derby.impl.services.monitor.BaseMonitor.startModule(BaseMonitor.java:539)
>         at org.apache.derby.iapi.services.monitor.Monitor.bootServiceModule(Monitor.java:418)
>         at org.apache.derby.impl.store.access.RAMAccessManager.boot(RAMAccessManager.java:994)
>         at org.apache.derby.impl.services.monitor.BaseMonitor.boot(BaseMonitor.java:1999)
>         at org.apache.derby.impl.services.monitor.TopService.bootModule(TopService.java:290)
>         at org.apache.derby.impl.services.monitor.BaseMonitor.startModule(BaseMonitor.java:539)
>         at org.apache.derby.iapi.services.monitor.Monitor.bootServiceModule(Monitor.java:418)
>         at org.apache.derby.impl.db.BasicDatabase.bootStore(BasicDatabase.java:758)
>         at org.apache.derby.impl.db.BasicDatabase.boot(BasicDatabase.java:179)
>         at org.apache.derby.impl.services.monitor.BaseMonitor.boot(BaseMonitor.java:1999)
>         at org.apache.derby.impl.services.monitor.TopService.bootModule(TopService.java:290)
>         at org.apache.derby.impl.services.monitor.BaseMonitor.bootService(BaseMonitor.java:1846)
>         at org.apache.derby.impl.services.monitor.BaseMonitor.startProviderService(BaseMonitor.java:1712)
>         at org.apache.derby.impl.services.monitor.BaseMonitor.findProviderAndStartService(BaseMonitor.java:1591)
>         at org.apache.derby.impl.services.monitor.BaseMonitor.startPersistentService(BaseMonitor.java:996)
>         at org.apache.derby.impl.services.monitor.BaseMonitor.startPersistentService(BaseMonitor.java:988)
>         at org.apache.derby.iapi.services.monitor.Monitor.startPersistentService(Monitor.java:533)
>         at org.apache.derby.impl.jdbc.EmbedConnection.bootDatabase(EmbedConnection.java:1555)
>         at org.apache.derby.impl.jdbc.EmbedConnection.<init>(EmbedConnection.java:200)
>         at org.apache.derby.jdbc.Driver30.getNewEmbedConnection(Driver30.java:73)
>         at org.apache.derby.jdbc.InternalDriver.connect(InternalDriver.java:187)
>         at java.sql.DriverManager.getConnection(DriverManager.java:562)
>         at java.sql.DriverManager.getConnection(DriverManager.java:208)
>         at ReproNPEOnLowFD.main(ReproNPEOnLowFD.java:11)
> Exception in thread "main" SQL Exception: Failed to start database 'wombat', see the
next exception for details.
>         at org.apache.derby.impl.jdbc.Util.newEmbedSQLException(Util.java:80)
>         at org.apache.derby.impl.jdbc.Util.newEmbedSQLException(Util.java:87)
>         at org.apache.derby.impl.jdbc.Util.generateCsSQLException(Util.java:166)
>         at org.apache.derby.impl.jdbc.EmbedConnection.newSQLException(EmbedConnection.java:1912)
>         at org.apache.derby.impl.jdbc.EmbedConnection.bootDatabase(EmbedConnection.java:1572)
>         at org.apache.derby.impl.jdbc.EmbedConnection.<init>(EmbedConnection.java:200)
>         at org.apache.derby.jdbc.Driver30.getNewEmbedConnection(Driver30.java:73)
>         at org.apache.derby.jdbc.InternalDriver.connect(InternalDriver.java:187)
>         at java.sql.DriverManager.getConnection(DriverManager.java:562)
>         at java.sql.DriverManager.getConnection(DriverManager.java:208)
>         at ReproNPEOnLowFD.main(ReproNPEOnLowFD.java:11)

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