Running out of file descriptors on recovery can give NullPointerException.
Should give clearer message
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Key: DERBY-3976
URL: https://issues.apache.org/jira/browse/DERBY-3976
Project: Derby
Issue Type: Bug
Components: Store
Affects Versions: 10.4.2.0, 10.3.3.0, 10.2.2.0, 10.1.3.1, 10.5.0.0
Reporter: Kathey Marsden
Priority: Minor
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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