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From Daniel Patterson <dan...@danpat.net>
Subject Re: IO Errors from the journal?
Date Wed, 22 Nov 2006 17:05:32 GMT
Daniel Patterson wrote:
>> I've turned off persistance "<broker persistance="false">" and that 
>> makes this problem go away, but
>> the broker then uses large amounts of memory, seemingly uncapped.  
>> I've moved this process to
>> a directory on local disk and re-enabled persistence, and the problem 
>> returns.

  I've also turned on debug, and it reveals a little bit more 
information.  Just prior to the IOException: Not started
  error, another exception is thrown by the JDBCPersistenceAdapter:

2006-11-22 08:37:24,880 [eckpoint worker] DEBUG 
JDBCPersistenceAdapter         - Commit failed: A truncation error was 
encountered trying to shrink BLOB 'XX-RESOLVE-XX' to length 1048576., 
due to: A truncation error was encountered trying to shrink BLOB 
'XX-RESOLVE-XX' to length 1048576.
ERROR 22001: A truncation error was encountered trying to shrink BLOB 
'XX-RESOLVE-XX' to length 1048576.
        at 
org.apache.derby.iapi.error.StandardException.newException(Unknown Source)
        at 
org.apache.derby.iapi.types.SQLBinary.checkHostVariable(Unknown Source)
        at 
org.apache.derby.exe.ac38c30028x010fx1048xc115xffff840419a80.e0(Unknown 
Source)
        at 
org.apache.derby.impl.services.reflect.DirectCall.invoke(Unknown Source)
        at 
org.apache.derby.impl.sql.execute.RowResultSet.getNextRowCore(Unknown 
Source)
        at 
org.apache.derby.impl.sql.execute.NormalizeResultSet.getNextRowCore(Unknown 
Source)
        at 
org.apache.derby.impl.sql.execute.DMLWriteResultSet.getNextRowCore(Unknown 
Source)
        at 
org.apache.derby.impl.sql.execute.InsertResultSet.open(Unknown Source)
        at 
org.apache.derby.impl.sql.GenericPreparedStatement.execute(Unknown Source)
        at 
org.apache.derby.impl.jdbc.EmbedStatement.executeStatement(Unknown Source)
        at 
org.apache.derby.impl.jdbc.EmbedPreparedStatement.executeBatchElement(Unknown 
Source)
        at 
org.apache.derby.impl.jdbc.EmbedStatement.executeBatch(Unknown Source)
        at 
org.apache.activemq.store.jdbc.TransactionContext.executeBatch(TransactionContext.java:96)
        at 
org.apache.activemq.store.jdbc.TransactionContext.executeBatch(TransactionContext.java:75)
        at 
org.apache.activemq.store.jdbc.TransactionContext.commit(TransactionContext.java:154)
        at 
org.apache.activemq.store.jdbc.JDBCPersistenceAdapter.commitTransaction(JDBCPersistenceAdapter.java:363)
        at 
org.apache.activemq.store.journal.JournalPersistenceAdapter.commitTransaction(JournalPersistenceAdapter.java:193)
        at 
org.apache.activemq.store.journal.JournalMessageStore$3.execute(JournalMessageStore.java:271)
        at 
org.apache.activemq.util.TransactionTemplate.run(TransactionTemplate.java:44)
        at 
org.apache.activemq.store.journal.JournalMessageStore.checkpoint(JournalMessageStore.java:247)
        at 
org.apache.activemq.store.journal.JournalTopicMessageStore.checkpoint(JournalTopicMessageStore.java:162)
        at 
org.apache.activemq.store.journal.JournalPersistenceAdapter$5.call(JournalPersistenceAdapter.java:373)
        at 
edu.emory.mathcs.backport.java.util.concurrent.FutureTask.run(FutureTask.java:176)
        at 
edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650)
        at 
edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:675)
        at java.lang.Thread.run(Thread.java:595)
2006-11-22 08:37:24,881 [eckpoint Worker] ERROR 
JournalPersistenceAdapter      - Failed to checkpoint a message store: 
edu.emory.mathcs.backport.java.util.concurrent.ExecutionException: 
java.io.IOException: Not started.
edu.emory.mathcs.backport.java.util.concurrent.ExecutionException: 
java.io.IOException: Not started.
        at 
edu.emory.mathcs.backport.java.util.concurrent.FutureTask.getResult(FutureTask.java:299)
        at 
edu.emory.mathcs.backport.java.util.concurrent.FutureTask.get(FutureTask.java:118)
        at 
org.apache.activemq.store.journal.JournalPersistenceAdapter.doCheckpoint(JournalPersistenceAdapter.java:386)
        at 
org.apache.activemq.store.journal.JournalPersistenceAdapter$2.iterate(JournalPersistenceAdapter.java:129)
        at 
org.apache.activemq.thread.DedicatedTaskRunner.runTask(DedicatedTaskRunner.java:88)
        at 
org.apache.activemq.thread.DedicatedTaskRunner.access$000(DedicatedTaskRunner.java:25)
        at 
org.apache.activemq.thread.DedicatedTaskRunner$1.run(DedicatedTaskRunner.java:39)
Caused by: java.io.IOException: Not started.
        at 
org.apache.activemq.store.jdbc.TransactionContext.rollback(TransactionContext.java:168)
        at 
org.apache.activemq.store.jdbc.JDBCPersistenceAdapter.rollbackTransaction(JDBCPersistenceAdapter.java:368)
        at 
org.apache.activemq.store.journal.JournalPersistenceAdapter.rollbackTransaction(JournalPersistenceAdapter.java:197)
        at 
org.apache.activemq.util.TransactionTemplate.run(TransactionTemplate.java:62)
        at 
org.apache.activemq.store.journal.JournalMessageStore.checkpoint(JournalMessageStore.java:247)
        at 
org.apache.activemq.store.journal.JournalTopicMessageStore.checkpoint(JournalTopicMessageStore.java:162)
        at 
org.apache.activemq.store.journal.JournalPersistenceAdapter$5.call(JournalPersistenceAdapter.java:373)
        at 
edu.emory.mathcs.backport.java.util.concurrent.FutureTask.run(FutureTask.java:176)

  Looks like a derby bug?  I don't have the flexibility ot setup any 
other JDBC store, what other options are there?

daniel

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