Of course you get OOME if you use memory only database and your data size plus overheads exceeds heap.

Dne 8.11.2011 23:44 "Pavel Bortnovskiy" <pbortnovskiy@jefferies.com> napsal(a):
Is it unusual that Derby (used in-memory only) seems to throw an out of memory exception when executing 180,000 batched insert statements?
(The JVM was started with -Xms1024m -Xmx2048m):

Caused by: java.sql.SQLException: Java exception: 'GC overhead limit exceeded: java.lang.OutOfMemoryError'.
   at org.apache.derby.impl.jdbc.SQLExceptionFactory40.getSQLException(Unknown Source)
   at org.apache.derby.impl.jdbc.Util.newEmbedSQLException(Unknown Source)
   at org.apache.derby.impl.jdbc.Util.javaException(Unknown Source)
   at org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQLException(Unknown Source)
   at org.apache.derby.impl.jdbc.EmbedResultSet.noStateChangeException(Unknown Source)
   at org.apache.derby.impl.jdbc.EmbedPreparedStatement.setDate(Unknown Source)
   at org.apache.derby.impl.jdbc.EmbedPreparedStatement.setDate(Unknown Source)
   at org.apache.derby.iapi.types.SQLDate.setInto(Unknown Source)
   at org.apache.derby.impl.jdbc.EmbedPreparedStatement.executeBatchElement(Unknown Source)

Are there memory limitations for Derby running in the in-memory only mode?
Is there anything that can be done to avoid getting such errors?

Thanks,
Pavel.


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