When table contains large LOB values (> ~32K) trigger execution fails for that row with ERROR XCL30: An IOException was thrown when reading a 'BLOB'

• Key: DERBY-3238
• Type: Bug
• Status: Closed
• Resolution: Fixed
• Priority: Major
• Assignee: Kathey Marsden
• Reporter: Stan Bradbury
• Component/s: SQL
• Affects Version/s: 10.1.3.1, 10.2.2.0, 10.3.1.4, 10.3.2.1, 10.4.1.3
• Fix Version/s: 10.1.3.2, 10.2.2.1, 10.3.3.0, 10.4.1.3

Description

See attached test case.
At execution/run-time a trigger that handles a row that contains a large LOB value will fail with the following error and stack trace:
 = = =
Testing blob of size=1024

 . . Now executing update to fire the trigger
PASSED
Testing blob of size=16384

 . . Now executing update to fire the trigger
PASSED
Testing blob of size=32658

 . . Now executing update to fire the trigger
PASSED
Testing blob of size=32659

 . . Now executing update to fire the trigger
Error! java.sql.SQLException: An IOException was thrown when reading a 'BLOB' from an InputStream.
java.sql.SQLException: An IOException was thrown when reading a 'BLOB' from an InputStream.
        at org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(Unknown Source)
        at org.apache.derby.impl.jdbc.Util.newEmbedSQLException(Unknown Source)
        at org.apache.derby.impl.jdbc.Util.seeNextException(Unknown Source)
        at org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQLException(Unknown Source)
        at org.apache.derby.impl.jdbc.TransactionResourceImpl.handleException(Unknown Source)
        at org.apache.derby.impl.jdbc.EmbedConnection.handleException(Unknown Source)
        at org.apache.derby.impl.jdbc.ConnectionChild.handleException(Unknown Source)
        at org.apache.derby.impl.jdbc.EmbedStatement.executeStatement(Unknown Source)
        at org.apache.derby.impl.jdbc.EmbedStatement.execute(Unknown Source)
        at org.apache.derby.impl.jdbc.EmbedStatement.executeUpdate(Unknown Source)
        at blob_insert2.testBlob(blob_insert2.java:102)
        at blob_insert2.main(blob_insert2.java:55)
Caused by: java.sql.SQLException: Java exception: ': java.io.EOFException'.
        at org.apache.derby.impl.jdbc.SQLExceptionFactory.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)
        ... 9 more
Caused by: java.io.EOFException
        at org.apache.derby.iapi.types.SQLBinary.readBinaryLength(Unknown Source)
        at org.apache.derby.iapi.types.SQLBinary.readExternal(Unknown Source)
        at org.apache.derby.iapi.types.SQLBinary.getValue(Unknown Source)
        at org.apache.derby.iapi.types.SQLBinary.loadStream(Unknown Source)
        at org.apache.derby.impl.sql.execute.UpdateResultSet.objectifyStream(Unknown Source)
        at org.apache.derby.impl.sql.execute.UpdateResultSet.collectAffectedRows(Unknown Source)
        at org.apache.derby.impl.sql.execute.UpdateResultSet.open(Unknown Source)
        at org.apache.derby.impl.sql.GenericPreparedStatement.execute(Unknown Source)
        ... 5 more