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From "Knut Anders Hatlen (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (DERBY-4275) Query executions fail when compressing a table using SYSCS_UTIL.SYSCS_COMPRESS_TABLE
Date Fri, 29 Jul 2011 10:15:14 GMT

     [ https://issues.apache.org/jira/browse/DERBY-4275?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Knut Anders Hatlen updated DERBY-4275:
--------------------------------------

    Issue & fix info: [High Value Fix, Patch Available, Repro attached]  (was: [Repro
attached, High Value Fix])

All the regression tests ran cleanly with the npe.diff patch. The patch doesn't have a regression
test case, as I don't have a reliable way to reproduce the NPE in reasonable time. I do think
however that it can happen in the existing tests CompressTableTest and TruncateTableTest when
the timing is right.

> Query executions fail when compressing a table using SYSCS_UTIL.SYSCS_COMPRESS_TABLE
> ------------------------------------------------------------------------------------
>
>                 Key: DERBY-4275
>                 URL: https://issues.apache.org/jira/browse/DERBY-4275
>             Project: Derby
>          Issue Type: Bug
>          Components: Store
>    Affects Versions: 10.4.1.3
>            Reporter: Sai Pullabhotla
>            Assignee: Knut Anders Hatlen
>              Labels: derby_triage10_5_2
>             Fix For: 10.8.1.6, 10.9.0.0
>
>         Attachments: CompressDBTest1.java, CompressDBTest2.java, D4275.java, d4275-1a.diff,
invalidate-after.diff, invalidation-during-compilation.diff, npe.diff
>
>
> Query executions (SELECT and/or UPDATE) fail with serious exceptions while the table
is being compressed using SYSCS_UTIL.SYSCS_COMPRESS_ TABLE. The compression eventually finishes
normally, but the queries keep failing with the same error until the database is rebooted.
More information about this can be found on the Derby mailing list at http://www.nabble.com/Issue-with-SYSCS_UTIL.SYSCS_COMPRESS_-TABLE-td23892893.html.
The exception stacktrace is below: 
> Caused by: java.sql.SQLException: The conglomerate (71,409) requested does not exist.
>             at org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(Unknown
Source)
>             at org.apache.derby.impl.jdbc.Util.generateCsSQLException(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.EmbedPreparedStatement.executeStatement(Unknown
Source)
>             at org.apache.derby.impl.jdbc.EmbedPreparedStatement.executeQuery(Unknown
Source)
>             at org.apache.tomcat.dbcp.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:93)
>             ... 25 more
>         Caused by: ERROR XSAI2: The conglomerate (71,409) requested does not exist.
>             at org.apache.derby.iapi.error.StandardException.newException(Unknown Source)
>             at org.apache.derby.impl.store.access.btree.index.B2IFactory.readConglomerate(Unknown
Source)
>             at org.apache.derby.impl.store.access.RAMAccessManager.conglomCacheFind(Unknown
Source)
>             at org.apache.derby.impl.store.access.RAMTransaction.findExistingConglomerate(Unknown
Source)
>             at org.apache.derby.impl.store.access.RAMTransaction.openScan(Unknown Source)
>             at org.apache.derby.impl.store.access.BackingStoreHashTableFromScan.<init>(Unknown
Source)
>             at org.apache.derby.impl.store.access.RAMTransaction.createBackingStoreHashtableFromScan(Unknown
Source)
>             at org.apache.derby.impl.sql.execute.HashScanResultSet.openCore(Unknown Source)
>             at org.apache.derby.impl.sql.execute.JoinResultSet.openRight(Unknown Source)
>             at org.apache.derby.impl.sql.execute.JoinResultSet.openCore(Unknown Source)
>             at org.apache.derby.impl.sql.execute.JoinResultSet.openCore(Unknown Source)
>             at org.apache.derby.impl.sql.execute.ProjectRestrictResultSet.openCore(Unknown
Source)
>             at org.apache.derby.impl.sql.execute.UnionResultSet.getNextRowCore(Unknown
Source)
>             at org.apache.derby.impl.sql.execute.SortResultSet.getRowFromResultSet(Unknown
Source)
>             at org.apache.derby.impl.sql.execute.SortResultSet.getNextRowFromRS(Unknown
Source)
>             at org.apache.derby.impl.sql.execute.SortResultSet.loadSorter(Unknown Source)
>             at org.apache.derby.impl.sql.execute.SortResultSet.openCore(Unknown Source)
>             at org.apache.derby.impl.sql.execute.SortResultSet.openCore(Unknown Source)
>             at org.apache.derby.impl.sql.execute.BasicNoPutResultSetImpl.open(Unknown
Source)
>             at org.apache.derby.impl.sql.GenericPreparedStatement.execute(Unknown Source)


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