Hi,
I make some first experiments with Hibernate 3.1 and MaxDB 7.5.0.19.
Everything works fine, but after some period of time I get an exception
saying:
ERROR [03.01.2006 00:13:20] (JDBCExceptionReporter.java:72) - [-708] Timeout
org.hibernate.exception.JDBCConnectionException: could not execute query
at
org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:72)
at
org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
at org.hibernate.loader.Loader.doList(Loader.java:2153)
[...]
Caused by: com.sap.dbtech.jdbc.exceptions.ConnectionException: [-708] Timeout
at com.sap.dbtech.jdbc.ConnectionSapDB.execute(ConnectionSapDB.java:472)
at
com.sap.dbtech.jdbc.CallableStatementSapDB.sendCommand(CallableStatementSapDB.java:1646)
at com.sap.dbtech.jdbc.StatementSapDB.sendSQL(StatementSapDB.java:783)
at
com.sap.dbtech.jdbc.CallableStatementSapDB.doParse(CallableStatementSapDB.java:234)
at
com.sap.dbtech.jdbc.CallableStatementSapDB.constructor(CallableStatementSapDB.java:185)
at
com.sap.dbtech.jdbc.CallableStatementSapDB.<init>(CallableStatementSapDB.java:87)
at
com.sap.dbtech.jdbc.ConnectionSapDB.prepareStatement(ConnectionSapDB.java:721)
at
org.hibernate.jdbc.AbstractBatcher.getPreparedStatement(AbstractBatcher.java:442)
at
org.hibernate.jdbc.AbstractBatcher.getPreparedStatement(AbstractBatcher.java:368)
at
org.hibernate.jdbc.AbstractBatcher.prepareQueryStatement(AbstractBatcher.java:105)
at org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1561)
at org.hibernate.loader.Loader.doQuery(Loader.java:661)
at
org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:224)
at org.hibernate.loader.Loader.doList(Loader.java:2150)
What is happening here? The last entries in knldiag look like this:
2006-01-02 22:12:40 11737 11580 COMMUNIC e84_find: UKT7 T85 conn
1136236331 'Command wait '
2006-01-02 22:12:40 11737 11580 COMMUNIC e84_find: UKT7 T86 conn
1136236331 'Command wait '
2006-01-02 22:12:40 11737 WNG 11832 COMMUNIC rejecting request
2006-01-02 22:12:40 11737 WNG 11837 COMMUNIC ALL are busy (in all UKTs)
2006-01-02 22:12:40 11737 11580 COMMUNIC e84_find: UKT5 T20 conn 0
'Connect wait '
2006-01-02 22:12:40 11737 11580 COMMUNIC e84_find: UKT3 T36 conn 0
'Connect wait '
2006-01-02 22:12:40 11737 11580 COMMUNIC e84_find: UKT7 T37 conn
1136235733 'Command wait '
2006-01-02 22:12:40 11737 11580 COMMUNIC e84_find: UKT7 T38 conn
1136235733 'Command wait '
Any ideas what's going wrong?
Thanks in advance,
Ralf.
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