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From Tomek Rękawek (JIRA) <j...@apache.org>
Subject [jira] [Created] (OAK-4082) Don't pool prepared statements using lists
Date Wed, 02 Mar 2016 12:33:18 GMT
Tomek Rękawek created OAK-4082:
----------------------------------

             Summary: Don't pool prepared statements using lists
                 Key: OAK-4082
                 URL: https://issues.apache.org/jira/browse/OAK-4082
             Project: Jackrabbit Oak
          Issue Type: Bug
          Components: rdbmk
            Reporter: Tomek Rękawek
             Fix For: 1.4, 1.6


In the RDBDocumentStoreJDBC we should invoke {{setPoolable(false)}} on all prepared statements
containing a list of ids. Otherwise we can get exceptions like this:

{noformat}
15:45:58 Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Can't create
more than max_prepared_stmt_count statements (current value: 16382)
15:45:58 	at sun.reflect.GeneratedConstructorAccessor23.newInstance(Unknown Source)
15:45:58 	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
15:45:58 	at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
15:45:58 	at com.mysql.jdbc.Util.handleNewInstance(Util.java:400)
15:45:58 	at com.mysql.jdbc.Util.getInstance(Util.java:383)
15:45:58 	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:980)
15:45:58 	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3847)
15:45:58 	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3783)
15:45:58 	at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2447)
15:45:58 	at com.mysql.jdbc.ServerPreparedStatement.serverPrepare(ServerPreparedStatement.java:1514)
15:45:58 	at com.mysql.jdbc.ServerPreparedStatement.<init>(ServerPreparedStatement.java:389)
15:45:58 	at com.mysql.jdbc.ServerPreparedStatement.prepareBatchedInsertSQL(ServerPreparedStatement.java:2832)
15:45:58 	at com.mysql.jdbc.PreparedStatement.executeBatchedInserts(PreparedStatement.java:1524)
15:45:58 	at com.mysql.jdbc.PreparedStatement.executeBatch(PreparedStatement.java:1262)
15:45:58 	at org.apache.jackrabbit.oak.plugins.document.rdb.RDBDocumentStoreJDBC.insert(RDBDocumentStoreJDBC.java:302)
15:45:58 	at org.apache.jackrabbit.oak.plugins.document.rdb.RDBDocumentStoreJDBC.update(RDBDocumentStoreJDBC.java:446)
15:45:58 	at org.apache.jackrabbit.oak.plugins.document.rdb.RDBDocumentStore.bulkUpdate(RDBDocumentStore.java:456)
15:45:58 	... 21 more
{noformat}



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