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https://issues.apache.org/jira/browse/DERBY-3358?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12563458#action_12563458
]
Ole Solberg commented on DERBY-3358:
------------------------------------
If in this state we do a stopMaster command a NPE is thrown:
CONNECT 'jdbc:derby://atum11:8888/test;stopMaster=true';
ERROR XJ001: DERBY SQL error: SQLCODE: -1, SQLSTATE: XJ001, SQLERRMC:
java.lang.NullPointerExceptionXJ001.U
master derby.log:
2008-01-29 10:24:07.228 GMT Thread[DRDAConnThread_4,5,main] (XID = 423),
(SESSIONID = 4), (DATABASE = test), (DRDAID = {6}), Cleanup action starting
java.lang.NullPointerException
at
org.apache.derby.impl.services.replication.master.MasterController.stopMaster(MasterController.java:213)
at
org.apache.derby.impl.store.raw.RawStore.stopReplicationMaster(RawStore.java:526)
at
org.apache.derby.impl.store.access.RAMAccessManager.stopReplicationMaster(RAMAccessManager.java:938)
at
org.apache.derby.impl.db.BasicDatabase.stopReplicationMaster(BasicDatabase.java:388)
at
org.apache.derby.impl.jdbc.EmbedConnection.handleStopReplicationMaster(EmbedConnection.java:683)
at
org.apache.derby.impl.jdbc.EmbedConnection.<init>(EmbedConnection.java:344)
at
org.apache.derby.impl.jdbc.EmbedConnection30.<init>(EmbedConnection30.java:73)
at
org.apache.derby.impl.jdbc.EmbedConnection40.<init>(EmbedConnection40.java:54)
at
org.apache.derby.jdbc.Driver40.getNewEmbedConnection(Driver40.java:68)
at org.apache.derby.jdbc.InternalDriver.connect(InternalDriver.java:211)
at
org.apache.derby.jdbc.AutoloadedDriver.connect(AutoloadedDriver.java:119)
at org.apache.derby.impl.drda.Database.makeConnection(Database.java:234)
at
org.apache.derby.impl.drda.DRDAConnThread.getConnFromDatabaseName(DRDAConnThread.java:1346)
at
org.apache.derby.impl.drda.DRDAConnThread.verifyUserIdPassword(DRDAConnThread.java:1296)
at
org.apache.derby.impl.drda.DRDAConnThread.parseSECCHK(DRDAConnThread.java:3033)
at
org.apache.derby.impl.drda.DRDAConnThread.parseDRDAConnection(DRDAConnThread.java:1090)
at
org.apache.derby.impl.drda.DRDAConnThread.processCommands(DRDAConnThread.java:932)
at
org.apache.derby.impl.drda.DRDAConnThread.run(DRDAConnThread.java:277)
Cleanup action completed
2008-01-29 10:24:07.228 GMT Thread[DRDAConnThread_4,5,main] Cleanup action
starting
java.lang.NullPointerException
at
org.apache.derby.impl.services.replication.master.MasterController.stopMaster(MasterController.java:213)
at
org.apache.derby.impl.store.raw.RawStore.stopReplicationMaster(RawStore.java:526)
at
org.apache.derby.impl.store.access.RAMAccessManager.stopReplicationMaster(RAMAccessManager.java:938)
at
org.apache.derby.impl.db.BasicDatabase.stopReplicationMaster(BasicDatabase.java:388)
at
org.apache.derby.impl.jdbc.EmbedConnection.handleStopReplicationMaster(EmbedConnection.java:683)
at
org.apache.derby.impl.jdbc.EmbedConnection.<init>(EmbedConnection.java:344)
at
org.apache.derby.impl.jdbc.EmbedConnection30.<init>(EmbedConnection30.java:73)
at
org.apache.derby.impl.jdbc.EmbedConnection40.<init>(EmbedConnection40.java:54)
at
org.apache.derby.jdbc.Driver40.getNewEmbedConnection(Driver40.java:68)
at org.apache.derby.jdbc.InternalDriver.connect(InternalDriver.java:211)
at
org.apache.derby.jdbc.AutoloadedDriver.connect(AutoloadedDriver.java:119)
at org.apache.derby.impl.drda.Database.makeConnection(Database.java:234)
at
org.apache.derby.impl.drda.DRDAConnThread.getConnFromDatabaseName(DRDAConnThread.java:1346)
at
org.apache.derby.impl.drda.DRDAConnThread.verifyUserIdPassword(DRDAConnThread.java:1296)
at
org.apache.derby.impl.drda.DRDAConnThread.parseSECCHK(DRDAConnThread.java:3033)
at
org.apache.derby.impl.drda.DRDAConnThread.parseDRDAConnection(DRDAConnThread.java:1090)
at
org.apache.derby.impl.drda.DRDAConnThread.processCommands(DRDAConnThread.java:932)
at
org.apache.derby.impl.drda.DRDAConnThread.run(DRDAConnThread.java:277)
Cleanup action completed
2008-01-29 10:24:07.231 GMT Thread[DRDAConnThread_4,5,main] (DATABASE = test),
(DRDAID = {6}), Java exception: ': java.lang.NullPointerException'.
> After an incorrect(unsuccesfull) startMaster comand, further correct
> startMaster attempts also fail.
> ----------------------------------------------------------------------------------------------------
>
> Key: DERBY-3358
> URL: https://issues.apache.org/jira/browse/DERBY-3358
> Project: Derby
> Issue Type: Bug
> Components: Replication
> Affects Versions: 10.4.0.0
> Environment: Trunk (615841) + patch DERBY-3205/stopSlave_v1b
> Reporter: Ole Solberg
>
> Slave and master servers started.
> startSlave:
> CONNECT
> 'jdbc:derby://atum11:9999/test;startSlave=true;slaveHost=atum11;slavePort=8989';
> ERROR XRE08: DERBY SQL error: SQLCODE: -1, SQLSTATE: XRE08, SQLERRMC:
> Replication slave mode started successfully for database 'test'. Connection
> refused because the database is in replication slave mode.
> startMaster without specifying slavePort - will use default?
> CONNECT 'jdbc:derby://atum11:8888/test;startMaster=true;slaveHost=atum11';
> ERROR XRE04: DERBY SQL error: SQLCODE: -1, SQLSTATE: XRE04, SQLERRMC:
> nullXRE04
> master derby.log:
> 2008-01-29 10:02:53.097 GMT:
> Booting Derby version The Apache Software Foundation - Apache Derby -
> 10.4.0.0 alpha - (615841M): instance c013800d-0117-c4fb-9156-000003bf6570
> on database directory
> /export/home/tmp/os136789/Replication_common_Trunk/master/test
> Database Class Loader started - derby.database.classpath=''
> 2008-01-29 10:02:53.256 GMT Thread[DRDAConnThread_2,5,main] (XID = 419),
> (SESSIONID = 0), (DATABASE = test), (DRDAID = {1}), Cleanup action starting
> java.sql.SQLException: Could not establish a connection to the peer of the
> replicated database 'null'.
> .
> .
> Cleanup action completed
> 2008-01-29 10:02:53.260 GMT Thread[DRDAConnThread_2,5,main] (DATABASE =
> test), (DRDAID = {1}), Could not establish a connection to the peer of the
> replicated database 'null'.
> startMaster specyfying slavePort:
> CONNECT
> 'jdbc:derby://atum11:8888/test;startMaster=true;slaveHost=atum11;slavePort=8989';
> ERROR XRE04: DERBY SQL error: SQLCODE: -1, SQLSTATE: XRE04, SQLERRMC:
> nullXRE04
> master derby.log:
> 2008-01-29 10:03:38.201 GMT Thread[DRDAConnThread_2,5,main] (XID = 420),
> (SESSIONID = 1), (DATABASE = test), (DRDAID = {2}), Cleanup action starting
> java.sql.SQLException: Could not establish a connection to the peer of the
> replicated database 'null'.
> .
> .
> Cleanup action completed
> 2008-01-29 10:03:38.205 GMT Thread[DRDAConnThread_2,5,main] (DATABASE =
> test), (DRDAID = {2}), Could not establish a connection to the peer of the
> replicated database 'null'.
> Additional observation/comment:
> ----------------------------------------
> It would be helpful for debugging if slaveHost and slavePort were written in
> error messages and into derby.log.
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