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From "V.Narayanan (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-3358) After an incorrect(unsuccesfull) startMaster comand, further correct startMaster attempts also fail.
Date Thu, 28 Feb 2008 04:21:52 GMT

    [ https://issues.apache.org/jira/browse/DERBY-3358?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12573145#action_12573145
] 

V.Narayanan commented on DERBY-3358:
------------------------------------

>Thanks, for your patch Narayanan. I tried testing the patch, but the
>bug reported in DERBY-3454 seems to get in the way.

You are correct. Every wrong connection attempt keeps throwing a
NPE. But when the correct port is mentioned the connection succeeds.
If the earlier bug, reported in this patch, had existed it would not have
succeeded, but would have continued with the NPE's.

> 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
>            Assignee: V.Narayanan
>         Attachments: Derby3358.diff, Derby3358.stat, Derby3358_v2.diff, Derby3358_v2.stat
>
>
> 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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