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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 Wed, 27 Feb 2008 06:10:51 GMT

    [ https://issues.apache.org/jira/browse/DERBY-3358?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12572800#action_12572800
] 

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

>boot():  An explanation of why boot is empty would be good.

>It seems to be more a documentation of the change that is made
>than of the resulting code, and I fear that it may confuse
>people who do not know the history of the code

In order to explain why the boot method is empty I would need to
explain why the change was made (i.e.) mention that the boot
method is loaded only once and because of that the boot time
parameters once wrong would result in repeated startMaster attempts
failing.

I would in doing the above be contradicting the comment change
requested in the latter part of the comment I have pasted.

Or again I am making a mistake of not wording the comments correctly.
Can you please help me with your view of what you think would be a 
right wording of the comments here?

> 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
>
>
> 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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