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https://issues.apache.org/jira/browse/DERBY-3552?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12583814#action_12583814
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Kim Haase commented on DERBY-3552:
----------------------------------

Thanks, Oystein, that helps! I think I get it now. Sorry to be so dim. Clients 
are using the master database and not the slave, so it generally doesn't matter 
if the jar files are installed on the slave or not -- until a failover is 
needed.

In that case, though, going back to Narayanan's comment of March 30 --

"To ensure that the jars are installed correctly on both systems, after a 
failover, install the jars on the slave system (using either sqlj.remove_jar 
followed by sqlj.install_jar, or sqlj.replace_jar)" 

Why would you need to do a replace, or a remove/install, on the slave? If the 
jars are not installed on the slave, I would think you would just do an 
install. 


> Handle jar files that are installed when replication is enabled
> ---------------------------------------------------------------
>
>                 Key: DERBY-3552
>                 URL: https://issues.apache.org/jira/browse/DERBY-3552
>             Project: Derby
>          Issue Type: Sub-task
>          Components: Replication
>    Affects Versions: 10.4.0.0, 10.5.0.0
>            Reporter: V.Narayanan
>


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