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https://issues.apache.org/jira/browse/DERBY-3552?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12584011#action_12584011
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V.Narayanan commented on DERBY-3552:
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Kim says
>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.
Narayanan says (in an earlier comment)
>This would mean that allowing jar file operations during deletion would result
>in the system catalog table on the slave having a reference to the jar file
>that
>does not exist in the replicated database
So even if you do not do an install the derby system will assume the jar to be
present and calling
a function that depends on the jar would result in (from an earlier run posted
in the comments)
>ij> values myInc (5,10);
>ERROR 42X51: The class 'MyMathFuncs' does not exist or is inaccessible. This
>can happen if the class is not public.
>ERROR XJ001: Java exception: 'MyMathFuncs: java.lang.ClassNotFoundException'.
Hence you need to replace, remove/install to modify the earlier system catalog
entry for that jar.
> 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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