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https://issues.apache.org/jira/browse/CASSANDRA-11154?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15224916#comment-15224916
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Aleksey Yeschenko commented on CASSANDRA-11154:
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Thanks for the stack trace. You almost guessed the issue, but not quite. It's 
just that old schema tables (system.schema_*) are unloaded from memory by then. 
The easiest fix would be to check if system.schema_* tables are in {{Schema}} 
and not attempt if they aren't.

None of it is a problem for Cassandra-proper, it really works as it's designed 
to. C* is not *really* built for being embeddable, so there have to be many 
issues like that in embedded mode. That said, I can put in an easy fix for just 
this one problem (but you'll have to test the patch).

> CassandraDaemon in Managed mode fails to be restartable
> -------------------------------------------------------
>
>                 Key: CASSANDRA-11154
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-11154
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Achim Nierbeck
>             Fix For: 3.x
>
>         Attachments: CASSANDRA-11154_patch.txt
>
>
> Restarting the CassandraDeamon in managed mode fails to restart due to 
> duplicate migration of already migrated keyspaces. 
> To reproduce this, just do something like in this test class: 
> https://github.com/ANierbeck/Karaf-Cassandra/blob/master/Karaf-Cassandra-Embedded/src/test/java/de/nierbeck/cassandra/embedded/TestEmbedded.java



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