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Date: Thu, 21 Jul 2016 16:53:20 +0000 (UTC)
From: "Aleksey Yeschenko (JIRA)" <jira@apache.org>
To: commits@cassandra.apache.org
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Subject: [jira] [Updated] (CASSANDRA-12236) RTE from new CDC column breaks
 in flight queries.
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archived-at: Thu, 21 Jul 2016 16:53:22 -0000


     [ https://issues.apache.org/jira/browse/CASSANDRA-12236?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Aleksey Yeschenko updated CASSANDRA-12236:
------------------------------------------
    Reviewer: Aleksey Yeschenko  (was: Sylvain Lebresne)

> RTE from new CDC column breaks in flight queries.
> -------------------------------------------------
>
>                 Key: CASSANDRA-12236
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-12236
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Jeremiah Jordan
>            Assignee: Joshua McKenzie
>             Fix For: 3.x
>
>         Attachments: 12236.txt
>
>
> This RTE is not harmless. It will cause the internode connection to break which will cause all in flight requests between these nodes to die/timeout.
> {noformat}
>     - Due to changes in schema migration handling and the storage format after 3.0, you will
>       see error messages such as:
>          "java.lang.RuntimeException: Unknown column cdc during deserialization"
>       in your system logs on a mixed-version cluster during upgrades. This error message
>       is harmless and due to the 3.8 nodes having cdc added to their schema tables while
>       the <3.8 nodes do not. This message should cease once all nodes are upgraded to 3.8.
>       As always, refrain from schema changes during cluster upgrades.
> {noformat}


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