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From Fabien Rousseau <fab...@yakaz.com>
Subject Re: Errors while upgrading from 1.1.10 version to 1.2.4 version
Date Fri, 28 Jun 2013 08:35:16 GMT
Hello,

Have a look at : https://issues.apache.org/jira/browse/CASSANDRA-5476


2013/6/28 Ananth Gundabattula <agundabattula@threatmetrix.com>

> Hello Everybody,
>
> We were performing an upgrade of our cluster from 1.1.10 version to 1.2.4
> . We tested the upgrade process in a QA environment and found no issues.
> However in the production node, we faced loads of errors and had to abort
> the upgrade process.
>
> I was wondering how we ran into such a situation. The main difference
> between the QA environment and the production environments is the
> Replication Factor. In QA , RF=1 and in production RF=3.
>
> Example stack traces are  as seen on the other nodes are :
> http://pastebin.com/fSnMAd8q
>
> The other observation is that the node which was being upgraded is a seed
> node in the 1.1.10. We aborted right after the first node gave the above
> issues. Does this mean that there will be an application downtime required
> if we go for rolling upgrade on a live cluster from 1.1.10 version to 1.2.4
> version ?
>
> Regards,
> Ananth
>
>
>
>
>


-- 
Fabien Rousseau
*
*
 <aurore@yakaz.com>www.yakaz.com

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