cassandra-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From graham sanderson <gra...@vast.com>
Subject Re: What are problems with schema disagreement
Date Fri, 03 Jul 2015 03:01:22 GMT
What version of C* are you running? Some versions of 2.0.x might occasionally fail to propagate
schema changes in a timely fashion (though they would fix themselves eventually - in the order
of a few minutes)

> On Jul 2, 2015, at 9:37 PM, John Wong <gokoproject@gmail.com> wrote:
> 
> Hi.
> 
> Here is a schema disagreement we encountered.
> Schema versions:
>         b6467059-5897-3cc1-9ee2-73f31841b0b0: [10.0.1.100, 10.0.1.109]
>         c8971b2d-0949-3584-aa87-0050a4149bbd: [10.0.1.55, 10.0.1.16, 10.0.1.77]
>         c733920b-2a31-30f0-bca1-45a8c9130a2c: [10.0.1.221]
> 
> We deployed an application which would send a schema update (DDL=auto). We found this
prod cluster had 3 schema difference. Other existing applications were fine, so some people
were curious what if we left this problem alone until off hours.
> 
> Is there any concerns with not resolve schema disagreement right away? FWIW we went ahead
and restarted 221 first, and continue with the rest of the minors.
> 
> Thanks.
> 
> John
> 


Mime
View raw message