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From Nitan Kainth <nitankai...@gmail.com>
Subject Re: Datafile Corruption
Date Wed, 07 Aug 2019 19:50:58 GMT
Repair during upgrade have caused corruption too.

Also, dropping and adding columns with same name but different type


Regards,
Nitan
Cell: 510 449 9629

> On Aug 7, 2019, at 2:42 PM, Jeff Jirsa <jjirsa@gmail.com> wrote:
> 
> Is compression enabled?
> 
> If not, bit flips on disk can corrupt data files and reads + repair may send that corruption
to other hosts in the cluster 
> 
> 
>> On Aug 7, 2019, at 3:46 AM, Philip Ó Condúin <philipoconduin@gmail.com> wrote:
>> 
>> Hi All,
>> 
>> I am currently experiencing multiple datafile corruptions across most nodes in my
cluster, there seems to be no pattern to the corruption.  I'm starting to think it might be
a bug, we're using Cassandra 2.2.13.
>> 
>> Without going into detail about the issue I just want to confirm something.
>> 
>> Can someone share with me a list of scenarios that would cause corruption?
>> 
>> 1. OS failure
>> 2. Cassandra disturbed during the writing 
>> 
>> etc etc.
>> 
>> I need to investigate each scenario and don't want to leave any out.
>> 
>> -- 
>> Regards,
>> Phil

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