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From Eric Stevens <migh...@gmail.com>
Subject Re: columns disappearing intermittently
Date Wed, 03 Jul 2013 11:56:26 GMT
I wonder if one particular node is having trouble; when you notice the
missing column, what happens if you execute the read manually from cqlsh or
cassandra-cli independently directly on each node?


On Wed, Jul 3, 2013 at 2:00 AM, Blake Eggleston <blake@grapheffect.com>wrote:

> Hi All,
>
> We're having a problem with our cassandra cluster and are at a loss as to
> the cause.
>
> We have what appear to be columns that disappear for a little while, then
> reappear. The rest of the row is returned normally during this time. This
> is, of course, very disturbing, and is wreaking havoc with our application.
>
> A bit more info about what's happening:
>
> We are repeatedly executing the same query against our cluster. Every so
> often, one of the columns will disappear from the row and will remain gone
> for some time. Then after continually executing the same query, the column
> will come back. The queries are being executed against a 3 node cluster,
> with a replication factor of 3, and all reads and writes are done with a
> quorum consistency level.
>
> We upgraded from cassandra 1.1.12 to 1.2.6 last week, but only started
> seeing issues this morning.
>
> Has anyone had a problem like this before, or have any idea what might be
> causing it?

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