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From "Janne Jalkanen (JIRA)" <>
Subject [jira] [Commented] (CASSANDRA-4417) invalid counter shard detected
Date Thu, 10 Jan 2013 07:48:19 GMT


Janne Jalkanen commented on CASSANDRA-4417:

I'm seeing this while running repair -pr. Three-cluster node, RF 3. Straight upgrade from
1.0.12 to 1.1.8; no topology changes.  I see two invalid shard IDs, counts differ by more
than one - sometimes even by 3000 or more.  Seems random to my eyes.

Our counters are in a composite column family, no TTLs in use.

I did disablegossip, disablethrift, drain, upgrade, restart on every node in a rolling fashion.
 Then I did upgradesstables and repair -pr on every node when the entire cluster had been
> invalid counter shard detected 
> -------------------------------
>                 Key: CASSANDRA-4417
>                 URL:
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 1.1.1
>         Environment: Amazon Linux
>            Reporter: Senthilvel Rangaswamy
>         Attachments: cassandra-mck.log.bz2, err.txt
> Seeing errors like these:
> 2012-07-06_07:00:27.22662 ERROR 07:00:27,226 invalid counter shard detected; (17bfd850-ac52-11e1-0000-6ecd0b5b61e7,
1, 13) and (17bfd850-ac52-11e1-0000-6ecd0b5b61e7, 1, 1) differ only in count; will pick highest
to self-heal; this indicates a bug or corruption generated a bad counter shard
> What does it mean ?

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