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From: Anubhav Kale <Anubhav.Kale@microsoft.com.INVALID>
To: "user@cassandra.apache.org" <user@cassandra.apache.org>
Subject: unrecognized column family in logs
Thread-Topic: unrecognized column family in logs
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Date: Wed, 8 Nov 2017 17:50:12 +0000
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Hello,

We run Cassandra 2.1.13 and since last few days we're seeing below in logs =
occasionally. The node then becomes unresponsive to cqlsh.

ERROR [SharedPool-Worker-2] 2017-11-08 17:02:32,362 CommitLogSegment.java:4=
41 - Attempted to write commit log entry for unrecognized column family: 28=
54d160-3a2f-11e6-925c-b143135bdc80

https://github.com/mariusae/cassandra/blob/master/src/java/org/apache/cassa=
ndra/db/commitlog/CommitLogSegment.java#L95

The column family has heavy writes, but it hasn't changed schema / load wis=
e recently. How can this be troubleshooted / fixed ?

Thanks !


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<p class=3D"MsoNormal">Hello,<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">We run Cassandra 2.1.13 and since last few days we&#=
8217;re seeing below in logs occasionally. The node then becomes unresponsi=
ve to cqlsh.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">ERROR [SharedPool-Worker-2] 2017-11-08 17:02:32,362 =
CommitLogSegment.java:441 - Attempted to write commit log entry for unrecog=
nized column family: 2854d160-3a2f-11e6-925c-b143135bdc80<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><a href=3D"https://github.com/mariusae/cassandra/blo=
b/master/src/java/org/apache/cassandra/db/commitlog/CommitLogSegment.java#L=
95">https://github.com/mariusae/cassandra/blob/master/src/java/org/apache/c=
assandra/db/commitlog/CommitLogSegment.java#L95</a><o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">The column family has heavy writes, but it hasn&#821=
7;t changed schema / load wise recently. How can this be troubleshooted / f=
ixed ?<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Thanks !<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
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