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From "Dikang Gu (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CASSANDRA-11740) Nodes about wrong membership view of the cluster
Date Mon, 09 May 2016 22:01:12 GMT
Dikang Gu created CASSANDRA-11740:
-------------------------------------

             Summary: Nodes about wrong membership view of the cluster
                 Key: CASSANDRA-11740
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-11740
             Project: Cassandra
          Issue Type: Bug
            Reporter: Dikang Gu
             Fix For: 2.2.x, 3.x


We have a few hundreds nodes across 3 data centers, and we are doing a few millions writes
per second into the cluster.

The problem we found is that there are some nodes (>10) have very wrong view of the cluster.

For example, we have 3 data centers A, B and C. On the problem nodes, in the output of the
'nodetool status', it shows that ~100 nodes are not in data center A, B, or C. Instead, it
shows nodes are in DC1, and rack r1, which is very wrong. And as a result, the node will return
wrong results to client requests.

Datacenter: DC1
===============
Status=Up/Down
/ State=Normal/Leaving/Joining/Moving
– Address Load Tokens Owns Host ID Rack
UN 2401:db00:11:6134:face:0:1:0 509.52 GB 256 ? e24656ac-c3b2-4117-b933-a5b06852c993 r1
UN 2401:db00:11:b218:face:0:5:0 510.01 GB 256 ? 53da2104-b1b5-4fa5-a3dd-52c7557149f9 r1
UN 2401:db00:2130:5133:face:0:4d:0 459.75 GB 256 ? ef8311f0-f6b8-491c-904d-baa925cdd7c2 r1

We are using GossipingPropertyFileSnitch.

Thanks



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