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From "Matthew F. Dennis (JIRA)" <>
Subject [jira] Created: (CASSANDRA-1670) cannot decom a node then bring it back to the cluster
Date Wed, 27 Oct 2010 22:28:21 GMT
cannot decom a node then bring it back to the cluster

                 Key: CASSANDRA-1670
             Project: Cassandra
          Issue Type: Bug
    Affects Versions: 0.7 beta 2
         Environment: RAX
            Reporter: Matthew F. Dennis

two node cluster (node0, node1).  node0 is listed as the only seed on both nodes.  Listen
addresses explicitly set to an IP on both nodes. No initial token, no autobootstrap (but see
below).  Bring up the ring.  Everything is fine on both nodes.

decom node1.  verify decom completed correctly by reading the logs on both nodes.  rm all
data/logs on node1.  bring node1 up again.

One of two things happen:

* node0 thinks it is in a ring by itself, node1 thinks both nodes are in the ring.
* both node0 and node1 think they are in rings by themselves

If you restart node0 after decom, it appears to work normally.

Similar issues seem to present if you kill node1 (either when autobootstrapping before it
completes or after it is in the ring) and removetoken.

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