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From sai krishnam raju potturi <pskraj...@gmail.com>
Subject Re : decommissioned nodes shows up in "nodetool describecluster" as UNREACHABLE in 2.1.12 version
Date Tue, 16 Feb 2016 19:08:24 GMT
hi;
    we have a 12 node cluster across 2 datacenters. We are currently using
cassandra 2.1.12 version.

SNITCH : GossipingPropertyFileSnitch

When we decommissioned few nodes in a particular datacenter and observed
the following :

nodetool status shows only the live nodes in the cluster.

nodetool describecluster shows the decommissioned nodes as UNREACHABLE.

nodetool gossipinfo shows the decommissioned nodes as "LEFT"


When the live nodes were restarted, "nodetool describecluster" shows only
the live nodes, which is expected.

Purging the gossip info too did not help.

INFO  17:27:07 InetAddress /X.X.X.X is now DOWN
INFO  17:27:07 Removing tokens [125897680671740685543105407593050165202,
140213388002871593911508364312533329916,
 98576967436431350637134234839492449485] for /X.X.X.X
INFO  17:27:07 InetAddress /X.X.X.X is now DOWN
INFO  17:27:07 Removing tokens [11116977666116265389022494863106850615,
111270759969411259938117902792984586225,
138611464975439236357814418845450428175] for /X.X.X.X

Has anybody experienced similar behaviour. Restarting the entire cluster,
 everytime a node is decommissioned does not seem right. Thanks in advance
for the help.


thanks
Sai

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