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From "Chris Burroughs (JIRA)" <>
Subject [jira] [Created] (CASSANDRA-2568) Write only mode
Date Tue, 26 Apr 2011 20:34:05 GMT
Write only mode

                 Key: CASSANDRA-2568
             Project: Cassandra
          Issue Type: Improvement
          Components: Core
            Reporter: Chris Burroughs

Allow a node to receive writes (which are relatively cheap) but not reads (random io).  The
purpose is to allow a major compaction or repair to be run on a node that is under too much
load for this be safely done "live".  Marking a node as down by disabling gossip is good enough
in some cases(for major compaction).  But for repairs is insufficient, since hints will build
back up once I repeat the process on the next node.

This is presumably a rather complicated change in to gossip to accommodate the new state.
 I am also concerned of the effects of having different numbers of nodes available for write
and read quorums.

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