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From "Anton Winter (JIRA)" <>
Subject [jira] [Created] (CASSANDRA-3194) repair streaming forwarding loop
Date Tue, 13 Sep 2011 08:02:08 GMT
repair streaming forwarding loop

                 Key: CASSANDRA-3194
             Project: Cassandra
          Issue Type: Bug
          Components: Core
    Affects Versions: 1.0.0
            Reporter: Anton Winter

I am able to reproduce what appears to be a streaming forwarding loop when running repairs.
 This affect only nodes using broadcast_address (ec2 external ip) & listen_address of (Configuration is using property file snitch in a multi DC NTS where some DC's are
EC2 and others are not).  The hosts in the other dc's not using broadcast_address do not experience
this symptom.

on ec2 host dc1host1:
INFO [AntiEntropyStage:1] 2011-09-13 06:34:01,673 (line 211) [streaming
task #ce793c30-ddd1-11e0-0000-071a4b76fefb] Received task from / to stream 12259 ranges
to /external.ec2.ip.dc1host3
 INFO [AntiEntropyStage:1] 2011-09-13 06:34:01,673 (line 136) [streaming
task #ce793c30-ddd1-11e0-0000-071a4b76fefb] Forwarding streaming repair of 12259 ranges to
/external.ec2.ip.of.dc1host1 (to be streamed with /external.ip.of.host3)

The above appears to trigger another streaming task and results in saturating the network
interfaces dc1host1.  The above log entries are repeated until cassandra is killed.

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