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authorMichele Baldessari <michele@acksyn.org>2016-09-29 18:50:39 +0200
committerMichele Baldessari <michele@acksyn.org>2016-09-29 18:50:39 +0200
commit5e41f154166876e762517101ada05446c6a022f6 (patch)
tree795b92f8baeffb3481f42340f0fd7a4cd8bd3300 /docker/copy-etc.sh
parent4cdc4fc67361b175d90f6b2807c26b5ee78c8282 (diff)
Balance Rabbitmq Queue Master Location on queue declaration with min-masters strategy
It may happen that one of the controllers may become unavailable and Queue Masters will be located on available controllers during queue declarations. Once a lost controller will be become available masters of newly declared queues are not placed with priority to such controller with obviously lower number of queue masters and thus the distribution may be unbalanced and one of the controllers may become under significantly higher load in some circumstances of multiple fail-overs. With rabbit 3.6.0 rabbitmq introduced a new HA feature of Queue masters distribution - one of the strategies is min-masters, which picks the node hosting the minimum number of masters. One of the ways how to turn such min-masters strategy on is by adding following into configuration file - rabbitmq.config {rabbit,[ .. {queue_master_locator, <<"min-masters">>}, .. ]}, Change-Id: I61bcab0e93027282b62f2a97bec87cbb0a6e6551 Closes-Bug: #1629010
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