Upgrading elasticsearch from 0.20.5 to 0.90.0 -

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i have 5 node 0.20.5 elasticsearch cluster, replicas set 2, shards set 5 , around 70 million documents upgrade 0.90.0

i can't seem find definitive instructions upgrading, thinking along these lines:

  1. issue cluster shutdown:

    curl -xpost 'http://localhost:9200/_cluster/nodes/_local/_shutdown'

  2. upgrade each of nodes using 0.90.0 deb package

    dpkg -i elasticsearch-0.20.5.deb

  3. start elasticsearch on each of nodes:

    /etc/init.d/elasticsearch start

should @ changing of these settings prior?

gateway.recover_after_nodes

gateway.recover_after_time

gateway.expected_nodes

cheers!


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