Elasticsearch and restarting


(Brian Dunbar) #1

Hi,

  • Elasticsearch 1.1
  • Two-node cluster.
  • Ubuntu 12.04

Last night, I installed the marvel plugin, after which my automation script
(1) issued 'service elasticsearch restart' within seconds of each other.

After which, in Paramedic, both nodes showed 'no data' (using Paramedic)
which was cause for a few minutes of 'whoa'.

Restarted node-1, waited for it to init, then restarted node-2 and all was
well.

Question is: is restarting ES in a cluster mode using the built-in service
facility the 'right' way? Or would it be better to halt / start using the
API? [2]

Thanks,

~brian

(1) Ansible

(2) http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/cluster-nodes-shutdown.html

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(Mark Walkom) #2

Using service is fine, but you can only issue a shutdown with the API, not
start up.

Regards,
Mark Walkom

Infrastructure Engineer
Campaign Monitor
email: markw@campaignmonitor.com
web: www.campaignmonitor.com

On 21 May 2014 04:55, Brian Dunbar brian.dunbar@gmail.com wrote:

Hi,

  • Elasticsearch 1.1
  • Two-node cluster.
  • Ubuntu 12.04

Last night, I installed the marvel plugin, after which my automation
script (1) issued 'service elasticsearch restart' within seconds of each
other.

After which, in Paramedic, both nodes showed 'no data' (using Paramedic)
which was cause for a few minutes of 'whoa'.

Restarted node-1, waited for it to init, then restarted node-2 and all was
well.

Question is: is restarting ES in a cluster mode using the built-in service
facility the 'right' way? Or would it be better to halt / start using the
API? [2]

Thanks,

~brian

(1) Ansible

(2)
http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/cluster-nodes-shutdown.html

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(system) #3