Thousand of shards


(Casper Thrane) #1

Hi!

I am new to ES, and the system we are using is setup by an external
consultant. The cluster is very unstable. I have tried to run this:
-bash-4.1$ curl -XGET 'http://localhost:9200/_cluster/health?pretty=true'

{
"cluster_name" : "elasticsearch",
"status" : "green",
"timed_out" : false,
"number_of_nodes" : 17,
"number_of_data_nodes" : 4,
"active_primary_shards" : 6238,
"active_shards" : 12268,
"relocating_shards" : 2,
"initializing_shards" : 0,
"unassigned_shards" : 0
}

I have read a lot of places, that thousand of shards is a problem. Does the
above say enough or should I get more data?

Br
Casper

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(Mark Walkom) #2

That sort of shard count is ok on your cluster as you have 17 nodes :slight_smile:

Can you give us more details on what sort of hardware you run on, your
java, ES and OS versions and releases?

Regards,
Mark Walkom

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

On 26 August 2014 05:29, Casper Thrane casper.s.thrane@gmail.com wrote:

Hi!

I am new to ES, and the system we are using is setup by an external
consultant. The cluster is very unstable. I have tried to run this:
-bash-4.1$ curl -XGET 'http://localhost:9200/_cluster/health?pretty=true'

{
"cluster_name" : "elasticsearch",
"status" : "green",
"timed_out" : false,
"number_of_nodes" : 17,
"number_of_data_nodes" : 4,
"active_primary_shards" : 6238,
"active_shards" : 12268,
"relocating_shards" : 2,
"initializing_shards" : 0,
"unassigned_shards" : 0
}

I have read a lot of places, that thousand of shards is a problem. Does
the above say enough or should I get more data?

Br
Casper

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(system) #3