Indices status shows yellow

Elastic Stack Elasticsearch
1

health status index pri rep docs.count docs.deleted store.size pri.store.size
yellow open .kibana 5 1 9 0 41.3kb 41.3kb
yellow open logstash-2017.07.20 5 1 2148 0 634.5kb 634.5kb
yellow open .reindex-status 1 1 0 0 159b 159b

what yellow status means in indices?

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is this on a single node? or in a cluster ?

If a single node (ie your dev machine), yellow is normal.

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Yes , It's a single node cluster .
But my main intention is upgrade from 1.7 to 5.5.
So I have to do reindex in 2.x and move to 5.5.
Migrate plugin is not working if index status is yellow.
Any suggestions on this.

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I think we got around this by setting the number of replicas to 0 on test machines when creating the indexes.. not sure if you can change this post putting data in there?

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5

I think your indices are configured with one or more Recplicas.

Set index.number_of_replicas : 0 and you will be green.
https://www.elastic.co/guide/en/elasticsearch/reference/current/indices-update-settings.html

If elastic has replicas that it is not able to allocate to a Node it will show status Yellow.

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