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A utility for Fixing ElasticSearch deployments with massively UNASSIGNED shards
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Geoff Franks 1cb3932382 Initial PoC of esuf 2016-02-16 16:51:15 -05:00
.gitignore Initial PoC of esuf 2016-02-16 16:51:15 -05:00
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README.md Added readme 2016-02-16 13:54:59 -05:00
main.go Initial PoC of esuf 2016-02-16 16:51:15 -05:00

README.md

Summary

esuf is a utility for fixing ElasticSearch clusters with lots of UNASSIGNED shards. Its purpose is to offer a single command to run, which will examine ElasticSearch, and do its best to return it to a green state.

It iterates over all indices, finding any UNASSIGNED shards, and assigns them to an appropriate data node, based on the assignments of other shards in the index. It will not assign a shard to a data node that already has a shard. It will not assign replica shards until the primary shard is online. It will do its best to balance the primary shard relocations evenly across data nodes.

Installation

go get github.com/starkandwayne/esuf

Usage

For discovering what's wrong with ElasticSearch:

./esuf -H http://ip.of.elasticsearch.box:9200/

For fixing ElasticSearch:

./esuf -H http://ip.of.elasticsearch.box:9200/ --fix