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Published Jun. 30, 2025

Upgrading from Elasticsearch 7.9.0 to 7.17.0, index status is YELLOW

Written By

Jordi Rodó

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Issue

  • Upgrading from Elasticsearch 7.9.0 to 7.17.0, index status is YELLOW
  • The UNASSIGNED shard can be seen with the following command
    $ curl search:9200/_cat/shards
    .ds-.logs-deprecation.elasticsearch-default-2022.10.13-000001 0 p STARTED 10.0.0.88 search-0
    .ds-.logs-deprecation.elasticsearch-default-2022.10.13-000001 0 r UNASSIGNED

Environment

  • Liferay PaaS (DXP 7.3)

solution

  • One replica shard is not allocated (UNASSIGNED) for the index for Elasticsearch, so the node itself has YELLOW status
  • Delete the concerned replica shard with the following command
    curl -XPUT search:9200/.ds-.logs-deprecation.elasticsearch-default-2022.10.13-000001/_settings -H 'Content-Type: application/json' -d'{ "number_of_replicas":0 }'

Additional Information

  • The following commands are useful for troubleshooting Elasticsearch 
    curl http://search:9200/
curl http://search:9200/_cat/nodes
curl http://search:9200/_cat/shards
curl http://search:9200/_cat/allocation
curl http://search:9200/_cat/indices
curl http://search:9200/_cluster/settings
curl http://search:9200/_cluster/health
curl http://search:9200/_cluster/stats
curl http://search:9200/_cluster/allocation/explain
curl http://search:9200/liferay-*/_settings

 

 

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