Elasticsearch Reference Card

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Revision as of 06:43, 6 November 2021 by Chris (talk | contribs) (→‎INDICES)
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1 OVERVIEW

  • get version and details
curl -XGET 'http://localhost:9200'

2 CLUSTER AND NODE

curl 'http://localhost:9200/_cluster/health?pretty'
curl 'http://localhost:9200/_cluster/health?wait_for_status=yellow&timeout=50s&pretty'
curl 'http://localhost:9200/_cluster/state?pretty'
curl 'http://localhost:9200/_cluster/stats?human&pretty'
curl 'http://localhost:9200/_cluster/pending_tasks?pretty'
curl 'http://localhost:9200/_nodes?pretty'
curl 'http://localhost:9200/_nodes/stats?pretty'
curl 'http://localhost:9200/_nodes/nodeId1,nodeId2/stats?pretty'
  • full settings
curl 'http://localhost:9200/_cluster/settings?include_defaults=true&flat_settings=true&pretty'

3 INDICES

  • list
curl -X GET 'http://localhost:9200/_cat/indices?v'
  • delete
curl -X DELETE 'http://localhost:9200/examples'
  • back up
curl -XPOST --header 'Content-Type: application/json' http://localhost:9200/_reindex -d '{
  "source": {
    "index1": "someexamples"
  },
  "dest": {
    "index2": "someexamples_copy"
  }
}'
  • list all docs in an index
curl -X GET 'http://localhost:9200/elasticsearch_query_examples/_search'

4 SHRADS

  • move shards from one node to another
curl -XPOST 'http://localhost:9200/_cluster/reroute' -d '{
"commands" : [
{
"move" :
{
"index" : "indexname", "shard" : 1,
"from_node" : "nodename", "to_node" : "nodename"
}
}
]
}';echo
  • force the allocation of an unassigned shard with a reason
curl -XPOST 'http://localhost:9200/_cluster/reroute?explain' -d '{
"commands" : [ {
"allocate" : {
"index" : "indexname", "shard" : 0, "node" : "nodename"
}
} ]
}';echo