elasticsearch
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elasticsearch [2018/08/09 16:07] k2patel [Quick Commands] |
elasticsearch [2021/01/25 23:37] k2patel |
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| Line 5: | Line 5: | ||
| <code bash> | <code bash> | ||
| curl -XGET 'http://localhost:9200/_cluster/health?pretty=true' | curl -XGET 'http://localhost:9200/_cluster/health?pretty=true' | ||
| - | </code> | ||
| - | |||
| - | == Node Information == | ||
| - | <code bash> | ||
| - | curl -XGET 'http://localhost:9200/_nodes?pretty=true' | ||
| </code> | </code> | ||
| Line 20: | Line 15: | ||
| <code bash> | <code bash> | ||
| curl -XGET 'http://localhost:9200/_cat/shards' | curl -XGET 'http://localhost:9200/_cat/shards' | ||
| + | </code> | ||
| + | |||
| + | == Unassigned shard | timeout == | ||
| + | **Try restarting** | ||
| + | <code bash> | ||
| + | curl -XPOST -k https://admin:<password>@<hostname>:9200/_cluster/reroute?retry_failed=true --CApath /etc/elasticsearch/root-ca-key.pem | ||
| + | </code> | ||
| + | **List indexes not assigned** | ||
| + | <code bash> | ||
| + | curl -k --CApath /etc/elasticsearch/root-ca-key.pem -XGET https://admin:<password>@<hostname>:9200/_cat/shards?h=index,shard,prirep,state,unassigned.reason | grep -i UNASSIGNED | ||
| + | </code> | ||
| + | **Detailed information on issue** | ||
| + | <code bash> | ||
| + | curl -k --CApath /etc/elasticsearch/root-ca-key.pem -XGET https://admin:<password>@<hostname>:9200/_cluster/allocation/explain?pretty | ||
| </code> | </code> | ||
| Line 123: | Line 132: | ||
| } | } | ||
| }' | }' | ||
| + | </code> | ||
| + | |||
| + | ==== Rolling Upgrade ==== | ||
| + | :!: This should work on elastic.co but my steps are mainly taken from the Opendistro. | ||
| + | |||
| + | === Set the cluster in upgrade mode === | ||
| + | <code bash> | ||
| + | curl -k -XPOST https://admin:<password>@<hostname>:9200/_ml/set_upgrade_mode?enabled=true | ||
| + | </code> | ||
| + | |||
| + | === Disable sharding === | ||
| + | <code bash> | ||
| + | curl -k -H 'Content-Type: application/json' -XPUT -d '{ | ||
| + | "persistent": { | ||
| + | "cluster.routing.allocation.enable": "primaries" | ||
| + | } | ||
| + | }' https://admin:<password>@<hostname>:9200/_cluster/settings --CApath /etc/elasticsearch/root-ca-key.pem | ||
| + | </code> | ||
| + | |||
| + | === Flush / Sync data on all host in cluster === | ||
| + | <code bash> | ||
| + | curl -k -XPOST https://admin:<password>@<hostname>:9200/_flush/synced --CApath /etc/elasticsearch/root-ca-key.pem | ||
| + | </code> | ||
| + | |||
| + | === Stop / Upgrade / start Services === | ||
| + | <code bash> | ||
| + | systemctl stop kibana.service | ||
| + | systemctl stop elasticsearch.service | ||
| + | dnf install opendistroforelasticsearch-1.12.0 -y | ||
| + | dnf install opendistroforelasticsearch-kibana-1.12.0 -y | ||
| + | systemctl start elasticsearch.service | ||
| + | systemctl start kibana.service | ||
| + | </code> | ||
| + | |||
| + | === Enable Sharding === | ||
| + | <code bash> | ||
| + | curl -k -H 'Content-Type: application/json' -XPUT -d '{ | ||
| + | "persistent": { | ||
| + | "cluster.routing.allocation.enable": "all" | ||
| + | } | ||
| + | }' https://admin:<password>@<hostname>:9200/_cluster/settings --CApath /etc/elasticsearch/root-ca-key.pem | ||
| + | </code> | ||
| + | |||
| + | ==== Node Information ==== | ||
| + | === List all nodes and important information === | ||
| + | :!:[[https://www.elastic.co/guide/en/elasticsearch/reference/current/cat-nodes.html | Document Ref.]] | ||
| + | <code bash> | ||
| + | curl -XGET -k https://admin:<password>@<hostname>:9200/_cat/nodes?v=true\&h=id,ip,port,v,m,hp,l,r,j,fdc,fdm | ||
| </code> | </code> | ||
elasticsearch.txt ยท Last modified: 2021/01/25 23:41 by k2patel
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