Jan Høydahl created SOLR-15397:
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Summary: Expose zookeeper status in the exporter
Key: SOLR-15397
URL: https://issues.apache.org/jira/browse/SOLR-15397
Project: Solr
Issue Type: New Feature
Security Level: Public (Default Security Level. Issues are Public)
Components: contrib - prometheus-exporter
Reporter: Jan Høydahl
Attachments: Skjermbilde 2021-05-06 kl. 16.58.42.png
This issue will add these prometheus metrics to solr exporter:
{code:java}
# HELP solr_zookeeper_nodestatus See following URL:
https://solr.apache.org/guide/cloud-screens.html#zk-status-view
# TYPE solr_zookeeper_nodestatus gauge
solr_zookeeper_nodestatus{host="zoo1:2181",zk_host="zoo1:2181,zoo2:2181,zoo3:2181",}
1.0
solr_zookeeper_nodestatus{host="zoo2:2181",zk_host="zoo1:2181,zoo2:2181,zoo3:2181",}
1.0
solr_zookeeper_nodestatus{host="zoo3:2181",zk_host="zoo1:2181,zoo2:2181,zoo3:2181",}
0.0
# HELP solr_zookeeper_status See following URL:
https://solr.apache.org/guide/cloud-screens.html#zk-status-view
# TYPE solr_zookeeper_status gauge
solr_zookeeper_status{status="yellow",zk_host="zoo1:2181,zoo2:2181,zoo3:2181",}
0.0
# HELP solr_zookeeper_ensemble_size See following URL:
https://solr.apache.org/guide/cloud-screens.html#zk-status-view
# TYPE solr_zookeeper_ensemble_size gauge
solr_zookeeper_ensemble_size{mode="ensemble",zkHost="zoo1:2181,zoo2:2181,zoo3:2181",zk_host="zoo1:2181,zoo2:2181,zoo3:2181",}
3.0
{code}
The data is fetched and parsed from Solr's /admin/zookeeper/status endpoint.
Can be used for alerting on earlier ZK versions that do not natively support
prometheus, or if you don't want to setup separate ZK monitoring. Example
Grafana dashboard (blue graph)
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