Closed zaffaridam closed 3 weeks ago
Try to install the latest version of the 20383 dashboard
Explanation:
In your case, the queryHash "FB0D13D4"
had multiple plans, such as plan_summary="IXSCAN { name: 1 }"
and plan_summary="IXSCAN { tenant: 1 }"
, which caused an error in the Grafana panel. I updated the dashboard query to pick only one label value per queryHash (randomly). This will allow the display queries with multiple label values for single queryHash
.
As can be seen in the image, the panel where slow queries should be displayed is not showing the data.
Upon checking the panel configuration, there is an error that I couldn't fix.
Query:
sum(rate(slow_queries_count_total{job=~"$job", ns=~"$ns", query_hash=~"$query_hash" }[$__range])) by (query_hash, ns) * on (query_hash, ns) group_left(op, plan_summary, query_framework, query_shape) slow_queries_info
execution: found duplicate series for the match group {ns="maischat_db.contacts", query_hash="FB0D13D4"} on the right hand-side of the operation: [{__name__="slow_queries_info", db="maischat_db", instance="monitor-eveo.maischat.io:80", job="mongodb-exporter-maischat-new-0", ns="maischat_db.contacts", op="query", plan_summary="IXSCAN { tenant: 1 }", query_hash="FB0D13D4", query_shape="{'find': '?', 'filter': {'tenant': '?', '$or': [{'whatsappId': {'$exists': '?'}}, {'messengerId': {'$exists': '?'}}, {'instagramId': {'$exists': '?'}}]}, 'sort': {'name': '?'}, 'returnKey': '?', 'showRecordId': '?'}"}, {__name__="slow_queries_info", db="maischat_db", instance="monitor-eveo.maischat.io:80", job="mongodb-exporter-maischat-new-0", ns="maischat_db.contacts", op="query", plan_summary="IXSCAN { name: 1 }", query_hash="FB0D13D4", query_shape="{'find': '?', 'filter': {'tenant': '?', '$or': [{'whatsappId': {'$exists': '?'}}, {'messengerId': {'$exists': '?'}}, {'instagramId': {'$exists': '?'}}]}, 'sort': {'name': '?'}, 'returnKey': '?', 'showRecordId': '?'}"}];many-to-many matching not allowed: matching labels must be unique on one side