README.md: mention about -search.queryStats.lastQueriesCount and -search.queryStats.minQueryDuration command-line flags in docs about query stats

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Aliaksandr Valialkin 2020-12-29 11:38:39 +02:00
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@ -544,8 +544,10 @@ Additionally VictoriaMetrics provides the following handlers:
* the most frequently executed queries - `topByCount` * the most frequently executed queries - `topByCount`
* queries with the biggest average execution duration - `topByAvgDuration` * queries with the biggest average execution duration - `topByAvgDuration`
* queries that took the most time for execution - `topBySumDuration` * queries that took the most time for execution - `topBySumDuration`
The number of returned queries can be limited via `topN` query arg. Old queries can be filtered out with `maxLifetime` query arg. The number of returned queries can be limited via `topN` query arg. Old queries can be filtered out with `maxLifetime` query arg.
For example, request to `/api/v1/status/top_queries?topN=5&maxLifetime=30s` would return up to 5 queries per list, which were executed during the last 30 seconds. For example, request to `/api/v1/status/top_queries?topN=5&maxLifetime=30s` would return up to 5 queries per list, which were executed during the last 30 seconds.
VictoriaMetrics tracks the last `-search.queryStats.lastQueriesCount` queries with durations at least `-search.queryStats.minQueryDuration`.
## Graphite API usage ## Graphite API usage