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app/vmagent/README.md: mention about prodmscrape.suppressScrapeErrors

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Aliaksandr Valialkin 2020-04-17 13:08:21 +03:00
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app/vmagent/README.md
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@ -191,6 +191,9 @@ either via `vmagent` itself or via Prometheus, so the exported metrics could be
* It is recommended increasing the maximum number of open files in the system (`ulimit -n`) when scraping big number of targets, * It is recommended increasing the maximum number of open files in the system (`ulimit -n`) when scraping big number of targets,
since `vmagent` establishes at least a single TCP connection per each target. since `vmagent` establishes at least a single TCP connection per each target.
* When `vmagent` scrapes many unreliable targets, it can flood error log with scrape errors. These errors can be suppressed
by passing `-promscrape.suppressScrapeErrors` command-line flag to `vmagent`. The most recent scrape error per each target can be observed at `http://vmagent-host:8429/targets`.
* It is recommended increasing `-remoteWrite.queues` if `vmagent` collects more than 100K samples per second * It is recommended increasing `-remoteWrite.queues` if `vmagent` collects more than 100K samples per second
and `vmagent_remotewrite_pending_data_bytes` metric exported by `vmagent` at `/metrics` page constantly grows. and `vmagent_remotewrite_pending_data_bytes` metric exported by `vmagent` at `/metrics` page constantly grows.

3
docs/vmagent.md
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@ -191,6 +191,9 @@ either via `vmagent` itself or via Prometheus, so the exported metrics could be
* It is recommended increasing the maximum number of open files in the system (`ulimit -n`) when scraping big number of targets, * It is recommended increasing the maximum number of open files in the system (`ulimit -n`) when scraping big number of targets,
since `vmagent` establishes at least a single TCP connection per each target. since `vmagent` establishes at least a single TCP connection per each target.
* When `vmagent` scrapes many unreliable targets, it can flood error log with scrape errors. These errors can be suppressed
by passing `-promscrape.suppressScrapeErrors` command-line flag to `vmagent`. The most recent scrape error per each target can be observed at `http://vmagent-host:8429/targets`.
* It is recommended increasing `-remoteWrite.queues` if `vmagent` collects more than 100K samples per second * It is recommended increasing `-remoteWrite.queues` if `vmagent` collects more than 100K samples per second
and `vmagent_remotewrite_pending_data_bytes` metric exported by `vmagent` at `/metrics` page constantly grows. and `vmagent_remotewrite_pending_data_bytes` metric exported by `vmagent` at `/metrics` page constantly grows.