Common system metrics collection#24416
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alexey-milovidov merged 47 commits intoClickHouse:masterfrom Jul 7, 2021
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…m .h; another small fixes
… "readField" method
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Lots of environments already have such monitoring, looks like it worth adding a configuration directive to control these new collectors, and make it OFF by default? Also maybe it worth looking at some existing tools (most popular these days I guess is node exporter) to make these metrics compatible? |
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@azat What is the reason for turning these metrics off? The scenario is when a server collected these metrics for a year and at least once these metrics will save a day. |
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Perf test Ok (the column has been renamed and the new name does not exist in old version). |
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Jul 16, 2021
Since in ClickHouse#24416 asynchronous_metrics_update_period_s had been set to 1 and this became annoying.
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Changelog entry (a user-readable short description of the changes that goes to CHANGELOG.md):
Collect common system metrics (in
system.asynchronous_metricsandsystem.asynchronous_metric_log) about CPU usage, disk usage, memory usage, IO, network, files, load average, CPU frequencies, thermal sensors, EDAC counters, system uptime; also added metrics about the scheduling jitter and the time spent collecting the metrics. It works likeatopin ClickHouse and allows to get monitoring data even if you have no additional tools installed. This closes #9430.