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README.md: recommend checking which metrics will be deleted before deleting them

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Aliaksandr Valialkin 2019-08-27 15:01:07 +03:00
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@ -478,6 +478,9 @@ where `<timeseries_selector_for_delete>` may contain any [time series selector](
for metrics to delete. After that all the time series matching the given selector are deleted. Storage space for for metrics to delete. After that all the time series matching the given selector are deleted. Storage space for
the deleted time series isn't freed instantly - it is freed during subsequent merges of data files. the deleted time series isn't freed instantly - it is freed during subsequent merges of data files.
It is recommended verifying which metrics will be deleted with the call to `http://<victoria-metrics-addr>:8428/api/v1/series?match[]=<timeseries_selector_for_delete>`
before actually deleting the metrics.
### How to export time series? ### How to export time series?