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Artem Fetishev a5424e95b3
lib/storage: adds metrics that count records that failed to insert 
### Describe Your Changes

Add storage metrics that count records that failed to insert:

- `RowsReceivedTotal`: the number of records that have been received by
the storage from the clients
- `RowsAddedTotal`: the number of records that have actually been
persisted. This value must be equal to `RowsReceivedTotal` if all the
records have been valid ones. But it will be smaller otherwise. The
values of the metrics below should provide the insight of why some
records hasn't been added
-   `NaNValueRows`: the number of records whose value was `NaN`
- `StaleNaNValueRows`: the number of records whose value was `Stale NaN`
- `InvalidRawMetricNames`: the number of records whose raw metric name
has failed to unmarshal.

The following metrics existed before this PR and are listed here for
completeness:

- `TooSmallTimestampRows`: the number of records whose timestamp is
negative or is older than retention period
- `TooBigTimestampRows`: the number of records whose timestamp is too
far in the future.
- `HourlySeriesLimitRowsDropped`: the number of records that have not
been added because the hourly series limit has been exceeded.
- `DailySeriesLimitRowsDropped`: the number of records that have not
been added because the daily series limit has been exceeded.

---
Signed-off-by: Artem Fetishev <wwctrsrx@gmail.com>
2024-09-06 17:57:21 +02:00
..
main.go lib/storage: adds metrics that count records that failed to insert 2024-09-06 17:57:21 +02:00
README.md all: open-sourcing single-node version 2019-05-23 00:18:06 +03:00

README.md

vmstorage performs the following tasks:

  • Accepts inserts from vminsert and stores them to local storage.

  • Performs select requests from vmselect.