docs/CHANGELOG.md: document b2294d1cf1

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Aliaksandr Valialkin 2022-05-02 15:21:24 +03:00
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@ -28,6 +28,7 @@ The following tip changes can be tested by building VictoriaMetrics components f
* FEATURE: [vmui](https://docs.victoriametrics.com/#vmui): shown an empty graph on the selected time range when there is no data on it. Previously `No data to show` placeholder was shown instead of the graph in this case. This prevented from zooming and scrolling of such a graph.
* FEATURE: [vmui](https://docs.victoriametrics.com/#vmui): show the selected `last N minutes/hours/days` in the top right corner. Previously the `start - end` duration was shown instead, which could be hard to interpret. See [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2402).
* FEATURE: expose `vm_indexdb_items_added_total` and `vm_indexdb_items_added_size_bytes_total` counters at `/metrics` page, which can be used for monitoring the rate for addition of new entries in `indexdb` (aka `inverted index`) alongside the total size in bytes for the added entries. See [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2471).
* FEATURE: [vmctl](https://docs.victoriametrics.com/vmctl.html): show data pocessing speed during data migration.
* FEATURE: [MetricsQL](https://docs.victoriametrics.com/MetricsQL.html): add `drop_common_labels()` function, which drops common `label="name"` pairs from the passed time series. See [these docs](https://docs.victoriametrics.com/MetricsQL.html#drop_common_labels).
* FEATURE: [MetricsQL](https://docs.victoriametrics.com/MetricsQL.html): add `tlast_change_over_time(m[d])` function, which returns the timestamp of the last change of `m` on the given lookbehind window `d`. See [these docs](https://docs.victoriametrics.com/MetricsQL.html#tlast_change_over_time).
* FEATURE: add a handler for `/api/v1/status/buildinfo` endpoint, which is used by Grafana starting from v8.5.0 . See [this pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/2515).