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lib/logstorage: properly clone field values at values stats function

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Previously field values weren't properly cloned, which could lead to garbage output for `values` stats function

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7458
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Aliaksandr Valialkin 2024-11-08 23:09:55 +01:00
parent 9b766d3e32
commit 2f1ce74d97
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2 changed files with 6 additions and 4 deletions
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1
docs/VictoriaLogs/CHANGELOG.md
View file

@ -25,6 +25,7 @@ according to [these docs](https://docs.victoriametrics.com/victorialogs/quicksta
* FEATURE: [syslog data ingestion](https://docs.victoriametrics.com/victorialogs/data-ingestion/syslog/): allow adding the specified [log fields](https://docs.victoriametrics.com/victorialogs/keyconcepts/#data-model) during data ingestion. See [these docs](https://docs.victoriametrics.com/victorialogs/data-ingestion/syslog/#adding-extra-fields). See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7354).
* FEATURE: [Loki data ingestion](https://docs.victoriametrics.com/victorialogs/data-ingestion/#loki-json-api): show the original request body on parse errors. This should simplify debugging. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7490).
* BUGFIX: [`values` stats function](https://docs.victoriametrics.com/victorialogs/logsql/#values-stats): fix a bug, which could lead to corrupted results. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7458).
* BUGFIX: [HTTP querying APIs](https://docs.victoriametrics.com/victorialogs/querying/#http-api): properly take into account the `end` query arg when calculating time range for [`_time:duration` filter](https://docs.victoriametrics.com/victorialogs/logsql/#time-filter). Previously the `_time:duration` filter was treated as `_time:[now-duration, now)`, while it should be treated as `_time:[end-duration, end)`.
## [v0.41.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v0.41.0-victorialogs)

9
lib/logstorage/stats_values.go
View file

@ -91,12 +91,13 @@ func (svp *statsValuesProcessor) updateStatsForAllRowsColumn(c *blockResultColum
}
values := svp.values
vPrev := ""
for _, v := range c.getValues(br) {
if len(values) == 0 || values[len(values)-1] != v {
v = strings.Clone(v)
stateSizeIncrease += len(v)
if len(values) == 0 || v != vPrev {
vPrev = strings.Clone(v)
stateSizeIncrease += len(vPrev)
}
values = append(values, v)
values = append(values, vPrev)
}
svp.values = values