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…specifying `-streamAggr.dedupInterval` or `-remoteWrite.streamAggr.dedupInterval` command-line flag [The documentation](https://docs.victoriametrics.com/stream-aggregation/) contains conflicting descriptions regarding deduplication for non-matched series when `-remoteWrite.streamAggr.config` and / or `-streamAggr.config` are set: 1. Statement below says **all the received data** is deduplicated: >[vmagent](https://docs.victoriametrics.com/vmagent/) supports relabeling, deduplication and stream aggregation for all the received data, scraped or pushed. Then, the collected data will be forwarded to specified -remoteWrite.url destinations. The data processing order is the following: >1. all the received data is relabeled according to the specified [-remoteWrite.relabelConfig](https://docs.victoriametrics.com/vmagent/#relabeling) (if it is set) >2. all the received data is deduplicated according to specified [-streamAggr.dedupInterval](https://docs.victoriametrics.com/stream-aggregation/#deduplication) (if it is set to duration bigger than 0) 2. Another statement says the deduplication is performed individually for the **matching samples** >The de-deduplication is performed after applying [relabeling](https://docs.victoriametrics.com/vmagent/#relabeling) and before performing the aggregation. If the -remoteWrite.streamAggr.config and / or -streamAggr.config is set, then the de-duplication is performed individually per each [stream aggregation config](https://docs.victoriametrics.com/stream-aggregation/#stream-aggregation-config) for the matching samples after applying [input_relabel_configs](https://docs.victoriametrics.com/stream-aggregation/#relabeling). Considering the following deduplication use cases: 1. To apply deduplication(globally or for specific remoteWrite destination) for all the received data, scraped or pushed --- using `-streamAggr.dedupInterval` or `-remoteWrite.streamAggr.dedupInterval`. 2. To deduplicate and aggregate metrics that match the rule `match` filters --- using `-remoteWrite.streamAggr.config` and specifiying `dedup_interval` option in [stream aggregation config](https://docs.victoriametrics.com/stream-aggregation/#stream-aggregation-config). 3. To deduplicate all the received data while having `streamAggr.config` for some metrics --- no way for a single vmagent now, need to set up two level vmagents This PR implements case3. --------- Co-authored-by: Roman Khavronenko <roman@victoriametrics.com> |
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| _index.md | ||
| CHANGELOG.md | ||
| CHANGELOG_2020.md | ||
| CHANGELOG_2021.md | ||
| CHANGELOG_2022.md | ||
| CHANGELOG_2023.md | ||