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Adding upgrade guide for recording rules (#4751)
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Signed-off-by: Danny Kopping <danny.kopping@grafana.com>
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Danny Kopping authored Nov 16, 2021
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Expand Up @@ -260,6 +260,17 @@ cortex_runtime_config* -> loki_runtime_config*
cortex_chunks_store* -> loki_chunks_store*
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#### Recording rules storage is now durable
* [4344](https://github.com/grafana/loki/pull/4344) **dannykopping**: per-tenant WAL
Previously, samples generated by recording rules would only be buffered in memory before being remote-written to Prometheus; from this
version, the `ruler` now writes these samples to a per-tenant Write-Ahead Log for durability. More details about the
per-tenant WAL can be found [here](https://grafana.com/docs/loki/latest/operations/recording-rules/).
The `ruler` now requires persistent storage - please see the
[Operations](https://grafana.com/docs/loki/latest/operations/recording-rules/#deployment) page for more details about deployment.
### Promtail
The following changes pertain to upgrading Promtail.
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