Peter Štibraný

Compactor interrupted during block upload leaves partial blocks in the storage forever

10

After compactor creates new blocks locally, it starts uploading new blocks to object storage. If compactor is interrupted in the middle of upload (eg. it is asked to shut down),...

Compactor can fail with "block with not healthy index found ... series have an average of 1.000 out-of-order chunks: 0.000 of these are exact duplicates (in terms of data and time range)" message

8

Compactor can fail to compact block with message like this: ``` msg="failed to compact user blocks" err="compaction: group 0@8712473450002685162: block with not healthy index found /data/compact/0@8712473450002685162/01EJEXEW6XQ37G17Q4JH9M2KF1; Compaction level 1; Labels:...

Slow unit tests

2

Some of our tests are slow. Here is list of packages with tests that run above 5 seconds (from https://github.com/cortexproject/cortex/runs/2054589567 run). ``` 227.510s github.com/cortexproject/cortex/pkg/ring 213.005s github.com/cortexproject/cortex/pkg/querier 60.907s github.com/cortexproject/cortex/pkg/ingester 60.674s github.com/cortexproject/cortex/pkg/storegateway...

Distributor push wrapper should only receive unforwarded samples.

1

#### What this PR does #### Which issue(s) this PR fixes or relates to According to documentation `DistributorPushWrapper` should only receive samples that were not forwarded by distributor. PR #2603...

Docs: document that instances registered in the same ring running need different instance-id

1

Instances registered in the same ring (eg. distributors and distributor-ring) need to have different "instance ID" used as key in the ring. Normally instance-id is computed from hostname, but if...

Improve documentation for importing thanos blocks to Mimir

1

Improve documentation for uploading Thanos blocks to Mimir. Steps shared by Taylor Mutch in the [Slack thread](https://grafana.slack.com/archives/C039863E8P7/p1664801229911479?thread_ts=1664798493.102809&cid=C039863E8P7) are: > I use GCS but it's applicable to any block storage >...

#### What this PR does This PR updates `merged-approved-pr-branch-to-main.sh` script to never do fast-forward merge. This is what happened on last merge of `release-2.6` to `main`, as there were no...

We would like to introduce support for "ephemeral storage" in Mimir. This is in-memory storage of series in ingesters. Series are removed from ephemeral storage after a short period of...

Change default evaluation delay of ruler

3

Ruler uses "evaluation delay" to compute the evaluation timestamp of queries that ruler executes as part of running the rule group evaluation. With evaluation delay of say 5 minutes, when...

Average time to evaluate rule groups is higher when using streaming of chunks

8

When using streaming of chunks as implemented in https://github.com/cortexproject/cortex/pull/3889, average time to evaluate rule groups goes up.