compact/planner: fix issue 6775 (thanos-io#7334)

* compact/planner: fix issue 6775 It doesn't make sense to vertically compact downsampled blocks so mark them with the no compact marker if downsampled blocks were detected in the plan. Seems like the Planner is the best place for this logic - I just repeated the previous pattern with the large index file filter. Signed-off-by: Giedrius Statkevičius <[email protected]> * CHANGELOG: add item Signed-off-by: Giedrius Statkevičius <[email protected]> --------- Signed-off-by: Giedrius Statkevičius <[email protected]>
jnyi · Oct 16, 2024 · c12cda1 · c12cda1
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -20,6 +20,8 @@ We use *breaking :warning:* to mark changes that are not backward compatible (re
 
 ### Changed
 
+- [#7334](https://github.com/thanos-io/thanos/pull/7334) Compactor: do not vertically compact downsampled blocks. Such cases are now marked with `no-compact-mark.json`. Fixes panic `panic: unexpected seriesToChunkEncoder lack of iterations`.
+
 ### Removed
 
 ## [v0.35.0](https://github.com/thanos-io/thanos/tree/release-0.35) - 02.05.2024