enforce sharding defaults in period configs#2332
Merged
pracucci merged 4 commits intocortexproject:masterfrom Mar 26, 2020
Merged
enforce sharding defaults in period configs#2332pracucci merged 4 commits intocortexproject:masterfrom
pracucci merged 4 commits intocortexproject:masterfrom
Conversation
Signed-off-by: Owen Diehl <ow.diehl@gmail.com>
Signed-off-by: Owen Diehl <ow.diehl@gmail.com>
Signed-off-by: Owen Diehl <ow.diehl@gmail.com>
pracucci
approved these changes
Mar 26, 2020
| } | ||
|
|
||
| switch cfg.Schema { | ||
| case "v1", "v2", "v3", "v4", "v5", "v6", "v9": |
Contributor
There was a problem hiding this comment.
Even if I guess it doesn't cause any harm, to avoid any misunderstanding/misconfiguration from the user side, shouldn't we ensure the cfg.RowShards for these schemas is 0? Am I missing anything?
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
3 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
What this PR does:
This fixes a bug where the default shard factors were not set properly on
PeriodConfigs. It caused us to never update the period config’s shard factor (although the derived Schema, which is used in the store, has the default shard values applied — 16 starting in v10+).I introduced this bug while addressing the following:
#1878 (comment)
Discovery
We discovered this bug when we tried to enable
querier.parallelise-shardable-queries. It effectively turned that code path into a no-op because it didn't register any shard-ablePeriodConfigs(we don't specify overrides and use the derived default).The Fix
func (cfg *PeriodConfig) applyDefaults()function which mutates the associatedPeriodConfigby applying default values (currently only shard factor for appropriate schemas).PeriodConfig.Validate()This should ensure that once validated , configs are safe for further use.
/cc @gouthamve @cyriltovena
Signed-off-by: Owen Diehl ow.diehl@gmail.com