Using subring on getShardedRules when shuffle sharding#4466
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Signed-off-by: Alan Protasio <approtas@amazon.com>
Signed-off-by: Alan Protasio <approtas@amazon.com>
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Hi... Can i get some attention on this PR? Situation like #4459 makes 100% of the APIs fail right now. |
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Makes sense to me, thanks!
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…#4466) * Using subring on getShardedRules when shuffle sharding Signed-off-by: Alan Protasio <approtas@amazon.com> Signed-off-by: Manish Kumar Gupta <manishkg@microsoft.com>
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…#4466) * Using subring on getShardedRules when shuffle sharding Signed-off-by: Alan Protasio <approtas@amazon.com> Signed-off-by: Alvin Lin <alvinlin@amazon.com>
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What this PR does:
GetRules API should call only the rulers on the tenant's subring when sharding strategy is set to
ShardingStrategyShuffle.Right now we are calling all rulers in the
GetRulesapi even if the sharding strategy is set toShardingStrategyShuffle. In this case, we should only call the rules in the tenant subring as those rules are the only ones that can load rules from this tenant. This change is specially important as right now we need all the rulers in the ring to be available or cortex will return an error - this means that if we have shardSize = 3 but 100 rulers in total, we will return 5xx if any of the 100 rules are down (for instance during deployment), even though the callers rules are spread only on 3 of them.Which issue(s) this PR fixes:
Fixes #
Checklist
CHANGELOG.mdupdated - the order of entries should be[CHANGE],[FEATURE],[ENHANCEMENT],[BUGFIX]