Query all ingesters to mitigate 404s on rollout#557
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annanay25 merged 8 commits intografana:masterfrom Mar 2, 2021
Merged
Query all ingesters to mitigate 404s on rollout#557annanay25 merged 8 commits intografana:masterfrom
annanay25 merged 8 commits intografana:masterfrom
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Signed-off-by: Annanay <annanayagarwal@gmail.com>
Signed-off-by: Annanay <annanayagarwal@gmail.com>
annanay25
requested review from
dgzlopes,
joe-elliott and
mdisibio
as code owners
joe-elliott
requested changes
Feb 26, 2021
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| reqs := make([]*http.Request, s.queryShards) | ||
| for i := 0; i < len(s.blockBoundaries)-1; i++ { | ||
| for i := 0; i < s.queryShards; i++ { |
Collaborator
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instead of creating block boundaries, it would be a lot cleaner to make a method that created a slice of structs that represented the query. like:
type queryParams struct {
queryShards bool
startBlock []byte
endBlock []byte
}
that would simplify this logic quite a bit and would be much easier to test as well.
Signed-off-by: Annanay <annanayagarwal@gmail.com>
Signed-off-by: Annanay <annanayagarwal@gmail.com>
Signed-off-by: Annanay <annanayagarwal@gmail.com>
joe-elliott
approved these changes
Mar 1, 2021
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joe-elliott
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joe-elliott
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Adding an approval b/c I think this is basically done, but there are a few nits.
Signed-off-by: Annanay <annanayagarwal@gmail.com>
Signed-off-by: Annanay <annanayagarwal@gmail.com>
Signed-off-by: Annanay <annanayagarwal@gmail.com>
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Signed-off-by: Annanay annanayagarwal@gmail.com
What this PR does:
This is an experimental PR to check if querying all ingesters helps mitigate 404s on rollouts/scaleups. Will also be monitoring performance as it queries a lot more ingesters every time.
The PR also simplifies the sharding logic and adds a QueryMode at the Querier. This can be set to "ingesters" / "blocks" / "all" (default) and will only query the specified components.
Notez:
Which issue(s) this PR fixes:
Attempts to fix #284 #38
Checklist
CHANGELOG.mdupdated - the order of entries should be[CHANGE],[FEATURE],[ENHANCEMENT],[BUGFIX]