Enforce max_buckets limit only in the final reduction phase #36152
Conversation
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
Given that we check the max buckets limit on each shard when collecting the buckets, and that non final reduction cannot add buckets (see elastic#35921), there is no point in counting and checking the number of buckets as part of non final reduction phases. Such check is still needed though in the final reduction phases to make sure that the number of returned buckets is not above the allowed threshold. Relates somehow to elastic#32125 as we will make use of non final reduction phases in CCS alternate execution mode and that increases the chance that this check trips for nothing when reducing aggs in each remote cluster.
Collaborator
|
Pinging @elastic/es-analytics-geo |
11 tasks
jimczi
approved these changes
Dec 3, 2018
Member
Author
|
thanks @jimczi ! |
javanna
added a commit
that referenced
this pull request
Dec 3, 2018
Given that we check the max buckets limit on each shard when collecting the buckets, and that non final reduction cannot add buckets (see #35921), there is no point in counting and checking the number of buckets as part of non final reduction phases. Such check is still needed though in the final reduction phases to make sure that the number of returned buckets is not above the allowed threshold. Relates somehow to #32125 as we will make use of non final reduction phases in CCS alternate execution mode and that increases the chance that this check trips for nothing when reducing aggs in each remote cluster.
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
4 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Outdated suggestions cannot be applied.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.
Given that we check the max buckets limit on each shard when collecting the buckets, and that non final reduction cannot add buckets (see #35921), there is no point in counting and checking the number of buckets as part of non final reduction phases.
Such check is still needed though in the final reduction phases to make sure that the number of returned buckets is not above the allowed threshold.
Relates somehow to #32125 as we will make use of non final reduction phases in CCS alternate execution mode and that increases the chance that this check trips for nothing when reducing aggs in each remote cluster.