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Posted to jira@kafka.apache.org by GitBox <gi...@apache.org> on 2020/08/04 16:55:53 UTC
[GitHub] [kafka] lbradstreet opened a new pull request #9123: MINOR: optimize fetchablePartitions check by performing cheap check first
lbradstreet opened a new pull request #9123:
URL: https://github.com/apache/kafka/pull/9123
When the consumer fetches a lot of partitions at once the isAvailable
check can become expensive due to a high number of contains check. We
might as well perform the isFetchable check first as this is clearly much
cheaper.
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[GitHub] [kafka] lbradstreet edited a comment on pull request #9123: MINOR: optimize fetchablePartitions check by performing cheap check first
Posted by GitBox <gi...@apache.org>.
lbradstreet edited a comment on pull request #9123:
URL: https://github.com/apache/kafka/pull/9123#issuecomment-668711747
From a profile fetching from 2500 partitions. This section of code takes 7.85%. In the happy case I would not expect this to improve, but we should see an improvement when partitions are unfetchable.
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[GitHub] [kafka] lbradstreet closed pull request #9123: MINOR: optimize fetchablePartitions check by performing cheap check first
Posted by GitBox <gi...@apache.org>.
lbradstreet closed pull request #9123:
URL: https://github.com/apache/kafka/pull/9123
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[GitHub] [kafka] lbradstreet commented on pull request #9123: MINOR: optimize fetchablePartitions check by performing cheap check first
Posted by GitBox <gi...@apache.org>.
lbradstreet commented on pull request #9123:
URL: https://github.com/apache/kafka/pull/9123#issuecomment-668711747
From a profile fetching from 2500 partitions. This section of code takes 7.85%.
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