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Posted to commits@druid.apache.org by GitBox <gi...@apache.org> on 2019/01/22 23:37:39 UTC
[GitHub] surekhasaharan opened a new pull request #6901: Introduce published
segment cache in broker
surekhasaharan opened a new pull request #6901: Introduce published segment cache in broker
URL: https://github.com/apache/incubator-druid/pull/6901
This PR introduces a published segments cache on broker, as proposed in #6834 . This implements the "phase 1" of the proposal. Added a new class `MetadataSegmentView` which polls coordinator periodically to get published segments and maintains a synced copy of same in cache. Another change is to use `DataSegmentInterner#INTERNER` while storing `DataSegment` object in `ServerSelector` and `MetadataSegmentView` in order reuse the reference for overlapping segments.
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