leventov commented on a change in pull request #6699: release mmap immediately
after merge indexes
URL: https://github.com/apache/incubator-druid/pull/6699#discussion_r242067045
##########
File path:
server/src/main/java/org/apache/druid/segment/realtime/appenderator/AppenderatorImpl.java
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@@ -716,8 +717,20 @@ private DataSegment mergeAndPush(final SegmentIdentifier
identifier, final Sink
closer.register(segmentAndCloseable.rhs);
}
- mergedFile = indexMerger.mergeQueryableIndex(
- indexes,
Review comment:
@clintropolis it's possible to use `O_DIRECT` already, obtain a raw pointer
from `mmap()` and wrap as https://github.com/DataSketches/memory.
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