Hello Alexey Serbin, Kurt Deschler, Zoltan Martonka, Gabriella Lotz, Kudu
Jenkins,
I'd like you to reexamine a change. Please visit
http://gerrit.cloudera.org:8080/22338
to look at the new patch set (#4).
Change subject: [compaction] Release delta blocks memory early to avoid more
consumption.
......................................................................
[compaction] Release delta blocks memory early to avoid more consumption.
MajorDelta compaction relies on object scope to release the memory
used to store delta blocks that are read during the PrepareBatch phase
of the compaction operation. The use of delta blocks is till the point
when REDO mutations are applied to base data and corresponding UNDO
mutations are created for each REDO mutation.
This patch releases the memory as soon as compaction is done using
delta blocks. This will avoid unnecessary pressure on memory for the
rest of the compaction operation. This is also a precursor to MajorDelta
chunked compaction work.
Change-Id: I0c1eadcb8ad735fc92ac77f554934e606e4119ae
---
M src/kudu/tablet/delta_compaction.cc
M src/kudu/tablet/delta_iterator_merger.cc
M src/kudu/tablet/delta_iterator_merger.h
M src/kudu/tablet/delta_store.h
M src/kudu/tablet/deltafile.cc
M src/kudu/tablet/deltafile.h
M src/kudu/tablet/deltamemstore.h
7 files changed, 28 insertions(+), 1 deletion(-)
git pull ssh://gerrit.cloudera.org:29418/kudu refs/changes/38/22338/4
--
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Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I0c1eadcb8ad735fc92ac77f554934e606e4119ae
Gerrit-Change-Number: 22338
Gerrit-PatchSet: 4
Gerrit-Owner: Ashwani Raina <[email protected]>
Gerrit-Reviewer: Alexey Serbin <[email protected]>
Gerrit-Reviewer: Ashwani Raina <[email protected]>
Gerrit-Reviewer: Gabriella Lotz <[email protected]>
Gerrit-Reviewer: Kudu Jenkins (120)
Gerrit-Reviewer: Kurt Deschler <[email protected]>
Gerrit-Reviewer: Zoltan Martonka <[email protected]>
