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Update compaction score right after CompactFiles forms a compaction

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Summary:
This is a follow-up patch of https://reviews.facebook.net/D54891.
As the information about files being compacted will also be used
when making compaction decision, it is necessary to update the compaction
score when a compaction plan has been made but not yet execute.

This patch adds a missing call to update the compaction score in
CompactFiles().

Test Plan: compact_files_test

Reviewers: sdong, IslamAbdelRahman, kradhakrishnan, yiwu, andrewkr

Reviewed By: andrewkr

Subscribers: andrewkr, dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D55227
This commit is contained in:
Yueh-Hsuan Chiang 2016-03-10 14:34:28 -08:00
parent aa3f02d50c
commit 765597fa78
1 changed files with 11 additions and 0 deletions
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11
db/db_impl.cc
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@ -1844,6 +1844,17 @@ Status DBImpl::CompactFilesImpl(
// support for CompactFiles, we should have CompactFiles API
// pass a pointer of CompactionJobStats as the out-value
// instead of using EventListener.
// Creating a compaction influences the compaction score because the score
// takes running compactions into account (by skipping files that are already
// being compacted). Since we just changed compaction score, we recalculate it
// here.
{
CompactionOptionsFIFO dummy_compaction_options_fifo;
version->storage_info()->ComputeCompactionScore(
*c->mutable_cf_options(), dummy_compaction_options_fifo);
}
compaction_job.Prepare();
mutex_.Unlock();