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Fix compaction_job.cc division by zero

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Summary:
Fix division by zero in compaction_job.cc
Closes https://github.com/facebook/rocksdb/pull/1575

Differential Revision: D4240818

Pulled By: IslamAbdelRahman

fbshipit-source-id: a8bc757
This commit is contained in:
Islam AbdelRahman 2016-11-28 16:31:41 -08:00 committed by Facebook Github Bot
parent 01eabf7375
commit 13e66a8f51
1 changed files with 1 additions and 2 deletions
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3
db/compaction_job.cc
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@ -484,9 +484,8 @@ void CompactionJob::GenSubcompactionBoundaries() {
static_cast<uint64_t>(db_options_.max_subcompactions), static_cast<uint64_t>(db_options_.max_subcompactions),
max_output_files}); max_output_files});
double mean = sum * 1.0 / subcompactions;
if (subcompactions > 1) { if (subcompactions > 1) {
double mean = sum * 1.0 / subcompactions;
// Greedily add ranges to the subcompaction until the sum of the ranges' // Greedily add ranges to the subcompaction until the sum of the ranges'
// sizes becomes >= the expected mean size of a subcompaction // sizes becomes >= the expected mean size of a subcompaction
sum = 0; sum = 0;