KYLIN-4307 WritrConflictException when build cube by layer

[zhangayqian]

No description provided.

[coveralls]

Pull Request Test Coverage Report for Build 5635

• 6 of 12 (50.0%) changed or added relevant lines in 1 file are covered.
• 3 unchanged lines in 2 files lost coverage.
• Overall coverage increased (+0.002%) to 27.496%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
core-job/src/main/java/org/apache/kylin/job/dao/ExecutableDao.java	6	12	50.0%

Files with Coverage Reduction	New Missed Lines	%
core-dictionary/src/main/java/org/apache/kylin/dict/lookup/cache/RocksDBLookupTable.java	1	81.08%
core-job/src/main/java/org/apache/kylin/job/dao/ExecutableDao.java	2	28.15%

Totals
Change from base Build 5634:	0.002%
Covered Lines:	24193
Relevant Lines:	87986

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💛 - Coveralls

[codecov-io]

Codecov Report

Merging #1107 into master will decrease coverage by 0.02%.
The diff coverage is 41.66%.

@@             Coverage Diff              @@
##             master    #1107      +/-   ##
============================================
- Coverage     25.06%   25.03%   -0.03%     
- Complexity     6224     6225       +1     
============================================
  Files          1440     1440              
  Lines         87882    87986     +104     
  Branches      12291    12311      +20     
============================================
+ Hits          22026    22029       +3     
- Misses        63696    63796     +100     
- Partials       2160     2161       +1

Impacted Files	Coverage Δ	Complexity Δ
...n/java/org/apache/kylin/job/dao/ExecutableDao.java	26.47% <41.66%> (-1.05%)	24 <2> (ø)
...rg/apache/kylin/cube/inmemcubing/MemDiskStore.java	69.3% <0%> (-0.92%)	7% <0%> (ø)
...c/main/java/org/apache/kylin/cube/CubeSegment.java	48.93% <0%> (-0.41%)	65% <0%> (+1%)
...ain/java/org/apache/kylin/engine/mr/CubingJob.java	1.56% <0%> (-0.32%)	2% <0%> (ø)
.../java/org/apache/kylin/common/KylinConfigBase.java	12.32% <0%> (-0.02%)	44% <0%> (ø)
.../engine/mr/steps/UpdateCubeInfoAfterBuildStep.java	0% <0%> (ø)	0% <0%> (ø)	⬇️
...apache/kylin/engine/mr/common/CubeStatsReader.java	0% <0%> (ø)	0% <0%> (ø)	⬇️
.../engine/mr/steps/UpdateCubeInfoAfterMergeStep.java	0% <0%> (ø)	0% <0%> (ø)	⬇️
...c/main/java/org/apache/kylin/cube/CubeManager.java	36.59% <0%> (+0.1%)	44% <0%> (ø)	⬇️
... and 1 more

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[nichunen]

LGTM