leh created KYLIN-3953:
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             Summary: cube run many building instances,but dict file 
locked,failed to acquire lock
                 Key: KYLIN-3953
                 URL: https://issues.apache.org/jira/browse/KYLIN-3953
             Project: Kylin
          Issue Type: Bug
          Components: Storage - HBase
    Affects Versions: v2.6.1
         Environment: cdh57-hadoop, kylin 2.6.1
            Reporter: leh


when i build the cube history data for many days,and run many instances in 
monitor, but hang out the step" #4 Step Name: Build Dimension Dictionary"

kylin.log as follow:

2019-04-12 11:20:28,519 DEBUG [Scheduler 635400189 Job 
b66ccafa-a2ce-621d-b76d-bac2b16bcca3-240] util.ZookeeperDistributedLock:147 : 
240-156...@xxx.host-web1.com trying to lock 
/kylin/kylin_metadata/dict/DEFAULT.APP_STRATEGY_ADS_VIEW_BASE_INFO_DI_DURATION_CUID/lock
2019-04-12 11:20:28,575 DEBUG [Scheduler 635400189 Job 
b66ccafa-a2ce-621d-b76d-bac2b16bcca3-240] util.ZookeeperDistributedLock:152 : 
240-156...@xxx.host-web1.com see 
/kylin/kylin_metadata/dict/DEFAULT.APP_STRATEGY_ADS_VIEW_BASE_INFO_DI_DURATION_CUID/lock
 is already locked
2019-04-12 11:20:28,609 DEBUG [Scheduler 635400189 Job 
b66ccafa-a2ce-621d-b76d-bac2b16bcca3-240] util.ZookeeperDistributedLock:162 : 
240-156...@xxx.host-web1.com failed to acquire lock at 
/kylin/kylin_metadata/dict/DEFAULT.APP_STRATEGY_ADS_VIEW_BASE_INFO_DI_DURATION_CUID/lock,
 which is held by 145-156...@xxx.host-web1.com

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kylin.properties:

## Max count of concurrent jobs running
kylin.job.max-concurrent-jobs=50

kylin.cube.max-building-segments=62

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and the same cube ,can I build many instance parallismly? and how to avoid this 
question?



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