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https://issues.apache.org/jira/browse/KYLIN-3617?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16654566#comment-16654566
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Chao Long commented on KYLIN-3617:
----------------------------------
An error occurred when I ran a CI test, I think it result from this change.
2018-10-18 10:02:31,313 WARN [pool-39-thread-1]
threadpool.DefaultFetcherRunner:101 : Job Fetcher caught a exception
java.lang.IllegalArgumentException: there is no related output for job
id:job113fdd584-4c64-c352-346d-e62c8ca8c330
at
com.google.common.base.Preconditions.checkArgument(Preconditions.java:92)
at
org.apache.kylin.job.execution.ExecutableManager.getOutputDigest(ExecutableManager.java:175)
at
org.apache.kylin.job.impl.threadpool.DefaultFetcherRunner.run(DefaultFetcherRunner.java:63)
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
> Reduce number of visiting metastore for job scheduler
> -----------------------------------------------------
>
> Key: KYLIN-3617
> URL: https://issues.apache.org/jira/browse/KYLIN-3617
> Project: Kylin
> Issue Type: Improvement
> Components: Job Engine
> Affects Versions: v2.4.1
> Reporter: nichunen
> Assignee: nichunen
> Priority: Major
> Fix For: v2.6.0
>
>
> For KYLIN-3470 introduced cache for jobs' metadata, it's also can be used in
> job scheduler to reduce the pressure on metastore
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