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Karthik Kambatla updated YARN-2252: ----------------------------------- Summary: Intermittent failure of TestFairScheduler.testContinuousScheduling (was: Intermittent failure for testcase TestFairScheduler.testContinuousScheduling) > Intermittent failure of TestFairScheduler.testContinuousScheduling > ------------------------------------------------------------------ > > Key: YARN-2252 > URL: https://issues.apache.org/jira/browse/YARN-2252 > Project: Hadoop YARN > Issue Type: Bug > Components: scheduler > Affects Versions: trunk-win > Reporter: Ratandeep Ratti > Labels: hadoop2, scheduler, yarn > Attachments: YARN-2252-1.patch, yarn-2252-2.patch > > > This test-case is failing sporadically on my machine. I think I have a > plausible explanation for this. > It seems that when the Scheduler is being asked for resources, the resource > requests that are being constructed have no preference for the hosts (nodes). > The two mock hosts constructed, both have a memory of 8192 mb. > The containers(resources) being requested each require a memory of 1024mb, > hence a single node can execute both the resource requests for the > application. > In the end of the test-case it is being asserted that the containers > (resource requests) be executed on different nodes, but since we haven't > specified any preferences for nodes when requesting the resources, the > scheduler (at times) executes both the containers (requests) on the same node. -- This message was sent by Atlassian JIRA (v6.3.4#6332)