bshashikant commented on issue #556: HDDS-3018. Fix TestContainerStateMachineFailures.java URL: https://github.com/apache/hadoop-ozone/pull/556#issuecomment-598058629 Thanks @timmylicheng . I think the problem seems to be arising out a race condition of sort. By the time, allocateBlock call comes to SCM, there is no pipeline of factor 1 . As a result of which allocateBlock call itself calls createPipeline and in the meantime, background thread creates the 1 node pipeline using up the dn, thereby failing allocateBlock call as the pipeline creation invoked as a part of allocateBlock failed, thereby failing the client write. What do you think?
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