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ambari-server/src/main/resources/common-services/YARN/2.1.0.2.0/package/scripts/resourcemanager.py (line 250) <https://reviews.apache.org/r/43948/#comment181983> This will result in slow down on those wasb clusters, the thing we tried to reduce recently. Any opertaions with hadoop binary are really slow there Can we check if directory is in /var/lib/ambari-agent/data/.hdfs_resource_ignore before doing that. (basically if it's precreated - that's what we do there) cc @Sumit Mohanty - Andrew Onischuk On Feb. 24, 2016, 4:39 p.m., Sebastian Toader wrote: > > ----------------------------------------------------------- > This is an automatically generated e-mail. To reply, visit: > https://reviews.apache.org/r/43948/ > ----------------------------------------------------------- > > (Updated Feb. 24, 2016, 4:39 p.m.) > > > Review request for Ambari, Alejandro Fernandez, Andrew Onischuk, Sumit > Mohanty, and Sid Wagle. > > > Bugs: AMBARI-15158 > https://issues.apache.org/jira/browse/AMBARI-15158 > > > Repository: ambari > > > Description > ------- > > If ATS is installed than Resource Manager after starting will check if the > directories where ATS will store time line data for active and completed > applications exists in DFS. There migh tbe cases when RM comes up much > earlier than ATS creating these directories. In these situations RM will stop > with "IOException: /ats/active does not exist" error message. > > In order to avoid this situation the pythin script responsible for starting > RM component has been modified to check the existence of these directories > upfront before the RM process is started. This check is performed only if ATS > is installed and have either > yarn.timeline-service.entity-group-fs-store.active-dir or > yarn.timeline-service.entity-group-fs-store.done-dir set. > > > Diffs > ----- > > > ambari-server/src/main/resources/common-services/YARN/2.1.0.2.0/package/scripts/params_linux.py > 2ef404d > > ambari-server/src/main/resources/common-services/YARN/2.1.0.2.0/package/scripts/resourcemanager.py > ec7799e > > Diff: https://reviews.apache.org/r/43948/diff/ > > > Testing > ------- > > Manual testing: > 1. Created secure/non-secure clusters with Blueprint where NN, RM and ATS > were deployed to different nodes. This was tested with both cases when HDFS > has webhdfs enabled and disabled. > 2. Created a cluster using the UI where NN, RM and ATS were deployed to > different nodes. After the cluster was kerberized and was tested with both > cases when HDFS has webhdfs enabled and disabled. > > Python tests results: > ---------------------------------------------------------------------- > Total run:902 > Total errors:0 > Total failures:0 > OK > > > Thanks, > > Sebastian Toader > >
