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Hadoop QA commented on AMBARI-18407: ------------------------------------ {color:green}+1 overall{color}. Here are the results of testing the latest attachment http://issues.apache.org/jira/secure/attachment/12828708/AMBARI-18047.patch against trunk revision . {color:green}+1 @author{color}. The patch does not contain any @author tags. {color:green}+1 tests included{color}. The patch appears to include 4 new or modified test files. {color:green}+1 javac{color}. The applied patch does not increase the total number of javac compiler warnings. {color:green}+1 release audit{color}. The applied patch does not increase the total number of release audit warnings. {color:green}+1 core tests{color}. The patch passed unit tests in ambari-web. Test results: https://builds.apache.org/job/Ambari-trunk-test-patch/8687//testReport/ Console output: https://builds.apache.org/job/Ambari-trunk-test-patch/8687//console This message is automatically generated. > BE: /api/v1/persist/CLUSTER_CURRENT_STATUS takes more than 2s for > transferring 307KB response > --------------------------------------------------------------------------------------------- > > Key: AMBARI-18407 > URL: https://issues.apache.org/jira/browse/AMBARI-18407 > Project: Ambari > Issue Type: Bug > Components: ambari-web > Affects Versions: 2.1.0 > Reporter: Andrii Tkach > Assignee: Andrii Tkach > Priority: Critical > Fix For: 3.0.0 > > Attachments: AMBARI-18047.patch > > > Ambari UI when logging-in requests the persisted cluster status from the > /api/v1/persist/CLUSTER_CURRENT_STATUS call. On a 800 node cluster this takes > 2s or more to GET. > The majority of time is in the transfer of bytes. > A 3.8s call had a wait time (time to first byte) of 815ms, and content > download time of 2.98s. > We need to see if the download time can be improved. -- This message was sent by Atlassian JIRA (v6.3.4#6332)