[ https://issues.apache.org/jira/browse/YARN-2246?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14312927#comment-14312927 ]
Zhijie Shen commented on YARN-2246: ----------------------------------- Deverej, thanks for the explanation! It makes sense to me. I've tried the patch, and it seems to work fine for MR case. However, I'm wondering it's a general solution for all applications. Now in the patch, *res* will still be appended to the tracking url for running. It's correct because MR set the tracking url to {{http(s)://am host:am port}}. The tracking url just has the authority, but no section else afterwards. So when you requesting resource under {{http(s)://proxy host:proxy port/proxy/appId/static/yarn.css}}, it will be translated to {{http(s)://am host:am port/static/yarn.css}}, which is correct. However, if unfortunately your resource is not at the root, but at {{http(s)://am host:am port/base}}, and you use it as the tracking url, your proxy url will become {{http(s)://proxy host:proxy port/proxy/appId/base/static/yarn.css}}, and *toFetch* will be finally translated to {{http(s)://am host:am port/base/base/static/yarn.css}}, which is wrong. This is why the tracking url is wrong for the completed apps, which has been updated to {{http(s)://jhs host:jhs port/jobhistory/job/jobId}}. IMHO, the proper fix should be that: If the tracking url is {{http(s)://tracking authority/S1/Sk/.../Sk}}, it should be *still* translated to the proxy url {{http(s)://proxy authority/proxy/appId/S1/Sk/.../Sk}}. When the proxy url is translated to the track url, we should not just replace authority, but mapping the whole {{http(s)://proxy authority/proxy/appId/S1/Sk/.../Sk'}} to {{http(s)://tracking authority/S1/Sk/.../Sk'}} when {{k' <= k}}, and to {{http(s)://tracking authority/S1/Sk/.../Sk/Sk+1/Sk+2/.../Sk'}} when {{k' > k}}. > Job History Link in RM UI is redirecting to the URL which contains Job Id > twice > ------------------------------------------------------------------------------- > > Key: YARN-2246 > URL: https://issues.apache.org/jira/browse/YARN-2246 > Project: Hadoop YARN > Issue Type: Bug > Components: webapp > Reporter: Devaraj K > Assignee: Devaraj K > Fix For: 2.7.0 > > Attachments: MAPREDUCE-4064-1.patch, MAPREDUCE-4064.patch, > YARN-2246.patch > > > {code:xml} > http://xx.x.x.x:19888/jobhistory/job/job_1332435449546_0001/jobhistory/job/job_1332435449546_0001 > {code} -- This message was sent by Atlassian JIRA (v6.3.4#6332)