Yes. JobTracker and TaskTracker are gone from all the 2.x release lines. MapReduce is an application on top of YARN. That is per job - launches, starts and finishes after it is done with its work. Once it is done, you can go look at it in the MapReduce specific JobHistoryServer.
+Vinod On Mar 6, 2014, at 1:11 PM, Jane Wayne <jane.wayne2...@gmail.com> wrote: > i recently made the switch from hadoop 0.20.x to hadoop 2.3.0 (yes, big > leap). i was wondering if there is a way to view my jobs now via a web UI? > i used to be able to do this by accessing the following URL > > http://hadoop-cluster:50030/jobtracker.jsp > > however, there is no more job tracker monitoring page here. > > furthermore, i am confused about MapReduce as an application running on top > of YARN. so the documentation says MapReduce is just an application running > on YARN. if that is true, how come i do not see MapReduce as an application > on the ResourceManager web UI? > > http://hadoop-cluster:8088/cluster/apps > > is this because MapReduce is NOT a long-running app? meaning, a MapReduce > job will only show up as an app in YARN when it is running? (please bear > with me, i'm still adjusting to this new design). > > any help/pointer is appreciated. -- CONFIDENTIALITY NOTICE NOTICE: This message is intended for the use of the individual or entity to which it is addressed and may contain information that is confidential, privileged and exempt from disclosure under applicable law. If the reader of this message is not the intended recipient, you are hereby notified that any printing, copying, dissemination, distribution, disclosure or forwarding of this communication is strictly prohibited. If you have received this communication in error, please contact the sender immediately and delete it from your system. Thank You.
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