Github user srowen commented on a diff in the pull request:
https://github.com/apache/spark/pull/7463#discussion_r34873851
--- Diff: docs/running-on-yarn.md ---
@@ -68,9 +68,9 @@ In YARN terminology, executors and application masters
run inside "containers".
yarn logs -applicationId <app ID>
-will print out the contents of all log files from all containers from the
given application. You can also view the container log files directly in HDFS
using the HDFS shell or API. The directory where they are located can be found
by looking at your YARN configs (`yarn.nodemanager.remote-app-log-dir` and
`yarn.nodemanager.remote-app-log-dir-suffix`).
+will print out the contents of all log files from all containers from the
given application. You can also view the container log files directly in HDFS
using the HDFS shell or API. The directory where they are located can be found
by looking at your YARN configs (`yarn.nodemanager.remote-app-log-dir` and
`yarn.nodemanager.remote-app-log-dir-suffix`). The logs are also available on
Web UI. You need have both the Spark history server and the MR history server
running and configure `yarn.log.server.url` in yarn-site.xml properly. The log
url on the Spark history server UI will redirect you to the MR history server
to show the aggregated logs.
--- End diff --
Minor text updates: MR history server -> MapReduce History Server. I'd
hyperlink one of them too. url -> URL. back-tick `yarn-site.xml` It would be
nice to link through to YARN docs that would describe these parameters too, if
possible.
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