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Subject [GitHub] [spark] juliuszsompolski commented on a change in pull request #25718: [SPARK-28373][DOCS][WebUI] JDBC/ODBC Server Tab
Date Tue, 10 Sep 2019 10:27:48 GMT
juliuszsompolski commented on a change in pull request #25718: [SPARK-28373][DOCS][WebUI] JDBC/ODBC
Server Tab

 File path: docs/
 @@ -369,3 +369,44 @@ The web UI includes a Streaming tab if the application uses Spark streaming.
 scheduling delay and processing time for each micro-batch in the data stream, which can be
 for troubleshooting the streaming application.
+## JDBC/ODBC Server Tab
+We can see this tab when Spark is running as a [distributed SQL engine](sql-distributed-sql-engine.html)
and shows information about sessions and SQL jobs submitted.
+At the beginning of the page is the server start time.
+<p style="text-align: center;">
+  <img src="img/JDBCServer1.png" width="40%" title="JDBC/ODBC Header" alt="JDBC/ODBC Header">
+The first section contains information of active and finished sessions with some information.
+* User and IP of the connection.
+* Session id link to access to session info.
+* Start time, finish time and duration of the session.
+* Total jobs submitted in this session.
+<p style="text-align: center;">
+  <img src="img/JDBCServer2.png" title="JDBC/ODBC sessions" alt="JDBC/ODBC sessions">
+The second section has the SQL statistics of the submitted  jobs.
+* **User** that submit the job.
+* **Job id** link to [jobs tab](web-ui.html#jobs-tab).
+* **Group id** of the query that group all jobs together. An application can cancel all running
jobs using this group id.
+* **Start time** of the process.
+* **Finish time** of the execution, before fetching the results.
+* **Close time** of the process after fetching the results.
 Review comment:
   Maybe `process` -> `operation` or `statement` here and in Start Time?
   Edit: Of the two I think I slightly prefer `operation`

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