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https://issues.apache.org/jira/browse/HIVE-19220?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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shengsiwei updated HIVE-19220:
------------------------------
Attachment: HIVE-19220.1.patch
> perfLogger = SessionState.getPerfLogger() in Driver.java need to combine
> ------------------------------------------------------------------------
>
> Key: HIVE-19220
> URL: https://issues.apache.org/jira/browse/HIVE-19220
> Project: Hive
> Issue Type: Improvement
> Affects Versions: 3.1.0
> Reporter: shengsiwei
> Assignee: shengsiwei
> Priority: Minor
> Attachments: HIVE-19220.1.patch
>
>
> I find duplicate code in Driver.java. We need to eliminate duplicate code to
> improve the simplicity of the code
>
> Before modification
> {code:java}
> PerfLogger perfLogger = null;
> if (!alreadyCompiled) {
> // compile internal will automatically reset the perf logger
> compileInternal(command, true);
> // then we continue to use this perf logger
> perfLogger = SessionState.getPerfLogger();
> } else {
> // reuse existing perf logger.
> perfLogger = SessionState.getPerfLogger();
> // Since we're reusing the compiled plan, we need to update its start time
> for current run
> plan.setQueryStartTime(perfLogger.getStartTime(PerfLogger.DRIVER_RUN));
> }
> {code}
>
> After modification
>
> {code:java}
> PerfLogger perfLogger = SessionState.getPerfLogger();
> if (!alreadyCompiled) {
> // compile internal will automatically reset the perf logger
> compileInternal(command, true);
> } else {
> // Since we're reusing the compiled plan, we need to update its start
> time for current run
>
> plan.setQueryStartTime(perfLogger.getStartTime(PerfLogger.DRIVER_RUN));
> }
> {code}
>
>
>
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