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https://issues.apache.org/jira/browse/FLINK-2111?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15033810#comment-15033810
]
ASF GitHub Bot commented on FLINK-2111:
---------------------------------------
Github user mjsax commented on a diff in the pull request:
https://github.com/apache/flink/pull/750#discussion_r46287141
--- Diff:
flink-clients/src/main/java/org/apache/flink/client/CliFrontend.java ---
@@ -569,6 +571,69 @@ public int compare(JobStatusMessage o1,
JobStatusMessage o2) {
}
/**
+ * Executes the STOP action.
+ *
+ * @param args Command line arguments for the stop action.
+ */
+ protected int stop(String[] args) {
+ LOG.info("Running 'stop' command.");
+
+ StopOptions options;
+ try {
+ options = CliFrontendParser.parseStopCommand(args);
+ }
+ catch (CliArgsException e) {
+ return handleArgException(e);
+ }
+ catch (Throwable t) {
+ return handleError(t);
+ }
+
+ // evaluate help flag
+ if (options.isPrintHelp()) {
+ CliFrontendParser.printHelpForStop();
+ return 0;
+ }
+
+ String[] stopArgs = options.getArgs();
+ JobID jobId;
+
+ if (stopArgs.length > 0) {
+ String jobIdString = stopArgs[0];
+ try {
+ jobId = new
JobID(StringUtils.hexStringToByte(jobIdString));
+ }
+ catch (Exception e) {
+ LOG.error("Error: The value for the Job ID is
not a valid ID.");
--- End diff --
Will change it only here. (Just not a big fan of it, as the other code will
potentially stay "old" forever. Nobody just rewrites it "just for fun" -- if
not addressed now as we are aware of the old pattern, we will forget about
updated the other parts)
> Add "stop" signal to cleanly shutdown streaming jobs
> ----------------------------------------------------
>
> Key: FLINK-2111
> URL: https://issues.apache.org/jira/browse/FLINK-2111
> Project: Flink
> Issue Type: Improvement
> Components: Distributed Runtime, JobManager, Local Runtime,
> Streaming, TaskManager, Webfrontend
> Reporter: Matthias J. Sax
> Assignee: Matthias J. Sax
> Priority: Minor
>
> Currently, streaming jobs can only be stopped using "cancel" command, what is
> a "hard" stop with no clean shutdown.
> The new introduced "stop" signal, will only affect streaming source tasks
> such that the sources can stop emitting data and shutdown cleanly, resulting
> in a clean shutdown of the whole streaming job.
> This feature is a pre-requirment for
> https://issues.apache.org/jira/browse/FLINK-1929
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