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Posted to github@beam.apache.org by GitBox <gi...@apache.org> on 2021/11/19 17:28:24 UTC

[GitHub] [beam] AydarZaynutdinov opened a new pull request #16026: [BEAM-13208][Playground] Separate stderr from stdout for code processing steps

AydarZaynutdinov opened a new pull request #16026:
URL: https://github.com/apache/beam/pull/16026


   [BEAM-13208]
   separate stdErr and stdOut for compile step
   
   ------------------------
   
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[GitHub] [beam] pabloem commented on pull request #16026: [BEAM-13208][Playground] Separate stderr from stdout for code processing steps

Posted by GitBox <gi...@apache.org>.
pabloem commented on pull request #16026:
URL: https://github.com/apache/beam/pull/16026#issuecomment-976130618


   can you rebase this please so I can visualize the diffs (and merge once it's ready) ? thanks!


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[GitHub] [beam] AydarZaynutdinov commented on pull request #16026: [BEAM-13208][Playground] Separate stderr from stdout for code processing steps

Posted by GitBox <gi...@apache.org>.
AydarZaynutdinov commented on pull request #16026:
URL: https://github.com/apache/beam/pull/16026#issuecomment-976237647


   R: @pabloem


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[GitHub] [beam] pabloem commented on a change in pull request #16026: [BEAM-13208][Playground] Separate stderr from stdout for code processing steps

Posted by GitBox <gi...@apache.org>.
pabloem commented on a change in pull request #16026:
URL: https://github.com/apache/beam/pull/16026#discussion_r755340821



##########
File path: playground/backend/internal/code_processing/code_processing.go
##########
@@ -110,20 +102,9 @@ func Process(ctx context.Context, cacheService cache.Cache, lc *fs_tool.LifeCycl
 	// run
 	logger.Infof("%s: Run() ...\n", pipelineId)
 	runCmd := executor.Run(ctxWithTimeout)
-
 	var runError bytes.Buffer
-	runOutput := &streaming.RunOutputWriter{Ctx: ctxWithTimeout, CacheService: cacheService, PipelineId: pipelineId}
-	runCmd.Stderr = &runError
-	runCmd.Stdout = runOutput
-	go func(cmd *exec.Cmd, successChannel chan bool, errChannel chan error, dataChannel chan interface{}) {
-		err := cmd.Run()
-		if err != nil {
-			errChannel <- err
-			successChannel <- false
-		} else {
-			successChannel <- true
-		}
-	}(runCmd, successChannel, errorChannel, dataChannel)
+	runOutput := streaming.RunOutputWriter{Ctx: ctxWithTimeout, CacheService: cacheService, PipelineId: pipelineId}

Review comment:
       some users may want to read stderr in the frontend as well as stdout, so maybe it makes sense to write that to the cache as well.
   if I remember correctly, LOG data is weitten to stderr, while only System.out.println-type data will be sent to stdout




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[GitHub] [beam] pabloem merged pull request #16026: [BEAM-13208][Playground] Separate stderr from stdout for code processing steps

Posted by GitBox <gi...@apache.org>.
pabloem merged pull request #16026:
URL: https://github.com/apache/beam/pull/16026


   


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