[GitHub] [carbondata] ajantha-bhat commented on a change in pull request #3433: [CARBONDATA-3570] Change task number to jobid+taskid for FileFormat

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ajantha-bhat commented on a change in pull request #3433: [CARBONDATA-3570] Change task number to jobid+taskid for FileFormat
URL: https://github.com/apache/carbondata/pull/3433#discussion_r342429257
 
 

 ##########
 File path: integration/spark-datasource/src/main/scala/org/apache/spark/sql/carbondata/execution/datasources/SparkCarbonFileFormat.scala
 ##########
 @@ -154,8 +154,11 @@ class SparkCarbonFileFormat extends FileFormat
           path
         }
         context.getConfiguration.set("carbon.outputformat.writepath", updatedPath)
+        // "jobid"+"x"+"taskid", task retry should have same task number
         context.getConfiguration.set("carbon.outputformat.taskno",
-          UUID.randomUUID().toString.replace("-", ""))
+          context.getTaskAttemptID.getJobID.getJtIdentifier +
+          context.getTaskAttemptID.getJobID.getId
+          + 'x' + context.getTaskAttemptID.getTaskID.getId)
 
 Review comment:
   @jackylk
   a. 'x' is used to separate jobid and task id.
   b. we cannot use logic from carbondata table as taskid, in this case it will be just split index. And this id will be serialized and send to executor. So, during task retry it will use same id. However in case of file format, it was using UUID for each task.
   

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