Github user Sherry302 commented on a diff in the pull request:
https://github.com/apache/spark/pull/14659#discussion_r79695449
--- Diff: core/src/main/scala/org/apache/spark/util/Utils.scala ---
@@ -2420,6 +2420,44 @@ private[spark] object Utils extends Logging {
}
}
+private[spark] class CallerContext(
+ appName: Option[String] = None,
+ appID: Option[String] = None,
+ appAttemptID: Option[String] = None,
+ jobID: Option[Int] = None,
+ stageID: Option[Int] = None,
+ stageAttemptId: Option[Int] = None,
+ taskId: Option[Long] = None,
+ taskAttemptNumber: Option[Int] = None) extends Logging {
+
+ val AppName = if (appName.isDefined) s"_AppName_${appName.get}" else ""
--- End diff --
I have updated the PR to remove appName, and replace appName with something
to differentiate the context from ApplicationMaster vs Yarn Client vs Task. But
for AppID, I think it is better to keep it since in hdfs-audit.log, there is no
info about application. For example, the record below was produced when Task
did a read/write operation to HDFS, except `callerContext`, there is no other
info about application:
```
2016-09-14 22:29:06,526 INFO FSNamesystem.audit: allowed=true ugi=wyang
(auth:SIMPLE) ip=/127.0.0.1 cmd=open src=/lr_big.txt dst=null perm=null
proto=rpc
callerContext=SPARK_AppID_application_1473908768790_0007_JobID_0_StageID_0_0_TaskId_2_0
```
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