viirya commented on a change in pull request #27690:
URL: https://github.com/apache/spark/pull/27690#discussion_r446485414
##########
File path:
sql/hive/src/main/scala/org/apache/spark/sql/hive/execution/SaveAsHiveFile.scala
##########
@@ -97,12 +99,38 @@ private[hive] trait SaveAsHiveFile extends
DataWritingCommand {
options = Map.empty)
}
- protected def getExternalTmpPath(
+ // Mostly copied from Context.java#getMRTmpPath of Hive 2.3.
+ // Visible for testing.
+ private[execution] def getNonBlobTmpPath(
+ hadoopConf: Configuration,
+ sessionScratchDir: String,
+ scratchDir: String): Path = {
+
+ // Hive's getMRTmpPath uses nonLocalScratchPath + '-mr-10000',
+ // which is ruled by 'hive.exec.scratchdir' including file system.
+ // This is the same as Spark's #oldVersionExternalTempPath.
+ // Only difference between #oldVersionExternalTempPath and Hive 2.3.0's is
HIVE-7090.
+ // HIVE-7090 added user_name/session_id on top of 'hive.exec.scratchdir'
+ // Here it uses session_path unless it's emtpy, otherwise uses scratchDir.
+ val sessionPath = if (!sessionScratchDir.isEmpty) sessionScratchDir else
scratchDir
+ val mrScratchDir = oldVersionExternalTempPath(new Path(sessionPath),
hadoopConf, sessionPath)
Review comment:
`oldVersionExternalTempPath` will use the first `Path` parameter's
scheme to create the temp path.
Does it guarantee `Path(sessionPath)` always uses HDFS scheme here?
If `sessionPath` is a HDFS path, it is ok. But if we use `scratchDir` as
`sessionPath` here, it will be something like `Path("/tmp/hive")`, is it still
HDFS scheme?
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
[email protected]
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
