steveloughran commented on code in PR #38980:
URL: https://github.com/apache/spark/pull/38980#discussion_r1044322385
##########
core/src/main/scala/org/apache/spark/internal/io/SparkHadoopWriterUtils.scala:
##########
@@ -47,11 +47,22 @@ object SparkHadoopWriterUtils {
* @return a job ID
*/
def createJobID(time: Date, id: Int): JobID = {
+ val jobTrackerID = createJobTrackerID(time)
+ createJobID(jobTrackerID, id)
+ }
+
+ /**
+ * Create a job ID.
Review Comment:
how about extending the comment here by noting that the job id needs to be
unique across all jobs (linking to SPARK-33402) and consistently across places
used (SPARK-26873 + SPARK-41448). That way, whoever next goes near the code
knows what is needed
##########
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/FileFormatWriter.scala:
##########
@@ -201,14 +201,14 @@ object FileFormatWriter extends Logging {
rdd
}
- val jobIdInstant = new Date().getTime
+ val jobTrackerID = SparkHadoopWriterUtils.createJobTrackerID(new Date())
Review Comment:
i must have missed this -but also we've not had any reports of the timstamp
clash surfacing.
that's probably because the s3a and abfs/gcs committers all pick up the uuid
in "spark.sql.sources.writeJobUUID" in preference to anything else, and they
are being generated uniquely
##########
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/v2/FileWriterFactory.scala:
##########
@@ -29,6 +29,9 @@ import
org.apache.spark.sql.execution.datasources.{DynamicPartitionDataSingleWri
case class FileWriterFactory (
description: WriteJobDescription,
committer: FileCommitProtocol) extends DataWriterFactory {
+
+ private val jobId = SparkHadoopWriterUtils.createJobID(new Date, 0)
+
Review Comment:
I wonder if a uuid should be created here which is then passed down in that
"spark.sql.sources.writeJobUUID" option in `createTaskAttemptContext()`. It
would be consistent with the rest and the mapreduce manifest committer would
pick it up. (so would the s3a one, but as you can't do dynamic partitioning
there it's less relevant)
--
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.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
