Mridul Muralidharan created SPARK-36772: -------------------------------------------
Summary: FinalizeShuffleMerge fails with an exception due to attempt id not matching Key: SPARK-36772 URL: https://issues.apache.org/jira/browse/SPARK-36772 Project: Spark Issue Type: Bug Components: Shuffle Affects Versions: 3.2.0 Reporter: Mridul Muralidharan As part of driver request to external shuffle services (ESS) to finalize the merge, it also passes its [application attempt id|https://github.com/apache/spark/blob/3f09093a21306b0fbcb132d4c9f285e56ac6b43c/common/network-shuffle/src/main/java/org/apache/spark/network/shuffle/ExternalBlockStoreClient.java#L180] so that ESS can validate the request is from the correct attempt. This attempt id is fetched from the TransportConf passed in when creating the [ExternalBlockStoreClient|https://github.com/apache/spark/blob/67421d80b8935d91b86e8cd3becb211fa2abd54f/core/src/main/scala/org/apache/spark/SparkEnv.scala#L352] - and the transport conf leverages a [cloned copy|https://github.com/apache/spark/blob/0494dc90af48ce7da0625485a4dc6917a244d580/core/src/main/scala/org/apache/spark/network/netty/SparkTransportConf.scala#L47] of the SparkConf passed to it. Application attempt id is set as part of SparkContext [initialization|https://github.com/apache/spark/blob/67421d80b8935d91b86e8cd3becb211fa2abd54f/core/src/main/scala/org/apache/spark/SparkContext.scala#L586]. But this happens after driver SparkEnv has [already been created|https://github.com/apache/spark/blob/67421d80b8935d91b86e8cd3becb211fa2abd54f/core/src/main/scala/org/apache/spark/SparkContext.scala#L460]. Hence the attempt id that ExternalBlockStoreClient uses will always end up being -1 : which will not match the attempt id at ESS (which is based on spark.app.attempt.id) : resulting in merge finalization to always fail (" java.lang.IllegalArgumentException: The attempt id -1 in this FinalizeShuffleMerge message does not match with the current attempt id 1 stored in shuffle service for application ...") -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org