cloud-fan commented on a change in pull request #25299: [SPARK-27651][Core] Avoid the network when shuffle blocks are fetched from the same host URL: https://github.com/apache/spark/pull/25299#discussion_r319474398
########## File path: core/src/main/scala/org/apache/spark/storage/BlockManager.scala ########## @@ -206,6 +206,8 @@ private[spark] class BlockManager( new BlockManager.RemoteBlockDownloadFileManager(this) private val maxRemoteBlockToMem = conf.get(config.MAX_REMOTE_BLOCK_SIZE_FETCH_TO_MEM) + private val executorIdToLocalDirsCache = new mutable.HashMap[String, Array[String]]() Review comment: when do we update it? e.g. what if an executor is down. ---------------------------------------------------------------- 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: us...@infra.apache.org With regards, Apache Git Services --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org