prakharjain09 commented on a change in pull request #27864: [SPARK-20732][CORE]
Decommission cache blocks to other executors when an executor is decommissioned
URL: https://github.com/apache/spark/pull/27864#discussion_r405531343
##########
File path: core/src/main/scala/org/apache/spark/storage/BlockManager.scala
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@@ -1829,7 +1895,50 @@ private[spark] class BlockManager(
data.dispose()
}
+ /**
+ * Class to handle block manager decommissioning retries
+ * It creates a Thread to retry offloading all RDD cache blocks
+ */
+ private class BlockManagerDecommissionManager {
+ @volatile private var stopped = false
+ private val cacheReplicationThread = new Thread {
+ override def run(): Unit = {
+ while (blockManagerDecommissioning && !stopped) {
+ try {
+ logDebug(s"Attempting to replicate all cached RDD blocks")
+ offloadRddCacheBlocks()
+ logInfo(s"Attempt to replicate all cached blocks done")
Review comment:
done.
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