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[SPARK-25181][CORE] Limit Thread Pool size in BlockManager Master and Slave endpoints #22176

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mukulmurthy wants to merge 1 commit into from
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[SPARK-25181][CORE] Limit Thread Pool size in BlockManager Master and Slave endpoints #22176

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3 changes: 2 additions & 1 deletion core/src/main/scala/org/apache/spark/storage/BlockManagerMasterEndpoint.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -54,7 +54,8 @@ class BlockManagerMasterEndpoint(
// Mapping from block id to the set of block managers that have the block.
private val blockLocations = new JHashMap[BlockId, mutable.HashSet[BlockManagerId]]

private val askThreadPool = ThreadUtils.newDaemonCachedThreadPool("block-manager-ask-thread-pool")
private val askThreadPool =
ThreadUtils.newDaemonCachedThreadPool("block-manager-ask-thread-pool", 100)
private implicit val askExecutionContext = ExecutionContext.fromExecutorService(askThreadPool)

private val topologyMapper = {
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2 changes: 1 addition & 1 deletion core/src/main/scala/org/apache/spark/storage/BlockManagerSlaveEndpoint.scala
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Expand Up @@ -37,7 +37,7 @@ class BlockManagerSlaveEndpoint(
extends ThreadSafeRpcEndpoint with Logging {

private val asyncThreadPool =
ThreadUtils.newDaemonCachedThreadPool("block-manager-slave-async-thread-pool")
ThreadUtils.newDaemonCachedThreadPool("block-manager-slave-async-thread-pool", 100)
private implicit val asyncExecutionContext = ExecutionContext.fromExecutorService(asyncThreadPool)

// Operations that involve removing blocks may be slow and should be done asynchronously
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