hi there I am trying to descrease my app's running time in worker node. I checked the log and found the most time-wasting part is below:15/06/08 16:14:23 INFO storage.MemoryStore: Block broadcast_0 stored as values in memory (estimated size 2.1 KB, free 353.3 MB) 15/06/08 16:14:42 INFO executor.Executor: Finished task 0.0 in stage 0.0 (TID 0). 693 bytes result sent to driver
I don't know why it needs 19s to storing 2.1KB size data to memory. Is there any tuning method? The attache is the full log, here it is:15/06/08 16:14:02 INFO executor.CoarseGrainedExecutorBackend: Registered signal handlers for [TERM, HUP, INT] 15/06/08 16:14:07 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable 15/06/08 16:14:10 INFO spark.SecurityManager: Changing view acls to: root 15/06/08 16:14:10 INFO spark.SecurityManager: Changing modify acls to: root 15/06/08 16:14:10 INFO spark.SecurityManager: SecurityManager: authentication disabled; ui acls disabled; users with view permissions: Set(root); users with modify permissions: Set(root) 15/06/08 16:14:14 INFO slf4j.Slf4jLogger: Slf4jLogger started 15/06/08 16:14:14 INFO Remoting: Starting remoting 15/06/08 16:14:15 INFO Remoting: Remoting started; listening on addresses :[akka.tcp://driverPropsFetcher@slave5:54684] 15/06/08 16:14:15 INFO util.Utils: Successfully started service 'driverPropsFetcher' on port 54684. 15/06/08 16:14:16 INFO spark.SecurityManager: Changing view acls to: root 15/06/08 16:14:16 INFO spark.SecurityManager: Changing modify acls to: root 15/06/08 16:14:16 INFO spark.SecurityManager: SecurityManager: authentication disabled; ui acls disabled; users with view permissions: Set(root); users with modify permissions: Set(root) 15/06/08 16:14:16 INFO remote.RemoteActorRefProvider$RemotingTerminator: Shutting down remote daemon. 15/06/08 16:14:16 INFO remote.RemoteActorRefProvider$RemotingTerminator: Remote daemon shut down; proceeding with flushing remote transports. 15/06/08 16:14:16 INFO slf4j.Slf4jLogger: Slf4jLogger started 15/06/08 16:14:16 INFO Remoting: Starting remoting 15/06/08 16:14:17 INFO remote.RemoteActorRefProvider$RemotingTerminator: Remoting shut down. 15/06/08 16:14:17 INFO Remoting: Remoting started; listening on addresses :[akka.tcp://sparkExecutor@slave5:49169] 15/06/08 16:14:17 INFO util.Utils: Successfully started service 'sparkExecutor' on port 49169. 15/06/08 16:14:17 INFO util.AkkaUtils: Connecting to MapOutputTracker: akka.tcp://sparkDriver@slave5:58630/user/MapOutputTracker 15/06/08 16:14:17 INFO util.AkkaUtils: Connecting to BlockManagerMaster: akka.tcp://sparkDriver@slave5:58630/user/BlockManagerMaster 15/06/08 16:14:17 INFO storage.DiskBlockManager: Created local directory at /tmp/spark-548b4618-4aba-4b63-9467-381fbfea8d5b/spark-83737dd6-46b0-47ee-82a5-5afee46bdbf5/spark-0fe9d8ba-2910-44a2-bf4f-80d179f5d58b/blockmgr-b4884e7a-2527-447a-9fc5-1823d923c2f1 15/06/08 16:14:17 INFO storage.MemoryStore: MemoryStore started with capacity 353.3 MB 15/06/08 16:14:17 INFO util.AkkaUtils: Connecting to OutputCommitCoordinator: akka.tcp://sparkDriver@slave5:58630/user/OutputCommitCoordinator 15/06/08 16:14:17 INFO executor.CoarseGrainedExecutorBackend: Connecting to driver: akka.tcp://sparkDriver@slave5:58630/user/CoarseGrainedScheduler 15/06/08 16:14:18 INFO worker.WorkerWatcher: Connecting to worker akka.tcp://sparkWorker@slave5:48926/user/Worker 15/06/08 16:14:18 INFO executor.CoarseGrainedExecutorBackend: Successfully registered with driver 15/06/08 16:14:18 INFO executor.Executor: Starting executor ID 0 on host slave5 15/06/08 16:14:18 INFO worker.WorkerWatcher: Successfully connected to akka.tcp://sparkWorker@slave5:48926/user/Worker 15/06/08 16:14:21 WARN internal.ThreadLocalRandom: Failed to generate a seed from SecureRandom within 3 seconds. Not enough entrophy? 15/06/08 16:14:21 INFO netty.NettyBlockTransferService: Server created on 53449 15/06/08 16:14:21 INFO storage.BlockManagerMaster: Trying to register BlockManager 15/06/08 16:14:21 INFO storage.BlockManagerMaster: Registered BlockManager 15/06/08 16:14:21 INFO util.AkkaUtils: Connecting to HeartbeatReceiver: akka.tcp://sparkDriver@slave5:58630/user/HeartbeatReceiver 15/06/08 16:14:21 INFO executor.CoarseGrainedExecutorBackend: Got assigned task 0 15/06/08 16:14:21 INFO executor.Executor: Running task 0.0 in stage 0.0 (TID 0) 15/06/08 16:14:21 INFO executor.Executor: Fetching http://192.168.100.11:50648/jars/ShellCompare.jar with timestamp 1433751228699 15/06/08 16:14:21 INFO util.Utils: Fetching http://192.168.100.11:50648/jars/ShellCompare.jar to /tmp/spark-548b4618-4aba-4b63-9467-381fbfea8d5b/spark-83737dd6-46b0-47ee-82a5-5afee46bdbf5/spark-99aba156-5803-41b8-9df1-3e36305f43c3/fetchFileTemp8512004298922421624.tmp 15/06/08 16:14:21 INFO util.Utils: Copying /tmp/spark-548b4618-4aba-4b63-9467-381fbfea8d5b/spark-83737dd6-46b0-47ee-82a5-5afee46bdbf5/spark-99aba156-5803-41b8-9df1-3e36305f43c3/-8058314591433751228699_cache to /usr/lib/spark/work/app-20150608161350-0001/0/./ShellCompare.jar 15/06/08 16:14:22 INFO executor.Executor: Adding file:/usr/lib/spark/work/app-20150608161350-0001/0/./ShellCompare.jar to class loader 15/06/08 16:14:22 INFO broadcast.TorrentBroadcast: Started reading broadcast variable 0 15/06/08 16:14:23 INFO storage.MemoryStore: ensureFreeSpace(1561) called with curMem=0, maxMem=370503843 15/06/08 16:14:23 INFO storage.MemoryStore: Block broadcast_0_piece0 stored as bytes in memory (estimated size 1561.0 B, free 353.3 MB) 15/06/08 16:14:23 INFO storage.BlockManagerMaster: Updated info of block broadcast_0_piece0 15/06/08 16:14:23 INFO broadcast.TorrentBroadcast: Reading broadcast variable 0 took 967 ms 15/06/08 16:14:23 INFO storage.MemoryStore: ensureFreeSpace(2168) called with curMem=1561, maxMem=370503843 15/06/08 16:14:23 INFO storage.MemoryStore: Block broadcast_0 stored as values in memory (estimated size 2.1 KB, free 353.3 MB) 15/06/08 16:14:42 INFO executor.Executor: Finished task 0.0 in stage 0.0 (TID 0). 693 bytes result sent to driver 15/06/08 16:14:42 INFO executor.CoarseGrainedExecutorBackend: Got assigned task 1 15/06/08 16:14:42 INFO executor.Executor: Running task 1.0 in stage 0.0 (TID 1) 15/06/08 16:14:56 INFO executor.Executor: Finished task 1.0 in stage 0.0 (TID 1). 693 bytes result sent to driver 15/06/08 16:14:56 INFO executor.CoarseGrainedExecutorBackend: Driver commanded a shutdown 15/06/08 16:14:56 INFO storage.MemoryStore: MemoryStore cleared 15/06/08 16:14:56 INFO storage.BlockManager: BlockManager stopped 15/06/08 16:14:56 INFO remote.RemoteActorRefProvider$RemotingTerminator: Shutting down remote daemon. 15/06/08 16:14:56 INFO remote.RemoteActorRefProvider$RemotingTerminator: Remote daemon shut down; proceeding with flushing remote transports. -------------------------------- Thanks&Best regards! San.Luo
StoringDataToMemory_stderr
Description: Binary data
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