Scala 火花驱动器已断开连接，并由船长移除_Scala_Hadoop_Apache Spark

Scala 火花驱动器已断开连接，并由船长移除

scala hadoop apache-spark

Scala 火花驱动器已断开连接，并由船长移除,scala,hadoop,apache-spark,Scala,Hadoop,Apache Spark,我有一个由两个从机和一个主机组成的集群并进行了设置，我向spark主机（192.168.1.64）提交了一个jar（scala）：在相当长的一段时间运行正常后，它突然停止，终端上的最后几行正在运行 ... 15/08/19 17:45:24 INFO scheduler.TaskSchedulerImpl: Adding task set 411292.0 with 6 tasks 15/08/19 17:45:24 WARN scheduler.TaskSetManager: Stage 4

我有一个由两个从机和一个主机组成的集群并进行了设置，我向spark主机（192.168.1.64）提交了一个jar（scala）：

在相当长的一段时间运行正常后，它突然停止，终端上的最后几行正在运行

...
15/08/19 17:45:24 INFO scheduler.TaskSchedulerImpl: Adding task set 411292.0 with 6 tasks
15/08/19 17:45:24 WARN scheduler.TaskSetManager: Stage 411292 contains a task of very large size (2762 KB). The maximum recommended task size is 100 KB.
15/08/19 17:45:24 INFO scheduler.TaskSetManager: Starting task 2.0 in stage 411292.0 (TID 1832, 192.168.1.64, PROCESS_LOCAL, 2828792 bytes)
15/08/19 17:45:24 INFO scheduler.TaskSetManager: Starting task 0.0 in stage 411292.0 (TID 1833, 192.168.1.62, PROCESS_LOCAL, 2310009 bytes)
15/08/19 17:45:24 INFO scheduler.TaskSetManager: Starting task 3.0 in stage 411292.0 (TID 1834, 192.168.1.64, PROCESS_LOCAL, 2669188 bytes)
15/08/19 17:45:24 INFO scheduler.TaskSetManager: Starting task 1.0 in stage 411292.0 (TID 1835, 192.168.1.62, PROCESS_LOCAL, 2295676 bytes)
15/08/19 17:45:24 INFO scheduler.TaskSetManager: Starting task 4.0 in stage 411292.0 (TID 1836, 192.168.1.64, PROCESS_LOCAL, 2847786 bytes)
15/08/19 17:45:24 INFO scheduler.TaskSetManager: Starting task 5.0 in stage 411292.0 (TID 1837, 192.168.1.64, PROCESS_LOCAL, 2913528 bytes)
Killed

主日志中发生的错误如下：

...
15/08/19 16:09:49 INFO master.Master: Launching executor app-20150819160949-0001/0 on worker worker-20150819160925-192.168.1.64-51640
15/08/19 16:09:49 INFO master.Master: Launching executor app-20150819160949-0001/1 on worker worker-20150819160938-192.168.1.62-38007
15/08/19 16:15:44 INFO master.Master: akka.tcp://sparkDriver@192.168.1.64:46823 got disassociated, removing it.
15/08/19 16:15:44 INFO master.Master: Removing app app-20150819160949-0001
15/08/19 16:15:44 WARN remote.ReliableDeliverySupervisor: Association with remote system [akka.tcp://sparkDriver@192.168.1.64:46823] has failed, address is now gated for [5000] ms. Reason is: [Disassociated].
15/08/19 16:15:44 WARN master.Master: Application testPageRank is still in progress, it may be terminated abnormally.
...

两位员工的日志中都有类似的内容

...
15/08/19 16:15:49 INFO worker.Worker: Executor app-20150819160949-0001/0 finished with state EXITED message Command exited with code 1 exitStatus 1
15/08/19 16:15:50 WARN remote.ReliableDeliverySupervisor: Association with remote system [akka.tcp://sparkExecutor@192.168.1.64:54799] has failed, address is now gated for [5000] ms. Reason is: [Disassociated].

...
15/08/19 16:15:41 INFO executor.Executor: Finished task 1.0 in stage 387758.0 (TID 1803). 1911 bytes result sent to driver
15/08/19 16:15:41 INFO executor.Executor: Finished task 4.0 in stage 387758.0 (TID 1806). 1911 bytes result sent to driver
15/08/19 16:15:41 INFO storage.BlockManager: Found block rdd_1206_5 locally
15/08/19 16:15:41 INFO executor.Executor: Finished task 5.0 in stage 387758.0 (TID 1807). 1911 bytes result sent to driver
15/08/19 16:15:41 INFO storage.BlockManager: Found block rdd_1206_3 locally
15/08/19 16:15:41 INFO executor.Executor: Finished task 3.0 in stage 387758.0 (TID 1805). 1911 bytes result sent to driver
15/08/19 16:15:44 ERROR executor.CoarseGrainedExecutorBackend: Driver 192.168.1.64:46823 disassociated! Shutting down.
15/08/19 16:15:44 WARN remote.ReliableDeliverySupervisor: Association with remote system [akka.tcp://sparkDriver@192.168.1.64:46823] has failed, address is now gated for [5000] ms. Reason is: [Disassociated].
15/08/19 16:15:45 INFO storage.DiskBlockManager: Shutdown hook called
15/08/19 16:15:46 INFO util.Utils: Shutdown hook called

及

分别。工作/应用程序文件包含如下内容

...
15/08/19 16:15:49 INFO worker.Worker: Executor app-20150819160949-0001/0 finished with state EXITED message Command exited with code 1 exitStatus 1
15/08/19 16:15:50 WARN remote.ReliableDeliverySupervisor: Association with remote system [akka.tcp://sparkExecutor@192.168.1.64:54799] has failed, address is now gated for [5000] ms. Reason is: [Disassociated].

...
15/08/19 16:15:41 INFO executor.Executor: Finished task 1.0 in stage 387758.0 (TID 1803). 1911 bytes result sent to driver
15/08/19 16:15:41 INFO executor.Executor: Finished task 4.0 in stage 387758.0 (TID 1806). 1911 bytes result sent to driver
15/08/19 16:15:41 INFO storage.BlockManager: Found block rdd_1206_5 locally
15/08/19 16:15:41 INFO executor.Executor: Finished task 5.0 in stage 387758.0 (TID 1807). 1911 bytes result sent to driver
15/08/19 16:15:41 INFO storage.BlockManager: Found block rdd_1206_3 locally
15/08/19 16:15:41 INFO executor.Executor: Finished task 3.0 in stage 387758.0 (TID 1805). 1911 bytes result sent to driver
15/08/19 16:15:44 ERROR executor.CoarseGrainedExecutorBackend: Driver 192.168.1.64:46823 disassociated! Shutting down.
15/08/19 16:15:44 WARN remote.ReliableDeliverySupervisor: Association with remote system [akka.tcp://sparkDriver@192.168.1.64:46823] has failed, address is now gated for [5000] ms. Reason is: [Disassociated].
15/08/19 16:15:45 INFO storage.DiskBlockManager: Shutdown hook called
15/08/19 16:15:46 INFO util.Utils: Shutdown hook called

及

分别。hdfs或spark中似乎没有其他错误

我怀疑错误在主日志中，第三行（

15/08/19 16:15:44信息主。主：akka）。tcp://sparkDriver@192.168.1.64:46823已解除关联，正在删除它。

），但我不知道为什么。我试着按照一些帖子的建议将

spark.akka.heartbeat.interval

更改为100，但没有成功。任何人都知道为什么会这样，以及如何解决这个问题？非常感谢。

正如这里一个非常类似的问题所提到的

问题很可能是内存不足。添加更多内存（或者在这种情况下添加更多节点）应该可以解决这个问题

（或者，需要更少的内存当然也可以）。

我认为这不是同一个问题。我有你同样的问题。找到解决办法？不太可能。在某个时候，我转向了其他事情。但我怀疑这可能与我的集群在RAM方面太小有关（2-3台机器，每个机器有4-6G RAM）。因此，我仍然对答案感兴趣。

...
15/08/19 16:15:41 INFO storage.BlockManager: Found block rdd_1206_0 locally
15/08/19 16:15:41 INFO executor.Executor: Finished task 2.0 in stage 387758.0 (TID 1804). 1911 bytes result sent to driver
15/08/19 16:15:41 INFO executor.Executor: Finished task 0.0 in stage 387758.0 (TID 1802). 1911 bytes result sent to driver
15/08/19 16:15:42 ERROR executor.CoarseGrainedExecutorBackend: Driver 192.168.1.64:46823 disassociated! Shutting down.
15/08/19 16:15:42 INFO storage.DiskBlockManager: Shutdown hook called
15/08/19 16:15:42 WARN remote.ReliableDeliverySupervisor: Association with remote system [akka.tcp://sparkDriver@192.168.1.64:46823] has failed, address is now gated for [5000] ms. Reason is: [Disassociated].
15/08/19 16:15:42 INFO util.Utils: Shutdown hook called