apache-spark - 主机上的 Snappy 压缩编解码器

Question

我正在运行 spark 独立集群 (1.4.0)。我有一些应用程序每小时运行一次调度程序。我发现在其中一次执行中，作业在几秒钟后(而不是大约 5 分钟)完成，并且在主服务器的日志中，我可以看到以下异常:

org.apache.spark.SparkException: Job aborted due to stage failure: Task 1 in stage 1.0 failed 4 times, most recent failure: Lost task 1.3 in stage 1.0 (TID 20, 172.31.6.203): java.io.IOException: java.lang.reflect.InvocationTargetException
at org.apache.spark.util.Utils$.tryOrIOException(Utils.scala:1257)
at org.apache.spark.broadcast.TorrentBroadcast.readBroadcastBlock(TorrentBroadcast.scala:165)
at org.apache.spark.broadcast.TorrentBroadcast._value$lzycompute(TorrentBroadcast.scala:64)
at org.apache.spark.broadcast.TorrentBroadcast._value(TorrentBroadcast.scala:64)
at org.apache.spark.broadcast.TorrentBroadcast.getValue(TorrentBroadcast.scala:88)
at org.apache.spark.broadcast.Broadcast.value(Broadcast.scala:70)
at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:59)
at org.apache.spark.scheduler.Task.run(Task.scala:70)
at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:213)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at org.apache.spark.io.CompressionCodec$.createCodec(CompressionCodec.scala:68)
at org.apache.spark.io.CompressionCodec$.createCodec(CompressionCodec.scala:60)
at org.apache.spark.broadcast.TorrentBroadcast.org$apache$spark$broadcast$TorrentBroadcast$$setConf(TorrentBroadcast.scala:73)
at org.apache.spark.broadcast.TorrentBroadcast$$anonfun$readBroadcastBlock$1.apply(TorrentBroadcast.scala:167)
at org.apache.spark.util.Utils$.tryOrIOException(Utils.scala:1254)
... 11 more

Caused by: java.lang.IllegalArgumentException
at org.apache.spark.io.SnappyCompressionCodec.<init>(CompressionCodec.scala:152)
... 20 more

Driver stacktrace:
at org.apache.spark.scheduler.DAGScheduler.org$apache$spark$scheduler$DAGScheduler$$failJobAndIndependentStages(DAGScheduler.scala:1266)
at org.apache.spark.scheduler.DAGScheduler$$anonfun$abortStage$1.apply(DAGScheduler.scala:1257)
at org.apache.spark.scheduler.DAGScheduler$$anonfun$abortStage$1.apply(DAGScheduler.scala:1256)
at scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:59)
at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:47)
at org.apache.spark.scheduler.DAGScheduler.abortStage(DAGScheduler.scala:1256)
at org.apache.spark.scheduler.DAGScheduler$$anonfun$handleTaskSetFailed$1.apply(DAGScheduler.scala:730)
at org.apache.spark.scheduler.DAGScheduler$$anonfun$handleTaskSetFailed$1.apply(DAGScheduler.scala:730)
at scala.Option.foreach(Option.scala:236)
at org.apache.spark.scheduler.DAGScheduler.handleTaskSetFailed(DAGScheduler.scala:730)
at org.apache.spark.scheduler.DAGSchedulerEventProcessLoop.onReceive(DAGScheduler.scala:1450)
at org.apache.spark.scheduler.DAGSchedulerEventProcessLoop.onReceive(DAGScheduler.scala:1411)
at org.apache.spark.util.EventLoop$$anon$1.run(EventLoop.scala:48)

这个作业在本次运行前后多次成功，那段时间其他作业都成功了

知道是什么原因造成的吗？

谢谢你，尼赞

Answer 1

我发现问题的根本原因是由于应用程序的日志，从站用完了空间。

我将日志传递到挂载目录，并使用以下命令删除旧日志:

for slave in `cat /root/spark/conf/slaves`; 
  do echo $slave;
  ssh -A -t -i ~/.ssh/myKey -o StrictHostKeyChecking=no root@$slave "rm -rf  /home/hadoop/spark-logs/; mkdir /home/hadoop/spark-logs;  ln -s /mnt/spark-logs/ /home/hadoop/spark-logs/"
done

谢谢你，尼赞