python中执行spark算子总是报错,新手上路,请教各路大神,怎么解决?
24/06/17 16:31:58 ERROR Executor: Exception in task 0.0 in stage 0.0 (TID 0)
java.net.SocketException: Connection reset
at java.base/sun.nio.ch.NioSocketImpl.implRead(NioSocketImpl.java:328)at java.base/sun.nio.ch.NioSocketImpl.read(NioSocketImpl.java:355)at java.base/sun.nio.ch.NioSocketImpl$1.read(NioSocketImpl.java:808)at java.base/java.net.Socket$SocketInputStream.read(Socket.java:966)at java.base/java.io.BufferedInputStream.fill(BufferedInputStream.java:244)at java.base/java.io.BufferedInputStream.read(BufferedInputStream.java:263)at java.base/java.io.DataInputStream.readInt(DataInputStream.java:393)at org.apache.spark.api.python.PythonRunner$$anon$3.read(PythonRunner.scala:757)at org.apache.spark.api.python.PythonRunner$$anon$3.read(PythonRunner.scala:749)at org.apache.spark.api.python.BasePythonRunner$ReaderIterator.hasNext(PythonRunner.scala:514)at org.apache.spark.InterruptibleIterator.hasNext(InterruptibleIterator.scala:37)at scala.collection.Iterator$GroupedIterator.fill(Iterator.scala:259)at scala.collection.Iterator$GroupedIterator.hasNext(Iterator.scala:265)at scala.collection.Iterator$$anon$9.hasNext(Iterator.scala:576)at org.apache.spark.shuffle.sort.BypassMergeSortShuffleWriter.write(BypassMergeSortShuffleWriter.java:140)at org.apache.spark.shuffle.ShuffleWriteProcessor.write(ShuffleWriteProcessor.scala:59)at org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:101)at org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:53)at org.apache.spark.TaskContext.runTaskWithListeners(TaskContext.scala:161)at org.apache.spark.scheduler.Task.run(Task.scala:139)at org.apache.spark.executor.Executor$TaskRunner.$anonfun$run$3(Executor.scala:554)at org.apache.spark.util.Utils$.tryWithSafeFinally(Utils.scala:1529)at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:557)at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)at java.base/java.lang.Thread.run(Thread.java:842)
24/06/17 16:31:58 WARN TaskSetManager: Lost task 0.0 in stage 0.0 (TID 0) (DESKTOP-L1K769I executor driver): java.net.SocketException: Connection reset
at java.base/sun.nio.ch.NioSocketImpl.implRead(NioSocketImpl.java:328)at java.base/sun.nio.ch.NioSocketImpl.read(NioSocketImpl.java:355)at java.base/sun.nio.ch.NioSocketImpl$1.read(NioSocketImpl.java:808)at java.base/java.net.Socket$SocketInputStream.read(Socket.java:966)at java.base/java.io.BufferedInputStream.fill(BufferedInputStream.java:244)at java.base/java.io.BufferedInputStream.read(BufferedInputStream.java:263)at java.base/java.io.DataInputStream.readInt(DataInputStream.java:393)at org.apache.spark.api.python.PythonRunner$$anon$3.read(PythonRunner.scala:757)at org.apache.spark.api.python.PythonRunner$$anon$3.read(PythonRunner.scala:749)at org.apache.spark.api.python.BasePythonRunner$ReaderIterator.hasNext(PythonRunner.scala:514)at org.apache.spark.InterruptibleIterator.hasNext(InterruptibleIterator.scala:37)at scala.collection.Iterator$GroupedIterator.fill(Iterator.scala:259)at scala.collection.Iterator$GroupedIterator.hasNext(Iterator.scala:265)at scala.collection.Iterator$$anon$9.hasNext(Iterator.scala:576)at org.apache.spark.shuffle.sort.BypassMergeSortShuffleWriter.write(BypassMergeSortShuffleWriter.java:140)at org.apache.spark.shuffle.ShuffleWriteProcessor.write(ShuffleWriteProcessor.scala:59)at org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:101)at org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:53)at org.apache.spark.TaskContext.runTaskWithListeners(TaskContext.scala:161)at org.apache.spark.scheduler.Task.run(Task.scala:139)at org.apache.spark.executor.Executor$TaskRunner.$anonfun$run$3(Executor.scala:554)at org.apache.spark.util.Utils$.tryWithSafeFinally(Utils.scala:1529)at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:557)at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)at java.base/java.lang.Thread.run(Thread.java:842).....
遇到在 Python 中执行 Spark 算子时总是报错的问题,这通常是由多种原因导致的。报错信息 java.net.SocketException: Connection reset
表明在 Spark 任务执行过程中,网络连接被重置了。这可能是由于网络不稳定、资源不足(如内存或CPU)、配置错误或代码逻辑问题导致的。
要解决这个问题,你可以尝试以下几个步骤:
spark.network.timeout
等。由于问题可能涉及多个方面,上述建议只是一些常见的解决步骤。具体还需要根据实际的错误信息和环境配置来定位和解决问题。如果问题依然无法解决,建议提供更详细的错误日志和 Spark 配置信息,以便进一步分析。
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