hzw created SPARK-3277: -------------------------- Summary: LZ4 compression cause the the ExternalSort exception Key: SPARK-3277 URL: https://issues.apache.org/jira/browse/SPARK-3277 Project: Spark Issue Type: Bug Components: Spark Core Affects Versions: 1.0.2 Reporter: hzw Fix For: 1.1.0
I tested the LZ4 compression,and it come up with such problem.(with wordcount) Also I tested the snappy and LZF,and they were OK. At last I set the "spark.shuffle.spill" as false to avoid such exeception, but once open this "switch", this error would come. Exeception Info as follow: java.lang.AssertionError: assertion failed at scala.Predef$.assert(Predef.scala:165) at org.apache.spark.util.collection.ExternalAppendOnlyMap$DiskMapIterator.<init>(ExternalAppendOnlyMap.scala:416) at org.apache.spark.util.collection.ExternalAppendOnlyMap.spill(ExternalAppendOnlyMap.scala:235) at org.apache.spark.util.collection.ExternalAppendOnlyMap.insertAll(ExternalAppendOnlyMap.scala:150) at org.apache.spark.Aggregator.combineValuesByKey(Aggregator.scala:58) at org.apache.spark.shuffle.hash.HashShuffleWriter.write(HashShuffleWriter.scala:55) at org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:68) at org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:41) at org.apache.spark.scheduler.Task.run(Task.scala:54) at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:177) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) at java.lang.Thread.run(Thread.java:722) -- This message was sent by Atlassian JIRA (v6.2#6252) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org