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https://issues.apache.org/jira/browse/SPARK-27239?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16801456#comment-16801456
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Hyukjin Kwon commented on SPARK-27239:
--------------------------------------
Doesn't matter which one is resolved as a duplicate.
> Processing Compressed HDFS files with spark failing with error:
> "java.lang.IllegalArgumentException: requirement failed: length (-1) cannot
> be negative" from spark 2.2.X
> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: SPARK-27239
> URL: https://issues.apache.org/jira/browse/SPARK-27239
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 2.2.1, 2.2.2, 2.2.3, 2.3.0, 2.3.1, 2.3.2, 2.3.3, 2.4.0
> Reporter: Rajesh Kumar K
> Priority: Major
>
>
> From spark 2.2.x versions, when spark job processing any compressed HDFS
> files with custom input file format then spark jobs are failing with error
> "java.lang.IllegalArgumentException: requirement failed: length (-1) cannot
> be negative", the custom input file format will return the number of bytes
> length value as -1 for compressed file formats due to the compressed HDFS
> file are non splitable, so for compressed input file format the split will be
> offset as 0 and number of bytes length as -1, spark should consider the bytes
> length value -1 as valid split for the compressed file formats.
>
> We observed that earlier versions of spark doesn’t have this validation, and
> found that from spark 2.2.x new validation got introduced in the class
> InputFileBlockHolder, so spark should accept the number of bytes length value
> -1 as valid length for input splits from spark 2.2.x as well.
>
> +Below is the stack trace.+
> Caused by: java.lang.IllegalArgumentException: requirement failed: length
> (-1) cannot be negative
> at scala.Predef$.require(Predef.scala:224)
> at
> org.apache.spark.rdd.InputFileBlockHolder$.set(InputFileBlockHolder.scala:70)
> at org.apache.spark.rdd.HadoopRDD$$anon$1.<init>(HadoopRDD.scala:226)
> at org.apache.spark.rdd.HadoopRDD.compute(HadoopRDD.scala:214)
> at org.apache.spark.rdd.HadoopRDD.compute(HadoopRDD.scala:94)
> at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:324)
> at org.apache.spark.rdd.RDD.iterator(RDD.scala:288)
> at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:87)
> at org.apache.spark.scheduler.Task.run(Task.scala:109)
> at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:345)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at java.lang.Thread.run(Thread.java:748)
>
> +Below is the code snippet which caused this issue.+
> ** {color:#ff0000}require(length >= 0, s"length ($length) cannot be
> negative"){color} // This validation caused the issue.
>
> {code:java}
> // code placeholder
> org.apache.spark.rdd.InputFileBlockHolder - spark-core
>
> def set(filePath: String, startOffset: Long, length: Long): Unit = {
> require(filePath != null, "filePath cannot be null")
> require(startOffset >= 0, s"startOffset ($startOffset) cannot be
> negative")
> require(length >= 0, s"length ($length) cannot be negative")
> inputBlock.set(new FileBlock(UTF8String.fromString(filePath),
> startOffset, length))
> }
> {code}
>
> +Steps to reproduce the issue.+
> Please refer the below code to reproduce the issue.
> {code:java}
> // code placeholder
> import org.apache.hadoop.mapred.JobConf
> val hadoopConf = new JobConf()
> import org.apache.hadoop.mapred.FileInputFormat
> import org.apache.hadoop.fs.Path
> FileInputFormat.setInputPaths(hadoopConf, new
> Path("/output656/part-r-00000.gz"))
> val records =
> sc.hadoopRDD(hadoopConf,classOf[com.platform.custom.storagehandler.INFAInputFormat],
> classOf[org.apache.hadoop.io.LongWritable],
> classOf[org.apache.hadoop.io.Writable])
> records.count()
> {code}
>
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