[
https://issues.apache.org/jira/browse/PIG-2709?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13279725#comment-13279725
]
Mike Percy commented on PIG-2709:
---------------------------------
Old stack trace:
java.lang.RuntimeException: java.io.IOException: Not a data file.
at
org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigRecordReader.initNextRecordReader(PigRecordReader.java:236)
at
org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigRecordReader.<init>(PigRecordReader.java:109)
at
org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigInputFormat.createRecordReader(PigInputFormat.java:118)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:614)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:323)
at org.apache.hadoop.mapred.Child$4.run(Child.java:270)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1157)
at org.apache.hadoop.mapred.Child.main(Child.java:264)
Caused by: java.io.IOException: Not a data file.
at
org.apache.avro.file.DataFileStream.initialize(DataFileStream.java:102)
at org.apache.avro.file.DataFileReader.<init>(DataFileReader.java:97)
at
org.apache.pig.piggybank.storage.avro.PigAvroRecordReader.<init>(PigAvroRecordReader.java:53)
at
org.apache.pig.piggybank.storage.avro.PigAvroInputFormat.createRecordReader(PigAvroInputFormat.java:66)
at
org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigRecordReader.initNextRecordReader(PigRecordReader.java:227)
... 9 more
New stack trace:
java.lang.RuntimeException: java.io.IOException: Error initializing data file
reader for file (hdfs://localhost/logs/data.avro)
at
org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigRecordReader.initNextRecordReader(PigRecordReader.java:236)
at
org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigRecordReader.<init>(PigRecordReader.java:109)
at
org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigInputFormat.createRecordReader(PigInputFormat.java:118)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:614)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:323)
at org.apache.hadoop.mapred.Child$4.run(Child.java:270)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1157)
at org.apache.hadoop.mapred.Child.main(Child.java:264)
Caused by: java.io.IOException: Error initializing data file reader for file
(hdfs://localhost/logs/data.avro)
at
org.apache.pig.piggybank.storage.avro.PigAvroRecordReader.<init>(PigAvroRecordReader.java:56)
at
org.apache.pig.piggybank.storage.avro.PigAvroInputFormat.createRecordReader(PigAvroInputFormat.java:66)
at
org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigRecordReader.initNextRecordReader(PigRecordReader.java:227)
... 9 more
Caused by: java.io.IOException: Not a data file.
at
org.apache.avro.file.DataFileStream.initialize(DataFileStream.java:102)
at org.apache.avro.file.DataFileReader.<init>(DataFileReader.java:97)
at
org.apache.pig.piggybank.storage.avro.PigAvroRecordReader.<init>(PigAvroRecordReader.java:54)
... 11 more
> PigAvroRecordReader should specify which file has a problem when throwing
> IOException
> -------------------------------------------------------------------------------------
>
> Key: PIG-2709
> URL: https://issues.apache.org/jira/browse/PIG-2709
> Project: Pig
> Issue Type: Improvement
> Reporter: Mike Percy
> Attachments: PIG-2709-1.patch
>
>
> Today, if AvroStorage opens a file that is not valid Avro, an exception is
> thrown but it's unclear which file actually had the problem form looking at
> the M/R logs. The PigAvroRecordReader should specify the file being opened
> when an exception is thrown.
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