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https://issues.apache.org/jira/browse/HADOOP-8615?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13421247#comment-13421247
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Tim Broberg commented on HADOOP-8615:
-------------------------------------
I can see how that would really help, and what a pain it is to try to guess
which stream we're dealing with.
Unfortunately, DecompressorStream doesn't have any way to know the name of the
file or even if the InputStream is a file. If it is, it's more than likely to
be buffered such that DecompressorStream never "sees" the actual
FileInputStream. ...and even if he did have the FileInputStream I'm not aware
of any way to retrieve the filename.
We could try to make each caller that creates a DecompressorStream from a file
log debug information regarding which file is being used, but how would we
correlate this message with a particular DecompressionStream?
The best solution I can think of - Perhaps creators of DecompressionStream's
should catch EOFException and then print out detailed debug information.
> EOFException in DecompressorStream.java needs to be more verbose
> ----------------------------------------------------------------
>
> Key: HADOOP-8615
> URL: https://issues.apache.org/jira/browse/HADOOP-8615
> Project: Hadoop Common
> Issue Type: Bug
> Components: io
> Affects Versions: 0.20.2
> Reporter: Jeff Lord
>
> In ./src/core/org/apache/hadoop/io/compress/DecompressorStream.java
> The following exception should at least pass back the file that it encounters
> this error in relation to:
> protected void getCompressedData() throws IOException {
> checkStream();
> int n = in.read(buffer, 0, buffer.length);
> if (n == -1) {
> throw new EOFException("Unexpected end of input stream");
> }
> This would help greatly to debug bad/corrupt files.
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