pavibhai commented on a change in pull request #924:
URL: https://github.com/apache/orc/pull/924#discussion_r733860985
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File path: java/core/src/java/org/apache/orc/impl/RecordReaderUtils.java
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@@ -414,7 +414,15 @@ static void readRanges(FSDataInputStream file,
long offset = first.getOffset();
int readSize = (int) (computeEnd(first, last) - offset);
byte[] buffer = new byte[readSize];
- file.readFully(offset, buffer, 0, buffer.length);
+ try {
+ file.readFully(offset, buffer, 0, buffer.length);
+ } catch(IOException e) {
+ throw new IOException(String.format("Failed while reading %s %d:%d",
+ file,
Review comment:
IMHO it feels like we should fix the FSInputStream to include the
relevant information including the path. The S3AInputStream is very descriptive
> "Caused by: java.io.IOException: Failed while reading
org.apache.hadoop.fs.FSDataInputStream@2f1173dd:
S3AInputStream{s3a://<SNIP>.orc wrappedStream=open read policy=random pos=65539
nextReadPos=0 contentLength=121693 contentRangeStart=3 contentRangeFinish=65539
remainingInCurrentRequest=0
StreamStatistics{OpenOperations=5, CloseOperations=4, Closed=4, Aborted=0,
SeekOperations=7, ReadExceptions=0, ForwardSeekOperations=3,
BackwardSeekOperations=4, BytesSkippedOnSeek=148, BytesBackwardsOnSeek=146391,
BytesRead=106621, BytesRead excluding skipped=106473, ReadOperations=15,
ReadFullyOperations=8, ReadsIncomplete=8, BytesReadInClose=64722,
BytesDiscardedInAbort=0, InputPolicy=2, InputPolicySetCount=2}}"
I would propose that:
* We have the exception enhanced with the InputStream.toString
* We further enhance the exception as suggested by @guiyanakuang to include
the path reference in readFileData
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