shangxinli commented on a change in pull request #951:
URL: https://github.com/apache/parquet-mr/pull/951#discussion_r830648757
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File path:
parquet-hadoop/src/main/java/org/apache/parquet/hadoop/util/HadoopStreams.java
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@@ -66,6 +67,15 @@ public static SeekableInputStream wrap(FSDataInputStream
stream) {
}
}
+ private static boolean isWrappedStreamByteBufferReadable(FSDataInputStream
stream) {
+ InputStream wrapped = stream.getWrappedStream();
+ if (wrapped instanceof FSDataInputStream) {
+ return isWrappedStreamByteBufferReadable(((FSDataInputStream) wrapped));
Review comment:
I understand it would be very rare case but once that happen it would be
hard to debug this 'hang' issue. Let's do two things: 1) Add check if it is
'this'; Throw exception if that happens; 2) Add debug log; When it hangs,
developer can enable debug log and see what parquet-mr is doing.
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