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Posted to common-issues@hadoop.apache.org by "Steve Loughran (JIRA)" <ji...@apache.org> on 2017/12/04 14:30:00 UTC
[jira] [Commented] (HADOOP-15088) BufferedInputStream.skip function
can return 0 when the file is corrupted, causing an infinite loop
[ https://issues.apache.org/jira/browse/HADOOP-15088?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16276846#comment-16276846 ]
Steve Loughran commented on HADOOP-15088:
-----------------------------------------
Probably a common bug we've copied and pasted around. Why not add a new IOUtil operation to do this, as other streams may do the same, especially the object stores
> BufferedInputStream.skip function can return 0 when the file is corrupted, causing an infinite loop
> ---------------------------------------------------------------------------------------------------
>
> Key: HADOOP-15088
> URL: https://issues.apache.org/jira/browse/HADOOP-15088
> Project: Hadoop Common
> Issue Type: Bug
> Components: streaming
> Affects Versions: 2.5.0
> Reporter: John Doe
>
> When a file is corrupted, the skip function can return 0, causing an infinite loop.
> Here is the code:
> {code:java}
> private boolean slowReadUntilMatch(Pattern markPattern, boolean includePat,
> DataOutputBuffer outBufOrNull) throws IOException {
> ...
> for (long skiplen = endPos; skiplen > 0; ) {
> skiplen -= bin_.skip(skiplen);
> }
> ...
> }
> {code}
> Similar bugs are [Hadoop-8614|https://issues.apache.org/jira/browse/HADOOP-8614], [Yarn-2905|https://issues.apache.org/jira/browse/YARN-2905], [Yarn-163|https://issues.apache.org/jira/browse/YARN-163], [MAPREDUCE-6990|https://issues.apache.org/jira/browse/MAPREDUCE-6990]
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