[
https://issues.apache.org/jira/browse/HDFS-3492?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Eli Collins updated HDFS-3492:
------------------------------
Attachment: hdfs-3492.txt
Patch rebased on trunk.
> fix some misuses of InputStream#skip
> ------------------------------------
>
> Key: HDFS-3492
> URL: https://issues.apache.org/jira/browse/HDFS-3492
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Colin Patrick McCabe
> Assignee: Colin Patrick McCabe
> Priority: Minor
> Attachments: HDFS-3492.001.patch, HDFS-3492.002.patch, hdfs-3492.txt
>
>
> It seems that we have a few cases where programmers are calling
> InputStream#skip and not handling "short skips." Unfortunately, the skip
> method is documented and implemented so that it doesn't actually skip the
> requested number of bytes, but simply tries to skip at most that amount of
> bytes. A better name probably would have been trySkip or similar.
> It seems like most of the time when the argument to skip is small enough,
> we'll succeed almost all of the time. This is no doubt an implementation
> artifact of some of the popular stream implementations. This tends to hide
> the bug-- however, it is still waiting to emerge at some point if those
> implementations ever change or if buffer sizes are adjusted, etc.
> All of these cases can be fixed by calling IOUtils#skipFully to get the
> behavior that the programmer expects-- i.e., skipping by the specified amount.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
