[ http://issues.apache.org/jira/browse/HADOOP-550?page=all ]
Hairong Kuang updated HADOOP-550:
---------------------------------
Attachment: text.patch
> Text constructure can throw exception
> -------------------------------------
>
> Key: HADOOP-550
> URL: http://issues.apache.org/jira/browse/HADOOP-550
> Project: Hadoop
> Issue Type: Bug
> Affects Versions: 0.6.2
> Reporter: Bryan Pendleton
> Assigned To: Hairong Kuang
> Fix For: 0.7.0
>
> Attachments: text.patch
>
>
> I finally got back around to moving my working code to using Text objects.
> And, once again, switching to Text (from UTF8) means my jobs are failing.
> This time, its better defined - constructing a Text from a string extracted
> from Real World data makes the Text object constructor throw a
> CharacterCodingException. This may be legit - I don't actually understand UTF
> well enough to understand what's wrong with the supplied string. I'm
> assembling a series of strings, some of which are user-supplied, and
> something causes the Text constructor to barf.
> However, this is still completely unacceptable. If I need to stuff textual
> data someplace - I need the container to *do* it. If user-supplied inputs
> can't be stored as a "UTF" aware text value, then another container needs to
> be brought into existence. Sure, I can use a BytesWritable, but, as its name
> implies - Text should handle "text". If Text is supposed to ==
> "StringWritable", then, well, it doesn't, yet.
> I admit to being a few weeks' back in the bleeding edge at this point, so
> maybe my particluar Text bug has been fixed, though the only fixes to Text I
> see are adopting it into more of the internals of Hadoop. This argument goes
> double in that case - if we're using Text objects internally, it should
> really be a totally solid object - construct one from a String, get one back,
> but _never_ throw a content-related Exception. Or, if Text is not the right
> object because its data-sensitive, then I argue we shouldn't use it in any
> case where data might kill it - internal, or anywhere else (by default).
> Please, don't remove UTF8, for now.
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