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MapReduce >> mail # user >> Re: Hadoop fs -getmerge


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姚吉龙 2013-04-17, 15:02
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Fabio Pitzolu 2013-04-18, 07:41
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Re: Hadoop fs -getmerge
If -getmerge is updated, specifically deleting the .crc is not necessary.  Adding an option that invokes fs.writeChecksum via a cmdline option should do the trick.

On Apr 18, 2013, at 2:41 AM, Fabio Pitzolu wrote:

Hi Hemanth,
I guess that the only solution is to delete the crc files after the export.
Does anyone of you knows if someone filed a Jira to implement a parameter to -getmerge to delete the crc files afterwards?

Fabio Pitzolu
Consultant - BI & Infrastructure

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2013/4/18 Hemanth Yamijala <[EMAIL PROTECTED]<mailto:[EMAIL PROTECTED]>>
I don't think that is possible. When we use -getmerge, the destination filesystem happens to be a LocalFileSystem which extends from ChecksumFileSystem. I believe that's why the CRC files are getting in.

Would it not be possible for you to ignore them, since they have a fixed extension ?

Thanks
Hemanth
On Wed, Apr 17, 2013 at 8:09 PM, Fabio Pitzolu <[EMAIL PROTECTED]<mailto:[EMAIL PROTECTED]>> wrote:
Hi all,
is there a way to use the "getmerge" fs command and not generate the .crc files in the output local directory?

Thanks,

Fabio Pitzolu