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Posted to common-user@hadoop.apache.org by 谢纲 <xi...@gmail.com> on 2007/10/10 04:35:50 UTC

lock service in hadoop

Hi,
Is there any lock service in hadoop to sync the access to file (such
as chubby in GFS)?

Thanks

-- 
Xie Gang

Re: lock service in hadoop

Posted by Owen O'Malley <oo...@yahoo-inc.com>.

On Oct 9, 2007, at 7:35 PM, 谢纲 wrote:

> Hi,
> Is there any lock service in hadoop to sync the access to file (such
> as chubby in GFS)?

Currently no. Yahoo is planning on releasing one soon (2-3 weeks).

-- Owen

Re: lock service in hadoop

Posted by Ted Dunning <td...@veoh.com>.

There is somewhat less need for this at this point since files appear
atomically and cannot be modified (even for append).

There are rumors of impending appendability.

On 10/9/07 7:35 PM, "谢纲" <xi...@gmail.com> wrote:

> Hi,
> Is there any lock service in hadoop to sync the access to file (such
> as chubby in GFS)?
> 
> Thanks