releasing space after rapid grwoth

releasing space after rapid grwoth

[Max Veprinsky]

Hello all,

I'm trying to reclaim disk space on stable storage which was consumed
by a crashed apache process at a rate of ~100GB/hour. This issue has
happened a few times before and normally resolved by discovering a
.nfsXXXXX file, stopping the process on the the application server
that was holding the file. Sometimes the used filespace is recovered
quickly without manual intervention, other times I had to delete the
.nfsXXXX file manually.

Last time this happened 3 TB of disk space was consumed and no
.nfsXXXX file of that size was discovered, nor. I dismounted all of
the volumes from the clients 1/2 of the space was recovered.

showmount shows clients connected but there are no network nfs
connections open to any client. I have not restarted nfs server
service fearing that the used space would not be recovered.

Any suggestion greatly appreciated

Regards,
-- Max

Re: releasing space after rapid grwoth

[J. Bruce Fields]

On Fri, Jan 21, 2011 at 05:06:45PM -0600, Max Veprinsky wrote:
> Hello all,
> 
> I'm trying to reclaim disk space on stable storage which was consumed
> by a crashed apache process at a rate of ~100GB/hour. This issue has
> happened a few times before and normally resolved by discovering a
> .nfsXXXXX file, stopping the process on the the application server
> that was holding the file. Sometimes the used filespace is recovered
> quickly without manual intervention, other times I had to delete the
> .nfsXXXX file manually.
> 
> Last time this happened 3 TB of disk space was consumed and no
> .nfsXXXX file of that size was discovered, nor. I dismounted all of
> the volumes from the clients 1/2 of the space was recovered.
> 
> showmount shows clients connected but there are no network nfs
> connections open to any client.

And all the clients *have* unmounted, right?

> I have not restarted nfs server
> service fearing that the used space would not be recovered.
> 
> Any suggestion greatly appreciated

More details about the setup?  Are clients and server all Linux, and
what kernel versions?

--b.