svnadmin hotcopy never ends

["Ignacio González (Eliop)" <ig...@googlemail.com>]

svnadmin 1.8.13
Server: Centos 7 64-bit
Repo in local xfs disk
Backups in remote cifs share

This operation works without problems:
$ svnadmin hotcopy /path/to/repo /local/path/to/dest
With a small repo, it takes just a few seconds

But this one does not:
$ svnadmin hotcopy /path/to/repo /remote/path/to/dest

where /remote/path/to/dest is located on a remote cifs share.

Before detailing the problem, let me tell you that this problem did not
happen until I upgraded my server from Centos 5.5 & Subversion 1.6.16 &
local repository over ext3 to the configuration described above. (The
remote cifs share for backups is the same).

Now, the symptons are these: when I launch the hotcopy operation, I can see
that the repo is completely copied to the destination in a few seconds,
except for 3 files. After several minutes (even hours), ps ux shows that
svnadmin hotcopy is still active, but waiting for something that never
happens... No error or warning message is shown.

The three files are:
/path/to/repo/format
/path/to/repo/db/format
/path/to/repo/db/fs-type

It seems to me that these are the last files to be recreated in hotcopy
operations, but I do not really know.

The fact that the operation does succed on a local destination hints to
some problem with permissions, different filesystems, or who knows.

Here are the relevant parts of /etc/fstab, if they are needed:

LABEL=repoxfs   /opt/csvn/data/repositories  xfs  defaults  1 2
//srvr/bkps   /home/csvn/mnt/hotcopies   cifs
username=csvn,domain=*,password=*,rw,uid=csvn,gid=csvn,dir_mode=0755,file_mode=0755
0 0


Any suggestions?

Thanks a lot.

Re: svnadmin hotcopy never ends

["Ignacio González (Eliop)" <ig...@googlemail.com>]

Thanks for your answer, John.

I dumped and re-loaded the repositories, so the formats are the latest.

In the end, it was a problem with the cifs mount. I had to add "nobrl" to
the options in /etc/fstab:

//srvr/bkps   /home/csvn/mnt/hotcopies   cifs  nobrl,username=csvn,domain=*,
password=*,rw,uid=csvn,gid=csvn,dir_mode=0755,file_mode=0755 0 0

That did the trick.

2015-05-04 9:33 GMT+02:00 Johan Corveleyn <jc...@gmail.com>:

> On Fri, May 1, 2015 at 2:21 PM, Ignacio González (Eliop)
> <ig...@googlemail.com> wrote:
> > svnadmin 1.8.13
> > Server: Centos 7 64-bit
> > Repo in local xfs disk
> > Backups in remote cifs share
> >
> > This operation works without problems:
> > $ svnadmin hotcopy /path/to/repo /local/path/to/dest
> > With a small repo, it takes just a few seconds
> >
> > But this one does not:
> > $ svnadmin hotcopy /path/to/repo /remote/path/to/dest
> >
> > where /remote/path/to/dest is located on a remote cifs share.
> >
> > Before detailing the problem, let me tell you that this problem did not
> > happen until I upgraded my server from Centos 5.5 & Subversion 1.6.16 &
> > local repository over ext3 to the configuration described above. (The
> remote
> > cifs share for backups is the same).
> >
> > Now, the symptons are these: when I launch the hotcopy operation, I can
> see
> > that the repo is completely copied to the destination in a few seconds,
> > except for 3 files. After several minutes (even hours), ps ux shows that
> > svnadmin hotcopy is still active, but waiting for something that never
> > happens... No error or warning message is shown.
> >
> > The three files are:
> > /path/to/repo/format
> > /path/to/repo/db/format
> > /path/to/repo/db/fs-type
>
> Can you tell us the contents of those three files please? That will
> show us which format of the backend you're using (you've mentioned svn
> 1.6.16, and I'm not sure if you have 'svnadmin upgrade'd to the latest
> backend format).
>
> > It seems to me that these are the last files to be recreated in hotcopy
> > operations, but I do not really know.
> >
> > The fact that the operation does succed on a local destination hints to
> some
> > problem with permissions, different filesystems, or who knows.
> >
> > Here are the relevant parts of /etc/fstab, if they are needed:
> >
> > LABEL=repoxfs   /opt/csvn/data/repositories  xfs  defaults  1 2
> > //srvr/bkps   /home/csvn/mnt/hotcopies   cifs
> >
> username=csvn,domain=*,password=*,rw,uid=csvn,gid=csvn,dir_mode=0755,file_mode=0755
> > 0 0
>
> I have seen several hotcopy-fixes mentioned for the upcoming 1.9
> release [1]. Maybe, as a test, you can try if the same problem still
> happens with 1.9-beta1?
>
> [1] search for 'hotcopy' in
> http://svn.apache.org/repos/asf/subversion/trunk/CHANGES
>
> --
> Johan
>

Re: svnadmin hotcopy never ends

[Johan Corveleyn <jc...@gmail.com>]

On Fri, May 1, 2015 at 2:21 PM, Ignacio González (Eliop)
<ig...@googlemail.com> wrote:
> svnadmin 1.8.13
> Server: Centos 7 64-bit
> Repo in local xfs disk
> Backups in remote cifs share
>
> This operation works without problems:
> $ svnadmin hotcopy /path/to/repo /local/path/to/dest
> With a small repo, it takes just a few seconds
>
> But this one does not:
> $ svnadmin hotcopy /path/to/repo /remote/path/to/dest
>
> where /remote/path/to/dest is located on a remote cifs share.
>
> Before detailing the problem, let me tell you that this problem did not
> happen until I upgraded my server from Centos 5.5 & Subversion 1.6.16 &
> local repository over ext3 to the configuration described above. (The remote
> cifs share for backups is the same).
>
> Now, the symptons are these: when I launch the hotcopy operation, I can see
> that the repo is completely copied to the destination in a few seconds,
> except for 3 files. After several minutes (even hours), ps ux shows that
> svnadmin hotcopy is still active, but waiting for something that never
> happens... No error or warning message is shown.
>
> The three files are:
> /path/to/repo/format
> /path/to/repo/db/format
> /path/to/repo/db/fs-type

Can you tell us the contents of those three files please? That will
show us which format of the backend you're using (you've mentioned svn
1.6.16, and I'm not sure if you have 'svnadmin upgrade'd to the latest
backend format).

> It seems to me that these are the last files to be recreated in hotcopy
> operations, but I do not really know.
>
> The fact that the operation does succed on a local destination hints to some
> problem with permissions, different filesystems, or who knows.
>
> Here are the relevant parts of /etc/fstab, if they are needed:
>
> LABEL=repoxfs   /opt/csvn/data/repositories  xfs  defaults  1 2
> //srvr/bkps   /home/csvn/mnt/hotcopies   cifs
> username=csvn,domain=*,password=*,rw,uid=csvn,gid=csvn,dir_mode=0755,file_mode=0755
> 0 0

I have seen several hotcopy-fixes mentioned for the upcoming 1.9
release [1]. Maybe, as a test, you can try if the same problem still
happens with 1.9-beta1?

[1] search for 'hotcopy' in
http://svn.apache.org/repos/asf/subversion/trunk/CHANGES

-- 
Johan