Hi,

If you look at one of your existing working copies (run for example svn
info from the command line), what is the highest revision number you have
there?

I have a feeling that something has caused the 270 directory to disappear,
thus your repository is now in an inconsistent state. I'm not sure if you
can recover except restoring a backup. If you can run svnadmin dump and
then svnadmin load to a new repository, you can probably get a working
repository with the first 269999 revisions, but you of course loose
everything later than that.

To answer the question about maximum revision number: The ASF main
repository (https://svn.apache.org/repos/asf) is currently at revision
1934607, so over 7 times your repository. I'm not sure about size but I
believe it is quite huge.

Kind regards,
Daniel



Den mån 25 maj 2026 kl 19:13 skrev William Muriithi <
[email protected]>:

> Hi guys and girls
>
>
> Something I missed to mention. Originally, the file contents looked like
> this:-
>
> [root@repos ~]# cat /var/repos/svn/projects/db/current
> 269999
> [root@repos ~]# cat /var/repos/svn/projects/db/txn-current
> 5sbz
>
> These files seem to be important on how SVN makes the decision of which
> directory to dump/look for a file.   So I looked around  and google result
> suggested that the last file may be incorrect.
>
> So I changed it to:-
>
> [root@repos ~]# cat /var/repos/svn/projects/db/txn-current
> 5r3j
>
> MOVE forward:
> I then created the files strace point as SVN access points.  All below
> commands were executed as user apache
>
> mkdir /var/repos/svn/projects/db/revs/270
> cd /var/repos/svn/projects/db/revs/270
> touch 270000 270016 270080 270336
> svnadmin recover /var/repos/svn/projects/
>
> When I tried committing a new, I got a new error:-
>
> svnadmin: E160004: Revision 270336 has a revs file but no revprops file
>
> MOVE backward:
> [root@repos ~]# cat /var/repos/svn/projects/db/current
> 269999
> [root@repos ~]# cat /var/repos/svn/projects/db/txn-current
> 5r3j
>
> svnadmin recover /var/repos/svn/projects/ (As apache user) - It run
> successfully.
>
> Then we went back to SVN client and got the old error
>
> Basically, we can't seem to move it back or forward.
>
> Regards,
> William
>
>
>
> On Mon, 25 May 2026 at 12:24, William Muriithi <[email protected]>
> wrote:
>
>> Hi guys,
>>
>> [root@repos ~]# rpm -qa | grep subversion
>> subversion-libs-1.14.5-3.el10.x86_64_v2
>> subversion-1.14.5-3.el10.x86_64_v2
>> subversion-tools-1.14.5-3.el10.x86_64_v2
>> [root@repos ~]#
>> [root@repos ~]#
>> [root@repos ~]# cat /etc/redhat-release
>> AlmaLinux release 10.1 (Heliotrope Lion)
>> [root@repos ~]#
>> [root@repos ~]# rpm -qa | grep svn
>> mod_dav_svn-1.14.5-3.el10.x86_64_v2
>>
>>
>> I think I have hit a bug.  We have a relatively large SVN repository -
>> About 2TB uncompressed.  2 weeks ago, someone noticed that we can't commit
>> any more.  When we looked at it, it looked like a permission issue.
>>
>> This is the error we are getting from the SVN client.
>>
>> svn: E000001: Commit failed (details follow):
>> svn: E000001: Can't set permissions on
>> '/var/repos/svn/application/db/revs/270'
>> william@william-ryzen:~/Documents/application$
>> [email protected]
>>
>> So we first attempted to "FIX" permissions.  Didn't work.  Then, when
>> reading, I noticed opening up the permission is not a good idea as I can
>> see from strace that svn does try to narrow down the file permissions.  So
>> we decided to restore a fresh to remove all the chmod we had done to the
>> files and directory.
>>
>> This time, when restoring, we created the repo using an apache account.
>> We also loaded the dump file using the svn account.  This removed all
>> possibility this is a file permission issue.  The repo was restored
>> successfully, BUT the problem remained.
>>
>> We looked at the file limit too and to make sure that isn't causing any
>> issues, we changed it to unlimited for the apache user.  The problem
>> remained.
>>
>> It's at this point we attempted to use strace to see what svn is doing.
>> Oddly, it seemed to be looking for files from directory 270, which didn't
>> exist at the time.  We came to the conclusion that was what was happening
>> because these came up when one attempts to commit.
>>
>> openat(AT_FDCWD, "/var/repos/svn/projects/db/revs/270/270336",
>> O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
>> openat(AT_FDCWD, "/var/repos/svn/projects/db/revs/270/270336",
>> O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
>> openat(AT_FDCWD, "/var/repos/svn/projects/db/revs/270/270080",
>> O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
>> openat(AT_FDCWD, "/var/repos/svn/projects/db/revs/270/270080",
>> O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
>> openat(AT_FDCWD, "/var/repos/svn/projects/db/revs/270/270016",
>> O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
>> openat(AT_FDCWD, "/var/repos/svn/projects/db/revs/270/270016",
>> O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
>> openat(AT_FDCWD, "/var/repos/svn/projects/db/revs/270/270000",
>> O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
>> openat(AT_FDCWD, "/var/repos/svn/projects/db/revs/270/270000",
>> O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
>>
>> Note, the directory 270 didn't exist.  According to google, this can
>> happen due to either a hook or CI committing too often creating
>> corruption.  We can't seem to clear the corruption though.  We are also a
>> bit skeptical of its corruption as it should have cleared on a freshly
>> restored repository.
>>
>>
>> So over the weekend, we attempted to separate the projects on the repo to
>> individual repos.  This is to reduce the size of the repo as it could have
>> been causing the issue.  We however kept the revision numbers as they are
>> in documentations and tags.  However, on the now small repo, with only 187
>> GB in size, but with the last successful commit # 269999, we still see
>> the problem.
>>
>> This now looks more like a software bug than a setup issue.  We have "yum
>> updated" the system in an attempt to make sure we have all the bug fixes
>> out there but nothing works.
>>
>> Would anyone know if there is a transaction limit in the current SVN
>> code?  Anyone have a repository with more than 270000 revisions out there
>> please?  Any pointers to something we may have overlooked so far?
>> Something else, the svndump is cleanly at 2 TB, any chance there may be a
>> limit of how big a repo glow??  This was our first thought but since we
>> have created smaller repos and the issue remains, it now looks far more
>> like a sharding logic error to us.
>>
>>
>> Regards,
>> William
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>

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