[Samba] Replication Failing - NT_STATUS_IO_TIMEOUT

[mathias dufresne]

Hi,

Are you using --domain-critical-only switch when joining your new DC? This
switch force Samba to copy only critical stuff when joining the new DC then
this new DC will get all others objects using standard replication process.
This switch helps a lot when Samba database starts to grow a bit. Without
that switch the database is fully replicated during the join command in
some process which looks like a big DB transaction (eating lot of memory,
lot of time, adding possible issues)

Hoping this solves your issue, kindly regards,

mathias

2015-09-25 6:32 GMT+02:00 David Minard <david at scem.uws.edu.au>:

> G'day All,
>
>     I'm trying to commission another DC (number 5) in our production set
> up, as we've opened up a new site.  All DCs are samba-4.0.25 self compiled.
>
>     When trying to domain join, all goes well until it starts to
> replicate.  I get this:
>
> ERROR(runtime): uncaught exception - (-1073741643, 'NT_STATUS_IO_TIMEOUT')
>   File
> "/usr/local/samba/lib64/python2.7/site-packages/samba/netcmd/__init__.py",
> line 175, in _run
>     return self.run(*args, **kwargs)
>   File
> "/usr/local/samba/lib64/python2.7/site-packages/samba/netcmd/domain.py",
> line 552, in run
>     machinepass=machinepass, use_ntvfs=use_ntvfs, dns_backend=dns_backend)
>   File "/usr/local/samba/lib64/python2.7/site-packages/samba/join.py",
> line 1172, in join_DC
>     ctx.do_join()
>   File "/usr/local/samba/lib64/python2.7/site-packages/samba/join.py",
> line 1077, in do_join
>     ctx.join_replicate()
>   File "/usr/local/samba/lib64/python2.7/site-packages/samba/join.py",
> line 817, in join_replicate
>     replica_flags=ctx.domain_replica_flags)
>   File
> "/usr/local/samba/lib64/python2.7/site-packages/samba/drs_utils.py", line
> 248, in replicate
>     (level, ctr) = self.drs.DsGetNCChanges(self.drs_handle, req_level, req)
>
>
> It times out.  Is there any way to increase the time out periods for the
> replication?
>
> --
>
> Cheers,
> David Minard.
> Ph:    0247 360 155
> Fax:    0247 360 770
>
> School of Computing, Engineering, and Mathematics
> Building Y - Penrith Campus (Kingswood)
> Locked bag 1797
> Penrith South DC
> NSW 1797
>
> [Sometimes waking up just isn't worth the insult of the day to come.]
>
>
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