[Samba] Failed to store repsFrom - Indexed and full searches both failed!

[Andrew Bartlett]

"Indexed and full searches both failed" is not a good sign.

Failed in this case doesn't just mean 'returned no results', it means
'database error'.  It could be on any record, as the filtering for a
full search has to happen across the whole DB and if any of those
filter tests fail, it will do this.

I think you have another working DC, if so I would demote this broken
DC and replace it. 

Andrew Bartlett

On Wed, 2023-12-06 at 12:45 -0300, Elias Pereira via samba wrote:
> Any thoughts? :D
> 
> On Tue, Dec 5, 2023 at 4:59 PM Elias Pereira <
> empbilly at gmail.com
> > wrote:
> 
> > hi,
> > 
> > After an update to our DC4, I started to notice the error "Failed
> > to store
> > repsFrom - Indexed and full searches both failed!" in the logs.
> > 
> > root at dc4:~# tail -f /var/log/samba/log.samba
> >   Copyright Andrew Tridgell and the Samba Team 1992-2023
> > [2023/12/05 14:09:06.191978,  0]
> > ../../lib/util/become_daemon.c:150(daemon_status)
> >   daemon_status: daemon 'samba' : Starting process...
> > [2023/12/05 14:09:06.373562,  0]
> > ../../source4/samba/server.c:896(binary_smbd_main)
> >   binary_smbd_main: samba: using 'prefork' process model
> > [2023/12/05 16:05:04.141027,  0]
> > ../../source4/dsdb/kcc/kcc_periodic.c:790(samba_kcc_done)
> >   ../../source4/dsdb/kcc/kcc_periodic.c:790: Failed samba_kcc -
> > NT_STATUS_IO_TIMEOUT
> > [2023/12/05 16:06:30.931069,  0]
> > ../../source4/dsdb/common/util.c:3482(dsdb_savereps)
> >   Failed to store repsFrom - Indexed and full searches both failed!
> > 
> > I tried running a "samba-tool drs replicate...", but the error
> > occurs:
> > 
> > ERROR(<class 'samba.drs_utils.drsException'>): DsReplicaSync failed
> > -
> > drsException: DsReplicaSync failed (3221225653, '{Device Timeout}
> > The
> > specified I/O operation on %hs was not completed before the time-
> > out period
> > expired.')
> >   File "/usr/lib/python3/dist-packages/samba/netcmd/drs.py", line
> > 567, in
> > run
> >     drs_utils.sendDsReplicaSync(server_bind, server_bind_handle,
> > source_dsa_guid, NC, req_options)
> >   File "/usr/lib/python3/dist-packages/samba/drs_utils.py", line
> > 100, in
> > sendDsReplicaSync
> >     raise drsException("DsReplicaSync failed %s" % estr)
> > 
> > Pastebin with -d10 drs replicate:
> > https://pastebin.com/raw/LZNTqssa
> > 
> > 
> > Some points:
> > - samba_dnsupdate --verbose --all-names is ok
> > - samba-tool dbcheck --cross-ncs --reset-well-known-acls --fix is
> > ok
> > - samba-tool drs showrepl is ok (it takes +/- 1 minute for the
> > result)
> > 
> > Researching, I saw that it could be the corrupted database, and
> > only
> > demote the DC in question would solve it.
> > 
> > Is that really the case? If so, can I demote and use the same
> > server,
> > including the same hostname and IP?
> > 
> > Thanks!!!
> > 
> > --
> > Elias Pereira
> > 
> 
> 
> -- 
> Elias Pereira
> 
-- 
Andrew Bartlett (he/him)       https://samba.org/~abartlet/
Samba Team Member (since 2001) https://samba.org
Samba Team Lead                https://catalyst.net.nz/services/samba
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