[Samba] samba_spnupdate invoked oom-killer

[Chan Min Wai]

Strange enough oom killer had killed samba again.

Even when I'm not using drbd and also ocfs2 on the sysvol partition (It
have been move to other) just that the rsync and unision was not completed
before today...

But the oom killer happen yesterday.

This vm have 8G RAM...  only have about 10~20 users normally...
And I cannot think of a good reason on why it crash.

Let me remove drbd and ocfs2 to see how...



On Fri, Sep 19, 2014 at 12:21 PM, Chan Min Wai <dcmwai at gmail.com> wrote:

> Dear Louis,
>
> Thank You for the correction.
>
> I'm sorry as I didn't notice the different :)
>
> Thank again
>
> On Tue, Sep 16, 2014 at 9:48 PM, L.P.H. van Belle <belle at bazuin.nl> wrote:
>
>>  Hello Chan
>>
>> Ah, yes i see,
>>
>> rsync -XAavz --log-file /var/log/sysvol-sync.log --delete-after -f"+ */"
>> -f"- *"  /var/lib/samba/sysvol root at server02:/var/lib/samba/  &&
>> /usr/bin/unison
>> This is the correct line.  ^^
>>
>> You did add sysvol in the destination of server02 and it only need its
>> base path. ( aka /var/lib/samba )
>> The unison config  does need /var/lib/samba
>> like  :
>> root = /var/lib/samba
>> root = root at server02:/var/lib/samba
>> AND
>> path = sysvol
>>
>> which make it all work.
>> Can you check and test above?
>>
>>
>> Greetz,
>>
>> Louis
>>
>>
>>  ------------------------------
>> *Van:* Chan Min Wai [mailto:dcmwai at gmail.com]
>> *Verzonden:* dinsdag 16 september 2014 15:31
>> *Aan:* L.P.H. van Belle
>>
>> *CC:* samba at lists.samba.org
>> *Onderwerp:* Re: [Samba] samba_spnupdate invoked oom-killer
>>
>>  Dear Louis,
>>
>> Finally I found my issue, Gentoo need to go eselest unison to choose the
>> current running version so it will make a link on unison to that version.
>>
>> However, it seem to kept creating the sysvol dir....
>>
>> Rsync Command
>> # rsync -XAavz --log-file /var/log/sysvol-sync.log --delete-after -f"+
>> */" -f"- *"  /var/lib/samba/sysvol root at server02:/var/lib/samba/sysvol
>> && /usr/bin/unison
>>
>>  sysvol/sysvol/lost+found/
>>
>> sent 55380 bytes  received 1475 bytes  37903.33 bytes/sec
>> total size is 0  speedup is 0.00
>> Contacting server...
>> Connected [//server01//var/lib/samba -> //server02//var/lib/samba]
>> Looking for changes
>>   Waiting for changes from server
>> Reconciling changes
>>          <---- new dir    sysvol/sysvol/sysvol
>> Propagating updates
>> UNISON 2.40.102 started propagating changes at 21:24:47.36 on 16 Sep 2014
>> [BGN] Copying sysvol/sysvol/sysvol from //server02//var/lib/samba to
>> /var/lib/samba
>> [END] Copying sysvol/sysvol/sysvol
>> UNISON 2.40.102 finished propagating changes at 21:24:47.42 on 16 Sep 2014
>> Saving synchronizer state
>>
>>
>>
>>
>>
>> default.prf
>>
>>  root = /var/lib/samba
>> root = ssh://root@server02//var/lib/samba
>>
>> # Paths to synchronize
>> path = sysvol
>>
>> #ignore = Path stats    ## ignores /var/www/stats
>> auto=true
>> batch=true
>> perms=0
>> rsync=true
>> maxthreads=1
>> retry=3
>> confirmbigdeletes=false
>> servercmd = /usr/bin/unison
>> copythreshold=0
>> copyprog = /usr/bin/rsync -XAavz --rsh='ssh -p 22' --inplace --compress
>> copyprogrest = /usr/bin/rsync -XAavz --rsh='ssh -p 22' --partial
>> --inplace --compress
>> copyquoterem = true
>> copymax = 1
>> logfile = /var/log/sysvol-sync.log
>>
>>
>> On Wed, Sep 10, 2014 at 6:59 PM, L.P.H. van Belle <belle at bazuin.nl>
>> wrote:
>>
>>> Hai Chan,
>>>
>>> sorry for the late reaction, i've been ill .. still a bit..
>>> you can safely disable : copythreshold in you config if needed.
>>> this is only for speeding up copying of big files.
>>> for example.
>>> Unison internal file transfer is 5 MB/s
>>> and the alternative copy method does : 20 MB/s
>>>
>>> these numbers are fictional, you need to mesure that for yourself.
>>> but for sysvol, wel.. the internal is suffician.
>>> I have that option enabled, because of some testing with automated
>>> installations
>>> and there are some big files in these shares.
>>>
>>> Greetz,
>>>
>>> Louis
>>>
>>>
>>> >-----Oorspronkelijk bericht-----
>>> >Van: dcmwai at gmail.com [mailto:samba-bounces at lists.samba.org]
>>> >Namens Chan Min Wai
>>> >Verzonden: maandag 8 september 2014 2:30
>>> >Aan: steve
>>> >CC: samba at lists.samba.org
>>> >Onderwerp: Re: [Samba] samba_spnupdate invoked oom-killer
>>>  >
>>> >Hi Steve,
>>> >
>>> >Ya, can't get it work...
>>> >with this error.
>>> >I wonder Should I just comment the copythreshold line?
>>> >
>>> >sent 44886 bytes  received 1470 bytes  92712.00 bytes/sec
>>> >total size is 0  speedup is 0.00 (DRY RUN)
>>> >Fatal error: File "default", line 7: `copythreshold' is not a
>>> >valid option
>>> >
>>> >
>>> >
>>> >
>>> >On Sun, Sep 7, 2014 at 3:41 PM, steve <steve at steve-ss.com> wrote:
>>> >
>>> >> On Sun, 2014-09-07 at 15:31 +0800, Chan Min Wai wrote:
>>> >> > Dear Steve,
>>> >> >
>>> >> > Ah no more drbd.
>>> >> > I move to Rsync +unison.
>>> >>
>>> >> Hi Chan
>>> >> Ah, I see, but did you get it working? We couldn't.
>>> >> Cheers,
>>> >> Steve
>>> >>
>>> >>
>>> >>
>>>  >--
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>>> >
>>> >
>>>
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>>
>>
>