This can be a misconfiguration. Not necessarily a bug.
Chris Ward wrote:
> I just saw a SIGPIPE on a patched cfservd host, so it hasn't solved the
> SIGPIPE issue where connections are terminated during copy transactions.
> This was largely expected though since patch was implemented more to help
> us scale the environment than to fix the issue with data integrity.
>
> On Mon, 13 Jul 2009, Chris Ward wrote:
>
>> Hi Mark, we just rolled this change out so we're still in the initial
>> stages of gauging its impact.
>>
>> On Fri, 10 Jul 2009, Mark Burgess wrote:
>>
>>> Chris, thanks. If you put this back does it solve any of the issues
>>> you were having?
>>>
>>> Chris Ward wrote:
>>>> Turns out there was some code that was removed from cfservd.c in version
>>>> 2.2.10, and possibly prior to that version. Adding the following to
>>>> cfservd.c returns the ability to turn LastSeen off from within
>>>> cfservd.conf:
>>>>
>>>>
>>>> l321:
>>>>
>>>> if (OptionIs(CONTEXTID,"LastSeen",false))
>>>> {
>>>> LASTSEEN = false;
>>>> }
>>>>
>>>>
>>>> l1840:
>>>>
>>>> if (LASTSEEN)
>>>> {
>>>> LastSeen(dns_assert,cf_accept);
>>>> }
>>>>
>>>>
>>>> ~/src/cfengine-2.2.10/src$ diff cfservd.c cfservd.c.lastseen.fixed
>>>> 320a321,325
>>>>> if (OptionIs(CONTEXTID,"LastSeen",false))
>>>>> {
>>>>> LASTSEEN = false;
>>>>> }
>>>>>
>>>> 1835c1840,1846
>>>> < LastSeen(dns_assert,cf_accept);
>>>> ---
>>>>> if (LASTSEEN)
>>>>> {
>>>>> LastSeen(dns_assert,cf_accept);
>>>>> }
>>>>>
>>>>> /* LastSeen(dns_assert,cf_accept); */
>>>>>
>>>>
>>>>
>>>> On Fri, 10 Jul 2009, Chris Ward wrote:
>>>>
>>>>> I've been able to verify that version 2.2.10 of cfservd does not honor
>>>>> the
>>>>> LastSeen setting. I've tested this out against both libdb-4.2 and
>>>>> libdb-4.6. What happens is that with LastSeen set to 'off' (or 'false')
>>>>> the cfservd process will create a lastseen db file per client that
>>>>> connects, ex. cf_LastSeen.db.host.domain.com. More context is provided
>>>>> below from a prior email.
>>>>>
>>>>> I'm not sure when exactly this bug was introduced, but v2.1.20 of cfservd
>>>>> works as expected. That is, if you set LastSeen to 'false' then
>>>>> v2.1.20 of
>>>>> cfservd will not create a lastseen database file for each client that
>>>>> connects to the server. Maybe LastSeen was omitted as being a valid
>>>>> option
>>>>> in cfservd.conf sometime after 2.1.20?
>>>>>
>>>>>
>>>>> ---------- Forwarded message ----------
>>>>> Date: Tue, 30 Jun 2009 10:04:42 -0700
>>>>> From: Chris Ward <kr...@facebook.com>
>>>>> To: "help-cfeng...@cfengine.org" <help-cfeng...@cfengine.org>
>>>>> Subject: cfservd not honoring lastseen?
>>>>>
>>>>>
>>>>> Hi, has anyone else had difficulty in completely turning off the lastseen
>>>>> databases on the cfservd side (v2.2.10)? I've added "LastSeen = ( off )"
>>>>> to the control section in update.conf, cfagent.conf and even
>>>>> cfservd.conf.
>>>>> According to the docs this is an option to cfagent, and not cfservd,
>>>>> but I
>>>>> thought I'd try adding it to cfservd.conf anyway.
>>>>>
>>>>> So even with this option set to 'off' or 'false' the lastseen database
>>>>> files are populated per host on the server side, ex.
>>>>> cf_LastSeen.db.$fqdn.
>>>>> Running 'cfservd -d0' shows that lastseen is being set to 'off' (see
>>>>> below), but if I clear out all the lastseen db files and restart the
>>>>> cfservd process they are still populated. Can someone speak to what might
>>>>> be instructing cfservd to populate those files? Maybe I'm missing an
>>>>> option to either cfservd.conf or cfagent&update.conf?
>>>>>
>>>>> One interesting debug line is this one (full output below):
>>>>>
>>>>> GetMacroValue(server,LastSeenExpireAfter): using scope 'server' for
>>>>> variable 'LastSeenExpireAfter'
>>>>>
>>>>> We don't define LastSeenExpireAfter on the client side, but maybe it
>>>>> defaults to a value that instructs the server to record lastseen info?
>>>>> I've tried setting LastSeenExpireAfter to '0', but that did not prevent
>>>>> the server from creating the lastseen dbs.
>>>>>
>>>>> -Chris
>>>>>
>>>>>
>>>>>
>>>>> LVALUE LastSeen
>>>>> HandleLVALUE(LastSeen) in action Control Defintions:
>>>>> RecordMacroId(LastSeen)
>>>>> EQUALS =
>>>>> LEFTBRACK
>>>>> RVAL-VAROBJ off
>>>>> ExpandVarstring( off )
>>>>> Add |off| to str, waiting at ||
>>>>> Returning varstring (off)
>>>>> IsInstallable(any) - true
>>>>> Assign variable [LastSeen=off] when any)
>>>>> AddMacroValue(server.LastSeen=off)
>>>>> ExpandVarstring( off )
>>>>> Add |off| to str, waiting at ||
>>>>> Returning varstring (off)
>>>>> Added Macro at hash address 1309 to object server with value LastSeen=off
>>>>> RIGHTBRACK
>>>>>
>>>>> LastSeen(host.example.domain.com) reg
>>>>> IPV4 address
>>>>> sockaddr_ntop(10.0.0.100)
>>>>> Found address (10.0.0.100) for host host.example.domain.com
>>>>> GetMacroValue(server,LastSeenExpireAfter)
>>>>> GetMacroValue(server,LastSeenExpireAfter): using scope 'server' for
>>>>> variable 'LastSeenExpireAfter'
>>>>>
>>>>> _______________________________________________
>>>>> Help-cfengine mailing list
>>>>> help-cfeng...@cfengine.org
>>>>> https://cfengine.org/mailman/listinfo/help-cfengine
>>>>> _______________________________________________
>>>>> Bug-cfengine mailing list
>>>>> Bug-cfengine@cfengine.org
>>>>> https://cfengine.org/mailman/listinfo/bug-cfengine
>>>>>
>>> --
>>> Mark Burgess
>>>
>>> -------------------------------------------------
>>> Professor of Network and System Administration
>>> Oslo University College, Norway
>>>
>>> Personal Web: http://www.iu.hio.no/~mark
>>> Office Telf : +47 22453272
>>> -------------------------------------------------
>>>
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>>
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--
Mark Burgess
-------------------------------------------------
Professor of Network and System Administration
Oslo University College, Norway
Personal Web: http://www.iu.hio.no/~mark
Office Telf : +47 22453272
-------------------------------------------------
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