openldap-bugs

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Re: Can slapd run with only one thread to operate (ITS#4842)
by seuler.shi＠gmail.com 14 Feb '07

14 Feb '07

------=_Part_100396_21317226.1171418508303 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline What I want to do is to do operations in OpenLDAP server serially, not concurrency in the server. If the back database is configured to load all data in memory, then overhead of executing a operation is approximately equal the overhead of lock relevant overhead in database. So if requests are serially handled in openldap server, the lock subsystem can be remove from backend database. I just want to compare difference on performance under these two strategy. Although I use ./configure --without-threads, there are still two work threads,(info thread in gdb: there are two pthread_cond_wait records.) Would you give me some suggestion to reach the goal, serially handle the received requests in openldap server? Thanks a lot! 2007/2/14, Pierangelo Masarati <openldap-its(a)openldap.org>: > > Slapd by design needs at least 2 threads to work. That code is there > exactly to > avoid silly configurations with less than 2 threads. You're free to > modify it, > but then you shouldn't complain. Otherwise, if you don't want slapd to > use > threads you can compile it --without-threads (not --without--threads like > you > typed). > > If you could tell us what your real problem is with threads, maybe we > wouldn't > both waste time in this rather pointless issue. > > p. > ------=_Part_100396_21317226.1171418508303 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline <div>What I want to do is to do operations in OpenLDAP server serially, not concurrency</div> <div>in the server. If the back database is configured to load all data in memory, then overhead</div> <div>of executing a operation is approximately equal the overhead of lock relevant overhead in </div> <div>database. So if requests are serially handled in openldap server, the lock subsystem can</div> <div>be remove from backend database. </div> <div> </div> <div>I just want to compare difference on performance under these two strategy.</div> <div> </div> <div>Although I use ./configure --without-threads, there are still two work threads,(info thread in</div> <div>gdb: there are two pthread_cond_wait records.)</div> <div> </div> <div>Would you give me some suggestion to reach the goal, serially handle the received requests</div> <div>in openldap server?</div> <div> </div> <div>Thanks a lot!</div> <div> </div> <div><span class="gmail_quote">2007/2/14, Pierangelo Masarati <<a href="mailto:openldap-its@openldap.org">openldap-its(a)openldap.org</a>>:</span> <blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">Slapd by design needs at least 2 threads to work.  That code is there exactly to<br>avoid silly configurations with less than 2 threads.  You're free to modify it, <br>but then you shouldn't complain.  Otherwise, if you don't want slapd to use<br>threads you can compile it --without-threads (not --without--threads like you<br>typed).<br><br>If you could tell us what your real problem is with threads, maybe we wouldn't <br>both waste time in this rather pointless issue.<br><br>p.<br></blockquote></div><br> ------=_Part_100396_21317226.1171418508303--

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Re: ITS#4656 OpenLDAP accesslog overlay using "changelog dialect"
by ando＠sys-net.it 13 Feb '07

13 Feb '07

hyc(a)symas.com wrote: > Hi, > I have not been paying attention to these changes since Ando was working > on them. You'll have to ask him for their update status. Sorry for overlooking yur previous message. Yes, I'm keeping that patch sort of updated, but keeping it in sync with HEAD was a pain due to the many changes that occurred in that code. I'm not sure it's ready for commit right now, and I'm not sure it works as intended, given the lack of specs (every implementor seem to have their own idea of haw that's supposed to work, and willing to interoperate, despite claims, seems to be their last concern). Preserving compatibility with re23 might not be an option, and I don't think we want that stuff to go in re23 right now. > Since you've already posted a query to the ITS, I think that would be the > appropriate place to continue the conversation. > > Looking over the ITS just now, I would say the tweak to register the > changelog overlay type is unnecessary. Nor can you fairly deprecate the > LogStyle parameter, since that appears to be the only way to invoke the > SunOne workaround. > > All in all I understand your motivations for pursuing this feature. Despite > my dislike for broken specs and broken code, I will not prevent this patch > from going in. But you should realize that wrong is wrong, and just because > Novell, Sun, and Oracle software is broken doesn't mean we should be broken > too. There are other IdM packages out there. I'll be committing something workable soon. p. Ing. Pierangelo Masarati OpenLDAP Core Team SysNet s.n.c. Via Dossi, 8 - 27100 Pavia - ITALIA http://www.sys-net.it ------------------------------------------ Office: +39.02.23998309 Mobile: +39.333.4963172 Email: pierangelo.masarati(a)sys-net.it ------------------------------------------

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Re: ITS#4656 OpenLDAP accesslog overlay using "changelog dialect"
by hyc＠symas.com 13 Feb '07

13 Feb '07

hyc(a)symas.com wrote: > All in all I understand your motivations for pursuing this feature. Despite > my dislike for broken specs and broken code, I will not prevent this patch > from going in. But you should realize that wrong is wrong, and just because > Novell, Sun, and Oracle software is broken doesn't mean we should be broken > too. There are other IdM packages out there. While this is hardly the place for commercial endorsements, I should note that while Neil Dunbar wrote that changelog overlay for HP's purposes, we (Symas) convinced HP to adopt the accesslog format instead and HP does not rely on the changelog any more. If you're looking for software that actually conforms to open specs with some degree of technical merit, you might consider looking there, if you can't convince your current vendors to fix their products. > > Rieger, Sebastian wrote: >> Hi, >> >> I submitted a patch to update the old overlay of Neil Dunbar to OpenLDAP >> 2.3. It works for our identity management (using Novell IDM 3.01) - see >> ITS#4685. As my patch needs cleanup to get into OpenLDAP HEAD I would like >> to ask, wether the patch to your accesslog that offers changelog >> functionality (ITS#4656) is likely to be committed to CVS HEAD in the near >> future. In this case I won't maintain a separate overlay. Thanks in advance >> for a quick reply, we really need changelog functionality as Novell, Sun and >> Oracle seem to depend on it. -- -- Howard Chu Chief Architect, Symas Corp. http://www.symas.com Director, Highland Sun http://highlandsun.com/hyc Chief Architect, OpenLDAP http://www.openldap.org/project/

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AW: ITS#4656 OpenLDAP accesslog overlay using "changelog dialect"
by sebastian.rieger＠gwdg.de 13 Feb '07

13 Feb '07

This is a multi-part message in MIME format. ------=_NextPart_000_00AD_01C74F6A.DE443C50 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Thanks for the quick reply, I'd continue the conversation with Ando and = via IST, thanks for putting them on CC:. Can you name the IdM packages you = refer to, that implement a replication mechanism that is compatible with = OpenLDAP? We tested: - Microsoft Identity Integration Server: only flat-file LDAP support = (using LDIF) (until Gemini version ~2008) - no replication, just full synchronization - Siemens DirX: using a full search over all objects (Novell Identity Manager can do so either, but you're unable to detect moved objects = then, as it looks like a delete and add of the object, and performance is low, as = for every sync cycle a full search over the tree is necessary) Oracle and Sun using changelog were already mentioned... Maybe IBM? or do you refer to the meta backend module for OpenLDAP? Thanks in advance for the advice... -- MfG Sebastian Rieger Gesellschaft f=FCr wissenschaftliche Datenverarbeitung mbH G=F6ttingen=20 Am Fassberg - 37077 G=F6ttingen Fon: +49 551 201 1878 -- Fax: +49 551 201 2150 Die digitale Unterschrift dieser Mail kann anhand des Zertifikats des = DFN =FCberpr=FCft werden: = https://ca.gwdg.de/certs/root-classic/root-ca-cert.der -----Urspr=FCngliche Nachricht----- Von: Howard Chu [mailto:hyc@symas.com]=20 Gesendet: Dienstag, 13. Februar 2007 12:20 An: Rieger, Sebastian Cc: Heuer, Konrad; ando(a)OpenLDAP.org; openldap-its(a)OpenLDAP.org Betreff: Re: ITS#4656 OpenLDAP accesslog overlay using "changelog = dialect" Hi, I have not been paying attention to these changes since Ando was = working on them. You'll have to ask him for their update status. Since you've already posted a query to the ITS, I think that would be = the appropriate place to continue the conversation. Looking over the ITS just now, I would say the tweak to register the changelog overlay type is unnecessary. Nor can you fairly deprecate the LogStyle parameter, since that appears to be the only way to invoke the SunOne workaround. All in all I understand your motivations for pursuing this feature. = Despite my dislike for broken specs and broken code, I will not prevent this = patch from going in. But you should realize that wrong is wrong, and just = because Novell, Sun, and Oracle software is broken doesn't mean we should be = broken too. There are other IdM packages out there. Rieger, Sebastian wrote: > Hi, >=20 > I submitted a patch to update the old overlay of Neil Dunbar to=20 > OpenLDAP 2.3. It works for our identity management (using Novell IDM=20 > 3.01) - see ITS#4685. As my patch needs cleanup to get into OpenLDAP=20 > HEAD I would like to ask, wether the patch to your accesslog that=20 > offers changelog functionality (ITS#4656) is likely to be committed to = > CVS HEAD in the near future. In this case I won't maintain a separate=20 > overlay. Thanks in advance for a quick reply, we really need changelog = > functionality as Novell, Sun and Oracle seem to depend on it. >=20 > -- > MfG >=20 > Sebastian Rieger >=20 > Gesellschaft f=FCr wissenschaftliche Datenverarbeitung mbH G=F6ttingen = Am=20 > Fassberg - 37077 G=F6ttingen > Fon: +49 551 201 1878 -- Fax: +49 551 201 2150 >=20 > Die digitale Unterschrift dieser Mail kann anhand des Zertifikats des=20 > DFN =FCberpr=FCft werden:=20 > https://ca.gwdg.de/certs/root-classic/root-ca-cert.der >=20 --=20 -- Howard Chu Chief Architect, Symas Corp. http://www.symas.com Director, Highland Sun http://highlandsun.com/hyc Chief Architect, OpenLDAP http://www.openldap.org/project/ ------=_NextPart_000_00AD_01C74F6A.DE443C50 Content-Type: application/x-pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIXujCCBHUw 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Re: ITS#4656 OpenLDAP accesslog overlay using "changelog dialect"
by hyc＠symas.com 13 Feb '07

13 Feb '07

Hi, I have not been paying attention to these changes since Ando was working on them. You'll have to ask him for their update status. Since you've already posted a query to the ITS, I think that would be the appropriate place to continue the conversation. Looking over the ITS just now, I would say the tweak to register the changelog overlay type is unnecessary. Nor can you fairly deprecate the LogStyle parameter, since that appears to be the only way to invoke the SunOne workaround. All in all I understand your motivations for pursuing this feature. Despite my dislike for broken specs and broken code, I will not prevent this patch from going in. But you should realize that wrong is wrong, and just because Novell, Sun, and Oracle software is broken doesn't mean we should be broken too. There are other IdM packages out there. Rieger, Sebastian wrote: > Hi, > > I submitted a patch to update the old overlay of Neil Dunbar to OpenLDAP > 2.3. It works for our identity management (using Novell IDM 3.01) - see > ITS#4685. As my patch needs cleanup to get into OpenLDAP HEAD I would like > to ask, wether the patch to your accesslog that offers changelog > functionality (ITS#4656) is likely to be committed to CVS HEAD in the near > future. In this case I won't maintain a separate overlay. Thanks in advance > for a quick reply, we really need changelog functionality as Novell, Sun and > Oracle seem to depend on it. > > -- > MfG > > Sebastian Rieger > > Gesellschaft für wissenschaftliche Datenverarbeitung mbH Göttingen > Am Fassberg - 37077 Göttingen > Fon: +49 551 201 1878 -- Fax: +49 551 201 2150 > > Die digitale Unterschrift dieser Mail kann anhand des Zertifikats des DFN > überprüft werden: https://ca.gwdg.de/certs/root-classic/root-ca-cert.der > -- -- Howard Chu Chief Architect, Symas Corp. http://www.symas.com Director, Highland Sun http://highlandsun.com/hyc Chief Architect, OpenLDAP http://www.openldap.org/project/

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Re: ITS#2240
by hyc＠symas.com 13 Feb '07

13 Feb '07

Gavin Henry wrote: > <quote who="Howard Chu"> >> Gavin Henry wrote: >>> hyc(a)symas.com said the following on 12/02/07 11:04: >>>> I've written up all of the remaining missing pages noted in this ITS. >>>> Someone >>>> else should review the docs to double-check and see if anything was >>>> omitted. >>>> I'll leave it up to someone else to add to RE23 if desired, otherwise >>>> we'll >>>> just leave these for RE24. >>> >>> I can't see any of these in man3 at: >>> >>> http://www.openldap.org/devel/cvsweb.cgi/doc/man/man3/?hideattic=1&sortbyda… >>> >>> Am I looking in the wrong place? >> They all show up for me... >> >> http://www.openldap.org/devel/cvsweb.cgi/doc/man/man3/lber-sockbuf.3 >> http://www.openldap.org/devel/cvsweb.cgi/doc/man/man3/lber-types.3 >> http://www.openldap.org/devel/cvsweb.cgi/doc/man/man3/ldap_bind.3 >> (ITS#3349) >> http://www.openldap.org/devel/cvsweb.cgi/doc/man/man3/ldap_controls.3 >> http://www.openldap.org/devel/cvsweb.cgi/doc/man/man3/ldap_memory.3 >> http://www.openldap.org/devel/cvsweb.cgi/doc/man/man3/ldap_open.3 >> (ITS#4662) >> http://www.openldap.org/devel/cvsweb.cgi/doc/man/man3/ldap_tls.3 >> > > Must have been "early morning blind eyes" ;-) Thanks for checking. Please also double-check the corresponding .links files to make sure all the named functions are accounted for... -- -- Howard Chu Chief Architect, Symas Corp. http://www.symas.com Director, Highland Sun http://highlandsun.com/hyc Chief Architect, OpenLDAP http://www.openldap.org/project/

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Re: ITS#2240
by ghenry＠suretecsystems.com 13 Feb '07

13 Feb '07

<quote who="Howard Chu"> > Gavin Henry wrote: >> hyc(a)symas.com said the following on 12/02/07 11:04: >>> I've written up all of the remaining missing pages noted in this ITS. >>> Someone >>> else should review the docs to double-check and see if anything was >>> omitted. >>> I'll leave it up to someone else to add to RE23 if desired, otherwise >>> we'll >>> just leave these for RE24. >> >> >> I can't see any of these in man3 at: >> >> http://www.openldap.org/devel/cvsweb.cgi/doc/man/man3/?hideattic=1&sortbyda… >> >> Am I looking in the wrong place? > > They all show up for me... > > http://www.openldap.org/devel/cvsweb.cgi/doc/man/man3/lber-sockbuf.3 > http://www.openldap.org/devel/cvsweb.cgi/doc/man/man3/lber-types.3 > http://www.openldap.org/devel/cvsweb.cgi/doc/man/man3/ldap_bind.3 > (ITS#3349) > http://www.openldap.org/devel/cvsweb.cgi/doc/man/man3/ldap_controls.3 > http://www.openldap.org/devel/cvsweb.cgi/doc/man/man3/ldap_memory.3 > http://www.openldap.org/devel/cvsweb.cgi/doc/man/man3/ldap_open.3 > (ITS#4662) > http://www.openldap.org/devel/cvsweb.cgi/doc/man/man3/ldap_tls.3 > Must have been "early morning blind eyes" ;-) Thanks.

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(ITS#4842) Can slapd run with only one thread to operate
by seuler.shi＠gmail.com 13 Feb '07

13 Feb '07

Full_Name: Seuler.Shi Version: 2.3.30 OS: SUSE server 9.2 URL: ftp://ftp.openldap.org/incoming/ Submission from: (NULL) (194.138.202.50) The threads parameter in slapd.conf can not be configured below 2. I pretend to eleminate this limit by removing the folloing code in servers\slapd\bconfig.c file ================================================================= if ( c->value_int < 2 ) { snprintf( c->msg, sizeof( c->msg ), "threads=%d smaller than minimum value 2", c->value_int ); Debug(LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 ); return 1; } else if ( c->value_int > 2 * SLAP_MAX_WORKER_THREADS ) { snprintf( c->msg, sizeof( c->msg ), "warning, threads=%d larger than twice the default (2*%d=%d); YMMV", c->value_int, SLAP_MAX_WORKER_THREADS, 2 * SLAP_MAX_WORKER_THREADS ); Debug(LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 ); } ==================================================================== After rebuilding the modified code, the slapd can not operate request and return. I have tried another method: build the code with configuring --without--threads, the newly bebuilt code can start but can not accpet request and return and segment fault error, then the slapd crashes. How to modify the code to eleminate limit of the minimum number of threads? Thanks a lot!

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Re: ITS#2240
by hyc＠symas.com 13 Feb '07

13 Feb '07

Gavin Henry wrote: > hyc(a)symas.com said the following on 12/02/07 11:04: >> I've written up all of the remaining missing pages noted in this ITS. Someone >> else should review the docs to double-check and see if anything was omitted. >> I'll leave it up to someone else to add to RE23 if desired, otherwise we'll >> just leave these for RE24. > > > I can't see any of these in man3 at: > > http://www.openldap.org/devel/cvsweb.cgi/doc/man/man3/?hideattic=1&sortbyda… > > Am I looking in the wrong place? They all show up for me... http://www.openldap.org/devel/cvsweb.cgi/doc/man/man3/lber-sockbuf.3 http://www.openldap.org/devel/cvsweb.cgi/doc/man/man3/lber-types.3 http://www.openldap.org/devel/cvsweb.cgi/doc/man/man3/ldap_bind.3 (ITS#3349) http://www.openldap.org/devel/cvsweb.cgi/doc/man/man3/ldap_controls.3 http://www.openldap.org/devel/cvsweb.cgi/doc/man/man3/ldap_memory.3 http://www.openldap.org/devel/cvsweb.cgi/doc/man/man3/ldap_open.3 (ITS#4662) http://www.openldap.org/devel/cvsweb.cgi/doc/man/man3/ldap_tls.3 -- -- Howard Chu Chief Architect, Symas Corp. http://www.symas.com Director, Highland Sun http://highlandsun.com/hyc Chief Architect, OpenLDAP http://www.openldap.org/project/

1 0

Re: ITS#2240
by ghenry＠suretecsystems.com 13 Feb '07

13 Feb '07

hyc(a)symas.com said the following on 12/02/07 11:04: > I've written up all of the remaining missing pages noted in this ITS. Someone > else should review the docs to double-check and see if anything was omitted. > I'll leave it up to someone else to add to RE23 if desired, otherwise we'll > just leave these for RE24. I can't see any of these in man3 at: http://www.openldap.org/devel/cvsweb.cgi/doc/man/man3/?hideattic=1&sortbyda… Am I looking in the wrong place? Gavin. -- Kind Regards, Gavin Henry. Managing Director. T +44 (0) 1224 279484 M +44 (0) 7930 323266 F +44 (0) 1224 824887 E ghenry(a)suretecsystems.com Open Source. Open Solutions.(tm) http://www.suretecsystems.com/

1 0

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