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Antwort: Re: (ITS#4758) valsort + dynlist can cause 100% cpu utilization causing slapd to become unresponsive
by Michael.Heep＠o2.com 12 Jan '07

12 Jan '07

Dies ist eine mehrteilige Nachricht im MIME-Format. --=_alternative 005BCC39C1257261_= Content-Type: text/plain; charset="US-ASCII" Today I deployed a patched 2.3.32 version on one of our replicas and changed the config to include the aforementioned dynlist/valsort construct. It's been running nicely for a few hours now. Seems like the patch fixed this issue. Thank you very much! With kind regards Michael Heep Pierangelo Masarati <ando(a)sys-net.it> 11.01.2007 23:37 An michael.heep(a)o2.com Kopie openldap-its(a)openldap.org Thema Re: (ITS#4758) valsort + dynlist can cause 100% cpu utilization causing slapd to become unresponsive michael.heep(a)o2.com wrote: > the following valsort + dynlist combination causes slapd to utilize 100% cpu > time when issueing searches against parts of the DIT containing attribute-value > pairs "created" by dynlist: > > overlay dynlist > dynlist-attrset extensibleObject memberURL uniqueMember > > overlay valsort > valsort-attr uniqueMember dc=o2online,dc=de alpha-ascend > > When run independent both overlays work flawlessly. > A bug (ITS#4801) was recently fixed in slapo-dynlist(5) which appeared in conjunction with slapo-valsort(5). The fix is available both in HEAD and in re23 CVS (tag OPENLDAP_REL_ENG_2_3). The relevant change is in servers/slapd/overlays/dynlist.c 1.28 -> 1.29 (HEAD) or 1.5.2.9 -> 1.5.2.10 (re23). Could you please check if it does any good to the issue you reported? Thanks, 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 ------------------------------------------ --=_alternative 005BCC39C1257261_= Content-Type: text/html; charset="US-ASCII" Today I deployed a patched 2.3.32 version on one of our replicas and changed the config to include the aforementioned dynlist/valsort construct. It's been running nicely for a few hours now. Seems like the patch fixed this issue. Thank you very much! With kind regards Michael Heep <table width=100%> <tr valign=top> <td width=40%>Pierangelo Masarati <ando(a)sys-net.it> 11.01.2007 23:37 <td width=59%> <table width=100%> <tr valign=top> <td> <div align=right>An</div> <td>michael.heep(a)o2.com <tr valign=top> <td> <div align=right>Kopie</div> <td>openldap-its(a)openldap.org <tr valign=top> <td> <div align=right>Thema</div> <td>Re: (ITS#4758) valsort + dynlist can cause 100% cpu utilization causing slapd to become unresponsive </table> <table> <tr valign=top> <td> <td></table> </table> <tt>michael.heep(a)o2.com wrote: > the following valsort + dynlist combination causes slapd to utilize 100% cpu > time when issueing searches against parts of the DIT containing attribute-value > pairs "created" by dynlist: > > overlay dynlist > dynlist-attrset                extensibleObject memberURL uniqueMember > > overlay valsort > valsort-attr uniqueMember dc=o2online,dc=de alpha-ascend > > When run independent both overlays work flawlessly. >   A bug (ITS#4801) was recently fixed in slapo-dynlist(5) which appeared in conjunction with slapo-valsort(5).  The fix is available both in HEAD and in re23 CVS (tag OPENLDAP_REL_ENG_2_3).  The relevant change is in servers/slapd/overlays/dynlist.c 1.28 -> 1.29 (HEAD) or 1.5.2.9 -> 1.5.2.10 (re23).  Could you please check if it does any good to the issue you reported? Thanks, 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 ------------------------------------------ </tt> --=_alternative 005BCC39C1257261_=--

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Deny bind for subtree not working?
by Daniel Hasler 12 Jan '07

12 Jan '07

Hi I try to deni BIND for all entries in a subtree. I compiled openldap with the LDAP backend, because this is only a proxy that forwards request to another directory. Following is my configuration: >include /local/home/hasleda4/openldap/etc/openldap/schema/core.schema >include /local/home/hasleda4/openldap/etc/openldap/schema/cosine.schema >include /local/home/hasleda4/openldap/etc/openldap/schema/inetorgperson.schema > >pidfile /local/home/hasleda4/openldap/var/run/gaad-slapd.pid >argsfile /local/home/hasleda4/openldap/var/run/gaad-slapd.args > >database ldap >suffix "dc=company,dc=com" >uri "ldaps://other-dir.net:26930" > >access to dn.subtree="ou=people,ou=intranet,dc=company,dc=com" by dn.subtree="ou=applications,ou=intranet,dc=company,dc=com" read > by * none >access to dn.subtree="ou=applications,ou=intranet,dc=company,dc=com" by users read > by anonymous auth > by * none >access to * by * read As by the first ACL, anonymous users are not allowed to bind against "ou=people,ou=intranet,dc=novartis,dc=com". If I now try to bind, the ACL seems not to be evaluated (I run slapd with -d 128 to see ACL processing, and there is no output during the BIND) and the BIND operation succeeds if I give the correct password. Is this a bug? Or just how openldap behaves for bind operations? Is there another way to deny bind operations for a subtree? Thanks for any response. Cheers Dani

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Re: (ITS#4758) valsort + dynlist can cause 100% cpu utilization causing slapd to become unresponsive
by ando＠sys-net.it 11 Jan '07

11 Jan '07

michael.heep(a)o2.com wrote: > the following valsort + dynlist combination causes slapd to utilize 100% cpu > time when issueing searches against parts of the DIT containing attribute-value > pairs "created" by dynlist: > > overlay dynlist > dynlist-attrset extensibleObject memberURL uniqueMember > > overlay valsort > valsort-attr uniqueMember dc=o2online,dc=de alpha-ascend > > When run independent both overlays work flawlessly. > A bug (ITS#4801) was recently fixed in slapo-dynlist(5) which appeared in conjunction with slapo-valsort(5). The fix is available both in HEAD and in re23 CVS (tag OPENLDAP_REL_ENG_2_3). The relevant change is in servers/slapd/overlays/dynlist.c 1.28 -> 1.29 (HEAD) or 1.5.2.9 -> 1.5.2.10 (re23). Could you please check if it does any good to the issue you reported? Thanks, 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#4801) segfault in dynlist
by quanah＠stanford.edu 11 Jan '07

11 Jan '07

--On Thursday, January 11, 2007 9:15 PM +0000 ando(a)sys-net.it wrote: > quanah(a)stanford.edu wrote: >> Okay, I can confirm it works as expected once valsort is no longer >> used.... >> > Please try servers/slapd/overlays/dynlist.c 1.28 -> 1.29 Now it works with valsort also loaded. :) --Quanah -- Quanah Gibson-Mount Principal Software Developer ITS/Shared Application Services Stanford University GnuPG Public Key: http://www.stanford.edu/~quanah/pgp.html

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Re: (ITS#4801) segfault in dynlist
by ando＠sys-net.it 11 Jan '07

11 Jan '07

quanah(a)stanford.edu wrote: > Okay, I can confirm it works as expected once valsort is no longer used.... > Please try servers/slapd/overlays/dynlist.c 1.28 -> 1.29 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#4801) segfault in dynlist
by quanah＠stanford.edu 11 Jan '07

11 Jan '07

--On Thursday, January 11, 2007 8:57 PM +0000 quanah(a)stanford.edu wrote: > > > --On Thursday, January 11, 2007 9:53 PM +0100 Pierangelo Masarati > <ando(a)sys-net.it> wrote: > >> quanah(a)stanford.edu wrote: >>> Full_Name: Quanah Gibson-Mount >>> Version: 2.3.32 >>> OS: Linux 2.6 (64-bit) >>> URL: ftp://ftp.openldap.org/incoming/ >>> Submission from: (NULL) (171.64.19.81) >>> >> I'm not seeing anything like that, neither with HEAD nor with re23. It >> might be worth having a bit more details on your configuration, since >> that resulting from test044 (which basically complies with the info you >> provided) doesn't even hit that line of code (because rs->sr_flags == 0). >> So there must be something in between that causes the entry to be freed. >> That could be slapo-dynlist in some cases, but also slapo-translucent, >> slapo-collect, slapo-rwm or slapo-valsort. I guess at this point you >> should share the conf, the data and the op that's causing trouble. > > The search I'm performing is: Okay, I can confirm it works as expected once valsort is no longer used.... --Quanah -- Quanah Gibson-Mount Principal Software Developer ITS/Shared Application Services Stanford University GnuPG Public Key: http://www.stanford.edu/~quanah/pgp.html

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Re: (ITS#4801) segfault in dynlist
by quanah＠stanford.edu 11 Jan '07

11 Jan '07

--On Thursday, January 11, 2007 9:53 PM +0100 Pierangelo Masarati <ando(a)sys-net.it> wrote: > quanah(a)stanford.edu wrote: >> Full_Name: Quanah Gibson-Mount >> Version: 2.3.32 >> OS: Linux 2.6 (64-bit) >> URL: ftp://ftp.openldap.org/incoming/ >> Submission from: (NULL) (171.64.19.81) >> > I'm not seeing anything like that, neither with HEAD nor with re23. It > might be worth having a bit more details on your configuration, since > that resulting from test044 (which basically complies with the info you > provided) doesn't even hit that line of code (because rs->sr_flags == 0). > So there must be something in between that causes the entry to be freed. > That could be slapo-dynlist in some cases, but also slapo-translucent, > slapo-collect, slapo-rwm or slapo-valsort. I guess at this point you > should share the conf, the data and the op that's causing trouble. The search I'm performing is: ldapsearch -LLL -Q -h ldap-dev1.stanford.edu -b "cn=groups,cn=applications,dc=stanford,dc=edu" the slapd.conf is as follows, and the group configurations are as previously noted. My principal has full read into the LDAP database, so the only ACL parsed is access to * for it. I am using valsort, so perhaps it is an interaction between those two? # $Id: slapd.conf.dev,v 1.7 2007/01/11 00:05:44 quanah Exp $ # # See slapd.conf(5) for details on configuration options. # This file should NOT be world readable. # include /usr/local/etc/openldap/schema/core.schema include /usr/local/etc/openldap/schema/cosine.schema include /usr/local/etc/openldap/schema/dyngroup.schema include /usr/local/etc/openldap/schema/krb5-kdc.schema include /usr/local/etc/openldap/schema/inetorgperson.schema include /usr/local/etc/openldap/schema/misc.schema include /usr/local/etc/openldap/schema/nis.schema include /usr/local/etc/openldap/schema/eduperson.schema include /usr/local/etc/openldap/schema/suacct.schema include /usr/local/etc/openldap/schema/superson.schema include /usr/local/etc/openldap/schema/suapplication.schema # Allow V2 binds allow bind_v2 # Use star cert TLSCertificateFile /usr/local/etc/openldap/stardomain.crt TLSCertificateKeyFile /usr/local/etc/openldap/stardomain.key TLSCACertificateFile /usr/local/etc/openldap/comodo.pem # Define global ACLs include /usr/local/etc/openldap/slapd.acl # pidfile /var/run/slapd.pid argsfile /var/run/slapd.args # Set the default search base for clients that don't specify a base. defaultsearchbase "dc=stanford,dc=edu" # Turn gentlehup off, it takes too long. gentlehup off # Read slapd.conf(5) for possible values loglevel 256 # Set the number of threads (8 seems to work best) threads 8 # Set the number of threads to use in tool mode tool-threads 2 # Set the timeout for idle connections #idletimeout 30 # SASL conf sasl-realm stanford.edu sasl-authz-policy both sasl-regexp uid=(.*)/cgi,cn=stanford.edu,cn=gssapi,cn=auth ldap:///cn=cgi,cn=applications,dc=stanford,dc=edu??sub?krb5PrincipalName=$1/cgi@stanford.edu sasl-regexp uid=service/(.*),cn=stanford.edu,cn=gssapi,cn=auth ldap:///cn=Service,cn=Applications,dc=stanford,dc=edu??sub?krb5PrincipalName=service/$1@stanford.edu sasl-regexp uid=webauth/(.*),cn=stanford.edu,cn=gssapi,cn=auth ldap:///cn=Webauth,cn=Applications,dc=stanford,dc=edu??sub?krb5PrincipalName=webauth/$1@stanford.edu sasl-regexp uid=(.*),cn=stanford.edu,cn=gssapi,cn=auth ldap:///uid=$1,cn=Accounts,dc=stanford,dc=edu??sub?suSeasStatus=active # Load dynamic backend modules: modulepath /usr/local/lib/openldap moduleload back_hdb.la moduleload back_monitor.la moduleload valsort.la moduleload dynlist.la ####################################################################### # stanford.edu database definitions ####################################################################### database hdb suffix "dc=stanford,dc=edu" rootdn "cn=manager,dc=stanford,dc=edu" # Valsort Overlay overlay valsort valsort-attr ou cn=people,dc=stanford,dc=edu weighted valsort-attr suAffiliation cn=people,dc=stanford,dc=edu weighted valsort-attr suDisplayAffiliation cn=people,dc=stanford,dc=edu weighted # Dynlist Overlay overlay dynlist dynlist-attrset groupOfURLS memberURL member # Let ldapadmin have limitless searches limits group="cn=ldapadmin,cn=applications,dc=stanford,dc=edu" time.soft=unlimited time.hard=unlimited size.soft=unlimited size.hard=unlimited # Let the Athletics principal have limitless searches limits dn.exact="cn=athletics,cn=service,cn=applications,dc=stanford,dc=edu" time.soft=unlimited time.hard=unlimited size.soft=unlimited size.hard=unlimited # Let the Authority audit principal have limitless searches limits dn.exact="cn=workgroup-audit,cn=service,cn=applications,dc=stanford,dc=edu" time.soft=unlimited time.hard=unlimited size.soft=unlimited size.hard=unlimited # Let the Registry Data Auditor principal have limitless searches limits dn.exact="cn=RegistryDataAuditor,cn=Service,cn=Applications,dc=stanford,dc=edu" time.soft=unlimited time.hard=unlimited size.soft=unlimited size.hard=unlimited # Let the ispace prinicpal have a search of 5000 entries limits dn.exact="cn=ispace,cn=Service,cn=Applications,dc=stanford,dc=edu" time.soft=unlimited time.hard=unlimited size.soft=5000 size.hard=5000 # Let the GSB person principal have unlimited searches limits dn.exact="cn=gsb-person,cn=service,cn=applications,dc=stanford,dc=edu" time.soft=unlimited time.hard=unlimited size.soft=unlimited size.hard=unlimited # Save the time that the entry gets modified lastmod on include /usr/local/etc/openldap/syncrepl.conf # Set the location of where the database storage files go. directory /var/lib/ldap dbconfig set_cachesize 3 536870912 1 dbconfig set_lg_regionmax 262144 dbconfig set_lg_bsize 2097152 dbconfig set_lg_dir /var/log/bdb dbconfig set_lk_max_locks 3000 dbconfig set_lk_max_objects 1500 dbconfig set_lk_max_lockers 1500 # # Automatically remove log files that are no longer needed. dbconfig set_flags DB_LOG_AUTOREMOVE # # Setting set_tas_spins reduces resource contention from multiple clients on systems with multiple CPU's. dbconfig set_tas_spins 1 # Checkpoint the database to prevent transaction loss in unclean shutdowns, and speed up slapd shutdowns. checkpoint 1024 5 # Entries to cache in memory cachesize 50000 # IDL Entries to cache in memory idlcachesize 50000 # Entries to free up when cache gets full cachefree 1000 # Change the sub_any index length from 4 to 3 so that searches like *lee* work. index_substr_any_len 3 # Indices to maintain index default eq index cn eq,sub index dc index displayName index entryUUID index givenName eq,sub index homePhone eq,sub index krb5PrincipalName index mail eq,sub index mobile eq,sub index modifyTimestamp index o index objectClass index pager eq,sub index sn eq,sub,approx index suAffiliation index suCalendarStatus index suCardNumber pres,eq index suCN eq,sub index suDialinStatus index suDisplayAffiliation index suEmailPager eq,sub index suGeneralID eq,sub index suGivenName eq,sub index suGwAffilFax1 eq,sub index suGwAffilFax2 eq,sub index suGwAffilFax3 eq,sub index suGwAffilFax4 eq,sub index suGwAffilFax5 eq,sub index suGwAffilPhone1 eq,sub index suGwAffilPhone2 eq,sub index suGwAffilPhone3 eq,sub index suGwAffilPhone4 eq,sub index suGwAffilPhone5 eq,sub index suKerberosStatus index suLelandStatus index suLocalPhone eq,sub index suMaildrop index suOtherName index suPermanentPhone eq,sub index suPrimaryOrganizationID index suPrivilegeGroup eq,sub index suProxyCardNumber pres,eq index suRegID index suRegisteredName eq,sub index suResidencePhone eq,sub index suSearchID index suSeasStatus index suSeasSunetID index suSN eq,sub,approx index suSunetID index suUniqueIdentifier index suUnivID index suVisibAffilAddress1 index suVisibAffilAddress2 index suVisibAffilAddress3 index suVisibAffilAddress4 index suVisibAffilAddress5 index suVisibAffilFax1 index suVisibAffilFax2 index suVisibAffilFax3 index suVisibAffilFax4 index suVisibAffilFax5 index suVisibAffiliation1 index suVisibAffiliation2 index suVisibAffiliation3 index suVisibAffiliation4 index suVisibAffiliation5 index suVisibAffilPhone1 index suVisibAffilPhone2 index suVisibAffilPhone3 index suVisibAffilPhone4 index suVisibAffilPhone5 index suVisibEmail index suVisibFacsimileTelephoneNumber index suVisibHomeAddress index suVisibHomePage index suVisibHomePhone index suVisibIdentity index suVisibLocalAddress index suVisibMailAddress index suVisibMailCode index suVisibMobilePhone index suVisibPagerEmail index suVisibPagerPhone index suVisibPermanentAddress index suVisibProfile index suVisibStreet index suVisibSunetID index suVisibTelephoneNumber index telephoneNumber eq,sub index uid pres,eq index uidNumber ####################################################################### # back-monitor database definitions ####################################################################### database monitor reverse-lookup on -- Quanah Gibson-Mount Principal Software Developer ITS/Shared Application Services Stanford University GnuPG Public Key: http://www.stanford.edu/~quanah/pgp.html

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Re: (ITS#4801) segfault in dynlist
by ando＠sys-net.it 11 Jan '07

11 Jan '07

quanah(a)stanford.edu wrote: > Full_Name: Quanah Gibson-Mount > Version: 2.3.32 > OS: Linux 2.6 (64-bit) > URL: ftp://ftp.openldap.org/incoming/ > Submission from: (NULL) (171.64.19.81) > I'm not seeing anything like that, neither with HEAD nor with re23. It might be worth having a bit more details on your configuration, since that resulting from test044 (which basically complies with the info you provided) doesn't even hit that line of code (because rs->sr_flags == 0). So there must be something in between that causes the entry to be freed. That could be slapo-dynlist in some cases, but also slapo-translucent, slapo-collect, slapo-rwm or slapo-valsort. I guess at this point you should share the conf, the data and the op that's causing trouble. p. 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#4801) segfault in dynlist
by quanah＠stanford.edu 11 Jan '07

11 Jan '07

--On Thursday, January 11, 2007 12:18 AM +0000 quanah(a)stanford.edu wrote: > Full_Name: Quanah Gibson-Mount > Version: 2.3.32 > OS: Linux 2.6 (64-bit) > URL: ftp://ftp.openldap.org/incoming/ > Submission from: (NULL) (171.64.19.81) > > > I decided to start playing with the dynlist overlay, but it cores slapd: I removed all my custom patches, and validated this happens in stock 2.3.32: (gdb) bt #0 0x00002b3947cbb3e3 in __db_shalloc (p=Variable "p" is not available. ) at ../dist/../env/db_salloc.c:157 #1 0x00002b3947cd8e2d in __memp_alloc (dbmp=0x2b3946abe2a0, memreg=0x2b3946abe1c0, mfp=0x2b3a43d2beb8, len=16543, offsetp=0x0, retp=0x414fc000) at ../dist/../mp/mp_alloc.c:94 #2 0x00002b3947cda2f6 in __memp_fget (dbmfp=0x2b39479af960, pgnoaddr=0x414fc0fc, flags=0, addrp=Variable "addrp" is not available. ) at ../dist/../mp/mp_fget.c:348 #3 0x00002b3947c66e3b in __bam_search (dbc=0x2b3947aee400, root_pgno=101187584, key=0x414fc310, flags=1409, stop=1, recnop=0x0, exactp=0x414fc224) at ../dist/../btree/bt_search.c:307 #4 0x00002b3947c5bc75 in __bam_c_search (dbc=0x2b3947aee400, root_pgno=0, key=0x414fc310, flags=28, exactp=0x414fc224) at ../dist/../btree/bt_cursor.c:2547 #5 0x00002b3947c5cc86 in __bam_c_get (dbc=0x2b3947aee400, key=0x414fc310, data=0x414fc2f0, flags=28, pgnop=0x414fc2b4) at ../dist/../btree/bt_cursor.c:962 #6 0x00002b3947ca74f0 in __db_c_get (dbc_arg=0x2b3947aee740, key=0x414fc310, data=0x414fc2f0, flags=28) at ../dist/../db/db_cam.c:643 #7 0x00002b3947b1b92e in hdb_id2entry (be=Variable "be" is not available. ) at id2entry.c:125 #8 0x00002b3947b20911 in hdb_cache_find_id (op=0x4167cd30, tid=0x0, id=376099, eip=0x4167c890, islocked=1, locker=26, lock=0x4167c820) at cache.c:760 #9 0x00002b3947b14034 in hdb_search (op=0x4167cd30, rs=0x4167cf00) at search.c:695 #10 0x0000000000477c6b in overlay_op_walk (op=0x4167cd30, rs=0x4167cf00, which=op_search, oi=0x2b39479ca530, on=0x0) at backover.c:508 #11 0x0000000000477fc5 in over_op_func (op=0x4167cd30, rs=0x4167cf00, which=op_search) at backover.c:560 #12 0x00002b394802c336 in dynlist_response (op=0x2aaaab0e03c8, rs=0x417feee0) at dynlist.c:463 #13 0x0000000000477afa in over_back_response (op=0x2aaaab0e03c8, rs=0x417feee0) at backover.c:236 #14 0x0000000000434eea in slap_send_search_entry (op=0x2aaaab0e03c8, rs=0x417feee0) at result.c:717 #15 0x00002b3947b14714 in hdb_search (op=0x2aaaab0e03c8, rs=0x417feee0) at search.c:878 #16 0x0000000000477c6b in overlay_op_walk (op=0x2aaaab0e03c8, rs=0x417feee0, which=op_search, oi=0x2b39479ca530, on=0x0) at backover.c:508 #17 0x0000000000477fc5 in over_op_func (op=0x2aaaab0e03c8, rs=0x417feee0, which=op_search) at backover.c:560 #18 0x00000000004293d2 in fe_op_search (op=0x2aaaab0e03c8, rs=0x417feee0) at search.c:355 #19 0x0000000000429c12 in do_search (op=0x2aaaab0e03c8, rs=0x417feee0) at search.c:217 #20 0x00000000004278b9 in connection_operation (ctx=dwarf2_read_address: Corrupted DWARF expression. ) at connection.c:1132 #21 0x0000000000427ca6 in connection_read_thread (ctx=0x417ff030, argv=Variable "argv" is not available. ) at connection.c:1260 #22 0x00002b3945688794 in ldap_int_thread_pool_wrapper (xpool=0x2b3946ee0080) at tpool.c:478 -- Quanah Gibson-Mount Principal Software Developer ITS/Shared Application Services Stanford University GnuPG Public Key: http://www.stanford.edu/~quanah/pgp.html

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Re: (ITS#4804) slapd shutdown hang
by Kurt＠OpenLDAP.org 11 Jan '07

11 Jan '07

At 10:13 AM 1/11/2007, kurt(a)OpenLDAP.org wrote: >Full_Name: Kurt Zeilenga >Version: HEAD >OS: FreeBSD 4 >URL: ftp://ftp.openldap.org/incoming/ >Submission from: (NULL) (71.80.218.136) > > >In current HEAD (as well as for the last couple of days), slapd(8) has been >consistently (every time) been hanging on shutdown. For instance, when running >test000, gdb shows: >> thread apply all bt >Thread 2 (process 71085, thread 2): >#0 0x28fc0197 in _thread_kern_sched () from /usr/lib/libc_r.so.4 >#1 0x28fc09e5 in _thread_kern_sched_state_unlock () from /usr/lib/libc_r.so.4 >#2 0x28fc296d in pthread_cond_timedwait () from /usr/lib/libc_r.so.4 >#3 0x28fa959b in _thread_gc () from /usr/lib/libc_r.so.4 >#4 0x28f824d8 in _thread_start () from /usr/lib/libc_r.so.4 >#5 0x0 in ?? () > >Thread 1 (process 71085, thread 1): >#0 0x28fc1914 in __sys_poll () from /usr/lib/libc_r.so.4 >#1 0x28fc0df9 in _thread_kern_sched_state_unlock () from /usr/lib/libc_r.so.4 >#2 0x28fc07ae in _thread_kern_scheduler () from /usr/lib/libc_r.so.4 >#3 0x0 in ?? () > >The last few log messages are: >daemon: shutdown requested and initiated. >slapd shutdown: waiting for 0 threads to terminate >slapd shutdown: initiated >====> bdb_cache_release_all >slapd destroy: freeing system resources. > >I suspect a recent (in the last week or so) is the cause... I complete rebuild seems have cured this problem. Kurt

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