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Re: (ITS#7433) OpenLDAP 2.4.32 - possible memory leak at high load
by quanah＠zimbra.com 06 Nov '12

06 Nov '12

--On Tuesday, November 06, 2012 5:36 PM +0000 vb4607(a)att.com wrote: > Full_Name: Venkatesh Baglodi > Version: 2.4.32 > OS: Red Hat Enterprise Linux Server release 5.5 > URL: ftp://ftp.openldap.org/incoming/ > Submission from: (NULL) (139.76.64.65) > > > We have been facing frequent memory utilization issues with OpenLDAP > 2.4.32 in our production environment (multi-master mode, 6 servers), > which requires OpenLDAP server instances to be restarted almost every > week. Utilization starts at a lower percentage to start with (2-3%), but > then gradually moves up and never comes down. We have been using OpenLDAP > 2.4.32 with hdb backend (BerkelyDB v5.3.21) on Red Hat Enterprise Linux > Server release 5.5 (Tikanga). Are there any known issues with this > version? Are you using the default glibc malloc, instead of tcmalloc? That would be a common mistake that results in this sort of behavior. --Quanah -- Quanah Gibson-Mount Sr. Member of Technical Staff Zimbra, Inc A Division of VMware, Inc. -------------------- Zimbra :: the leader in open source messaging and collaboration

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(ITS#7433) OpenLDAP 2.4.32 - possible memory leak at high load
by vb4607＠att.com 06 Nov '12

06 Nov '12

Full_Name: Venkatesh Baglodi Version: 2.4.32 OS: Red Hat Enterprise Linux Server release 5.5 URL: ftp://ftp.openldap.org/incoming/ Submission from: (NULL) (139.76.64.65) We have been facing frequent memory utilization issues with OpenLDAP 2.4.32 in our production environment (multi-master mode, 6 servers), which requires OpenLDAP server instances to be restarted almost every week. Utilization starts at a lower percentage to start with (2-3%), but then gradually moves up and never comes down. We have been using OpenLDAP 2.4.32 with hdb backend (BerkelyDB v5.3.21) on Red Hat Enterprise Linux Server release 5.5 (Tikanga). Are there any known issues with this version?

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Re: (ITS#7432) slapd crashes when removing members from a large group
by hyc＠symas.com 05 Nov '12

05 Nov '12

marvin.mundry(a)uni-hamburg.de wrote: > Full_Name: Marvin Mundry > Version: 2.4.33 > OS: Ubuntu 12.10 > URL: https://idmswiki.rrz.uni-hamburg.de:8005/debug.tar.bz > Submission from: (NULL) (134.100.2.183) > Thanks for the report. The crash has been fixed in git, but your test runs into another (known) issue in MDB. You're working with a very large entry, which libmdb stores in overflow pages. In the current version of libmdb, freespace management for overflow pages is not fully implemented, so every time you update the entry libmdb will always use new pages (instead of reusing old pages). Thus, after a few hundred operations, your 1GB map will be exhausted. It looks like you won't be able to use back-mdb until this feature is fully implemented in libmdb. > i have slapcat'ed my production environment and slapadded it into an back_mdb > database. > > when deleting members one by one from a large group (48428 Members), after some > transactions slapd crashes. > when i slapadd my dit to an mdb without having an eq index configured for > "member" the removal of members works fine. > > when doing the same thing (member indexed, slapadding members, starting slapd, > removing group members one by one) on a hdb, slapd does not crash. > > sortvals is set for members as otherwise deletion operations would take a very > long time > > i failed to reproduce the problem without initially slapadding the data from my > production environment into the mdb. > > i have removed all configuration settings not neccessary to reproduce the bug > > the debug.tar.bz should contain everything that is neccessary (including a > description) to reproduce the problem. additionally the file contains a coredump > and the full trace output > > slapd.conf: > include /usr/local/etc/openldap/schema/core.schema > include /usr/local/etc/openldap/schema/cosine.schema > include /usr/local/etc/openldap/schema/inetorgperson.schema > include /usr/local/etc/openldap/schema/rfc2307bis.schema > pidfile /usr/local/var/run/slapd.pid > argsfile /usr/local/var/run/slapd.args > modulepath /usr/local/libexec/openldap > moduleload back_mdb.la > sortvals member > database mdb > suffix "dc=test,dc=com" > rootdn "cn=admin,dc=test,dc=com" > rootpw secret > directory /usr/local/etc/openldap/test123db/AL > index member eq > maxsize 1000000000 > > > last lines of slapd -d Trace: > 5096b5ae oc_check_allowed type "modifyTimestamp" > 5096b5ae sl_malloc 8: ch_malloc #this line repeats 28450 times > 5096b5ae => mdb_entry_encode(0x00010170): cn=gr97503,ou=groups,dc=test,dc=com > 5096b5ae <= mdb_entry_encode(0x00010170): cn=gr97503,ou=groups,dc=test,dc=com > > build options: > CFLAGS=-O0 -d > ./configure --enable-dynamic=yes --enable-syslog=yes --enable-slapd=yes > --enable-dynacl=yes --enable-crypt=yes --enable-modules=yes --enable-rewrite=ye > s --enable-bdb=mod --enable-hdb=mod --enable-ldap=mod --enable-mdb=mod > --enable-meta=mod --enable-monitor=mod --enable-overlays=mod --with-tls=openssl > > --enable-debug > > (gdb) bt: > #0 0x000002fc000002fa in ?? () > #1 0x000002ff000002fd in ?? () > #2 0x0000030200000300 in ?? () > #3 0x0000030500000303 in ?? () > #4 0x0000030800000306 in ?? () > #5 0x0000030b00000309 in ?? () > #6 0x00007f1400000312 in ?? () > #7 0x0000009cffffffbf in ?? () > #8 0x00007f1400000011 in ?? () > #9 0x00000000000102a3 in ?? () > #10 0x00007f140c101880 in ?? () > #11 0x00007f140883c200 in ?? () > #12 0x0000000000000891 in ?? () > #13 0x00007f14155ef060 in ?? () > #14 0x00007f14523dd5a6 in ?? () > #15 0x00007f1451fa1010 in ?? () > #16 0x00000000523dd2a7 in ?? () > #17 0x00007f14155ef390 in ?? () > #18 0x0000000000000000 in ?? () > > -- -- Howard Chu CTO, 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#7431) seg fault in constraint_check_restrict at constraint.c:713
by jsynacek＠redhat.com 05 Nov '12

05 Nov '12

On 11/04/2012 05:33 PM, michael(a)stroeder.com wrote: > Full_Name: > Version: RE24 8f66d7dbad977c9186e010a52f0183b5d532acc9 > OS: openSUSE 12.2 x86_64 > URL: > Submission from: (NULL) (79.227.185.139) > > > I get a seg fault when adding group entries with some regex-constrained > attributes. This is RE24 with the recent fixes for slapo-constraint. The > constraint setup works with 2.4.31. > > Strange thing is that the entry is added to the database. So it seems to me that > the seg fault happens after that while checking constraints for what > slapo-memberof does? > > As often this is a complex customer setup. So it's not that easy to narrow down > the config and strip aways private customer data in a full traceback. I will do > if really necessary. > > Maybe this gives a first hint where to look: > > No symbol "info" in current context. > (gdb) info threads > Id Target Id Frame > 8 Thread 0x7faed2024700 (LWP 25001) 0x00007faee54448f4 in > pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 > 7 Thread 0x7faed1823700 (LWP 25002) 0x00007faee54448f4 in > pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 > 6 Thread 0x7faed2825700 (LWP 25000) 0x00007faee54448f4 in > pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 > 5 Thread 0x7faed8d6a700 (LWP 24999) 0x00007faee54448f4 in > pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 > 4 Thread 0x7faedc62d700 (LWP 24998) 0x00007faee44ce8a3 in epoll_wait () > from /lib64/libc.so.6 > 3 Thread 0x7faee41d2700 (LWP 24995) 0x00007faee5441fef in pthread_join () > from /lib64/libpthread.so.0 > 2 Thread 0x7faed1022700 (LWP 25003) 0x00007faee54448f4 in > pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 > * 1 Thread 0x7faecbfff700 (LWP 25004) 0x00007faedfeccf89 in > constraint_check_restrict (op=0x7faecbffdd80, c=0xf8c550, e=0x0) at > constraint.c:713 > Hello Michael, can you please provide a full backtrace of thread 1? A quick look suggest that there's something wrong, because constraint_check_restrict probably should not be called with e=0x0, but I'm unable to tell anything else with such restricted information. Also, if the problem is in my fix, it should be fairly easily reproducible with just a few slapadds with the right data. Cheers, -- Jan Synacek Software Engineer, BaseOS team Brno, Red Hat

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(ITS#7432) slapd crashes when removing members from a large group
by marvin.mundry＠uni-hamburg.de 05 Nov '12

05 Nov '12

Full_Name: Marvin Mundry Version: 2.4.33 OS: Ubuntu 12.10 URL: https://idmswiki.rrz.uni-hamburg.de:8005/debug.tar.bz Submission from: (NULL) (134.100.2.183) i have slapcat'ed my production environment and slapadded it into an back_mdb database. when deleting members one by one from a large group (48428 Members), after some transactions slapd crashes. when i slapadd my dit to an mdb without having an eq index configured for "member" the removal of members works fine. when doing the same thing (member indexed, slapadding members, starting slapd, removing group members one by one) on a hdb, slapd does not crash. sortvals is set for members as otherwise deletion operations would take a very long time i failed to reproduce the problem without initially slapadding the data from my production environment into the mdb. i have removed all configuration settings not neccessary to reproduce the bug the debug.tar.bz should contain everything that is neccessary (including a description) to reproduce the problem. additionally the file contains a coredump and the full trace output slapd.conf: include /usr/local/etc/openldap/schema/core.schema include /usr/local/etc/openldap/schema/cosine.schema include /usr/local/etc/openldap/schema/inetorgperson.schema include /usr/local/etc/openldap/schema/rfc2307bis.schema pidfile /usr/local/var/run/slapd.pid argsfile /usr/local/var/run/slapd.args modulepath /usr/local/libexec/openldap moduleload back_mdb.la sortvals member database mdb suffix "dc=test,dc=com" rootdn "cn=admin,dc=test,dc=com" rootpw secret directory /usr/local/etc/openldap/test123db/AL index member eq maxsize 1000000000 last lines of slapd -d Trace: 5096b5ae oc_check_allowed type "modifyTimestamp" 5096b5ae sl_malloc 8: ch_malloc #this line repeats 28450 times 5096b5ae => mdb_entry_encode(0x00010170): cn=gr97503,ou=groups,dc=test,dc=com 5096b5ae <= mdb_entry_encode(0x00010170): cn=gr97503,ou=groups,dc=test,dc=com build options: CFLAGS=-O0 -d ./configure --enable-dynamic=yes --enable-syslog=yes --enable-slapd=yes --enable-dynacl=yes --enable-crypt=yes --enable-modules=yes --enable-rewrite=ye s --enable-bdb=mod --enable-hdb=mod --enable-ldap=mod --enable-mdb=mod --enable-meta=mod --enable-monitor=mod --enable-overlays=mod --with-tls=openssl --enable-debug (gdb) bt: #0 0x000002fc000002fa in ?? () #1 0x000002ff000002fd in ?? () #2 0x0000030200000300 in ?? () #3 0x0000030500000303 in ?? () #4 0x0000030800000306 in ?? () #5 0x0000030b00000309 in ?? () #6 0x00007f1400000312 in ?? () #7 0x0000009cffffffbf in ?? () #8 0x00007f1400000011 in ?? () #9 0x00000000000102a3 in ?? () #10 0x00007f140c101880 in ?? () #11 0x00007f140883c200 in ?? () #12 0x0000000000000891 in ?? () #13 0x00007f14155ef060 in ?? () #14 0x00007f14523dd5a6 in ?? () #15 0x00007f1451fa1010 in ?? () #16 0x00000000523dd2a7 in ?? () #17 0x00007f14155ef390 in ?? () #18 0x0000000000000000 in ?? ()

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Re: (ITS#7418) slapo-constraint are broken
by michael＠stroeder.com 04 Nov '12

04 Nov '12

This is a cryptographically signed message in MIME format. --------------ms020504060001080007040306 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable The recent fix for ITS#7418 might have caused another regression causing = a seg fault. 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Re: (ITS#7431) seg fault in constraint_check_restrict at constraint.c:713
by michael＠stroeder.com 04 Nov '12

04 Nov '12

It also works when using constraint.c of OpenLDAP release 2.4.33. Maybe it's caused by fix for ITS#7418?

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Re: (ITS#7431) seg fault in constraint_check_restrict at constraint.c:713
by michael＠stroeder.com 04 Nov '12

04 Nov '12

It works when using constraint.c of OpenLDAP release 2.4.32.

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(ITS#7431) seg fault in constraint_check_restrict at constraint.c:713
by michael＠stroeder.com 04 Nov '12

04 Nov '12

Full_Name: Version: RE24 8f66d7dbad977c9186e010a52f0183b5d532acc9 OS: openSUSE 12.2 x86_64 URL: Submission from: (NULL) (79.227.185.139) I get a seg fault when adding group entries with some regex-constrained attributes. This is RE24 with the recent fixes for slapo-constraint. The constraint setup works with 2.4.31. Strange thing is that the entry is added to the database. So it seems to me that the seg fault happens after that while checking constraints for what slapo-memberof does? As often this is a complex customer setup. So it's not that easy to narrow down the config and strip aways private customer data in a full traceback. I will do if really necessary. Maybe this gives a first hint where to look: No symbol "info" in current context. (gdb) info threads Id Target Id Frame 8 Thread 0x7faed2024700 (LWP 25001) 0x00007faee54448f4 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 7 Thread 0x7faed1823700 (LWP 25002) 0x00007faee54448f4 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 6 Thread 0x7faed2825700 (LWP 25000) 0x00007faee54448f4 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 5 Thread 0x7faed8d6a700 (LWP 24999) 0x00007faee54448f4 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 4 Thread 0x7faedc62d700 (LWP 24998) 0x00007faee44ce8a3 in epoll_wait () from /lib64/libc.so.6 3 Thread 0x7faee41d2700 (LWP 24995) 0x00007faee5441fef in pthread_join () from /lib64/libpthread.so.0 2 Thread 0x7faed1022700 (LWP 25003) 0x00007faee54448f4 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 * 1 Thread 0x7faecbfff700 (LWP 25004) 0x00007faedfeccf89 in constraint_check_restrict (op=0x7faecbffdd80, c=0xf8c550, e=0x0) at constraint.c:713

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(ITS#7430) building with gnutls-3.0.x fails
by travisghansen＠yahoo.com 03 Nov '12

03 Nov '12

Full_Name: Travis Glenn Hansen Version: openldap-2.4.33 OS: gentoo ~arch URL: ftp://ftp.openldap.org/incoming/ Submission from: (NULL) (63.248.41.91) http://www.gnu.org/software/gnutls/manual/html_node/Upgrading-from-previous… It appears a handful of calls have new/updated renditions per the above link including (but not limited to) gnutls_certificate_get_x509_cas. Thanks! libtool: link: x86_64-pc-linux-gnu-gcc -march=native -O2 -pipe -D_GNU_SOURCE -Wl,-O1 -o .libs/apitest apitest.o -Wl,--as-needed ./.libs/libldap.so /var/tmp/portage/net-nds/openldap-2.4.33/work/openldap-2.4.33/libraries/liblber/.libs/liblber.so ../../libraries/liblber/.libs/liblber.so ../../libraries/liblutil/liblutil.a /usr/lib64/libsasl2.so -ldl -lgnutls -lgcrypt -lcrypt -lresolv ./.libs/libldap.so: undefined reference to `gnutls_certificate_get_x509_cas' collect2: ld returned 1 exit status make[2]: *** [ftest] Error 1 make[2]: *** Waiting for unfinished jobs.... libtool: link: x86_64-pc-linux-gnu-gcc -march=native -O2 -pipe -D_GNU_SOURCE -Wl,-O1 -o .libs/dntest dntest.o -Wl,--as-needed ./.libs/libldap.so /var/tmp/portage/net-nds/openldap-2.4.33/work/openldap-2.4.33/libraries/liblber/.libs/liblber.so ../../libraries/liblber/.libs/liblber.so ../../libraries/liblutil/liblutil.a /usr/lib64/libsasl2.so -ldl -lgnutls -lgcrypt -lcrypt -lresolv libtool: link: x86_64-pc-linux-gnu-gcc -march=native -O2 -pipe -D_GNU_SOURCE -Wl,-O1 -o .libs/urltest urltest.o -Wl,--as-needed ./.libs/libldap.so /var/tmp/portage/net-nds/openldap-2.4.33/work/openldap-2.4.33/libraries/liblber/.libs/liblber.so ../../libraries/liblber/.libs/liblber.so ../../libraries/liblutil/liblutil.a /usr/lib64/libsasl2.so -ldl -lgnutls -lgcrypt -lcrypt -lresolv ./.libs/libldap.so: undefined reference to `gnutls_certificate_get_x509_cas' collect2: ld returned 1 exit status make[2]: *** [apitest] Error 1 libtool: link: x86_64-pc-linux-gnu-gcc -march=native -O2 -pipe -D_GNU_SOURCE -Wl,-O1 -o .libs/ltest test.o -Wl,--as-needed ./.libs/libldap.so /var/tmp/portage/net-nds/openldap-2.4.33/work/openldap-2.4.33/libraries/liblber/.libs/liblber.so ../../libraries/liblber/.libs/liblber.so ../../libraries/liblutil/liblutil.a /usr/lib64/libsasl2.so -ldl -lgnutls -lgcrypt -lcrypt -lresolv ./.libs/libldap.so: undefined reference to `gnutls_certificate_get_x509_cas' collect2: ld returned 1 exit status make[2]: *** [dntest] Error 1 ./.libs/libldap.so: undefined reference to `gnutls_certificate_get_x509_cas' collect2: ld returned 1 exit status make[2]: *** [urltest] Error 1 ./.libs/libldap.so: undefined reference to `gnutls_certificate_get_x509_cas' collect2: ld returned 1 exit status make[2]: *** [ltest] Error 1 make[2]: Leaving directory `/var/tmp/portage/net-nds/openldap-2.4.33/work/openldap-2.4.33/libraries/libldap' make[1]: *** [all-common] Error 1 make[1]: Leaving directory `/var/tmp/portage/net-nds/openldap-2.4.33/work/openldap-2.4.33/libraries' make: *** [all-common] Error 1

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