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Bug 1967906

Summary: Dirsrv memory leak
Product: Red Hat Enterprise Linux 8 Reporter: Aleksandr Sharov <asharov>
Component: slapi-nisAssignee: Alexander Bokovoy <abokovoy>
Status: CLOSED ERRATA QA Contact: ipa-qe <ipa-qe>
Severity: high Docs Contact:
Priority: high    
Version: 8.4CC: abokovoy, amore, ekeck, ldap-maint, lmiksik, mreynolds, msauton, sgouvern, ssidhaye, tmihinto, tscherf, vashirov
Target Milestone: rcKeywords: Triaged, ZStream
Target Release: ---Flags: pm-rhel: mirror+
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: slapi-nis-0.56.6-4.el8 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of:
: 2000919 2003607 (view as bug list) Environment:
Last Closed: 2021-11-09 18:29:22 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 2000919, 2003607    
Attachments:
Description Flags
lg_prof_sample:0 test none

Description Aleksandr Sharov 2021-06-04 11:07:43 UTC 
Created attachment 1788961 [details]
lg_prof_sample:0 test

Description of problem:
FreIPA nsslapd eats a lot of memory, forcing client to restart services in a weeks time

Version-Release number of selected component (if applicable):
389-ds-base-1.4.3.16-13.module+el8.4.0+10307+74bbfb4e.x86_64 Thu May 27 10:25:43 2021
389-ds-base-debuginfo-1.4.3.16-13.module+el8.4.0+10307+74bbfb4e.x86_64 Fri May 28 12:47:49 2021
389-ds-base-debugsource-1.4.3.16-13.module+el8.4.0+10307+74bbfb4e.x86_64 Fri May 28 12:47:49 2021
389-ds-base-libs-1.4.3.16-13.module+el8.4.0+10307+74bbfb4e.x86_64 Thu May 27 10:25:40 2021
python3-lib389-1.4.3.16-13.module+el8.4.0+10307+74bbfb4e.noarch Thu May 27 10:25:42 2021


How reproducible:
?

Actual results:
jemalloc used by client for testing shows significant leak:

May 28 22:33:18 cobalion2.hpc.ugent.be systemd[1]: Started 389 Directory Server HPC-UGENT-BE..
May 28 22:35:48 cobalion2.hpc.ugent.be systemd[1]: Stopping 389 Directory Server HPC-UGENT-BE....
May 28 22:35:48 cobalion2.hpc.ugent.be ns-slapd[1230648]: [28/May/2021:22:35:48.606188947 +0200] - INFO - op_thread_cleanup - slapd shutting down - signaling operation >
May 28 22:35:48 cobalion2.hpc.ugent.be ns-slapd[1230648]: [28/May/2021:22:35:48.664904122 +0200] - INFO - slapd_daemon - slapd shutting down - closing down internal sub>
May 28 22:37:37 cobalion2.hpc.ugent.be ns-slapd[1230648]: [28/May/2021:22:37:37.544145832 +0200] - INFO - bdb_pre_close - Waiting for 4 database threads to stop
May 28 22:37:38 cobalion2.hpc.ugent.be ns-slapd[1230648]: [28/May/2021:22:37:38.465322383 +0200] - INFO - bdb_pre_close - All database threads now stopped
May 28 22:40:30 cobalion2.hpc.ugent.be ns-slapd[1230648]: [28/May/2021:22:40:30.640184021 +0200] - INFO - ldbm_back_instance_set_destructor - Set of instances destroyed
May 28 22:40:32 cobalion2.hpc.ugent.be ns-slapd[1230648]: [28/May/2021:22:40:32.759587645 +0200] - INFO - connection_post_shutdown_cleanup - slapd shutting down - freed>
May 28 22:40:32 cobalion2.hpc.ugent.be ns-slapd[1230648]: [28/May/2021:22:40:32.762560402 +0200] - INFO - main - slapd stopped.
May 28 22:40:34 cobalion2.hpc.ugent.be ns-slapd[1230648]: <jemalloc>: Leak approximation summary: ~5303264 bytes, ~43932 objects, >= 2082 contexts
May 28 22:40:34 cobalion2.hpc.ugent.be ns-slapd[1230648]: <jemalloc>: Run jeprof on "jeprof.1230648.0.f.heap" for leak detail
May 28 22:40:34 cobalion2.hpc.ugent.be systemd[1]: dirsrv: Succeeded.
May 28 22:40:34 cobalion2.hpc.ugent.be systemd[1]: Stopped 389 Directory Server HPC-UGENT-BE..

Expected results:
no memory leak

Additional info:
lg_prof_sample:0 test attached with replication logging enabled

client contacted with Victor Ashirov upstream as well
Comment 9 Marc Sauton 2021-08-21 12:18:08 UTC 
*** Bug 1990192 has been marked as a duplicate of this bug. ***
Comment 30 anuja 2021-09-23 10:37:03 UTC 
Verified using nightly compose:
http://download.devel.redhat.com/rhel-8/nightly/RHEL-8/latest-RHEL-8.5/compose/

[root@master ~]# hostname
master.ipa85.test
[root@master ~]# setenforce 0
[root@master ~]# echo Secret123 | kinit admin
Password for admin: 
[root@master ~]# tail /usr/lib/systemd/system/dirsrv@.service.d/custom.conf

# Preload jemalloc
Environment=LD_PRELOAD=/usr/lib64/dirsrv/lib/libjemalloc.so.2
TimeoutStartSec=3600
TimeoutStopSec=3600
Environment=
ExecStartPre=
Environment=LD_PRELOAD=/usr/lib64/libasan.so.5
Environment=ASAN_OPTIONS=log_path=/run/dirsrv/ns-slapd-%i.asan:print_stacktrace=1:detect_leaks=1:exit_code=0:fast_unwind_on_malloc=0

[root@master ~]# grep backend_search_cb /run/dirsrv/ns-slapd*asan*
grep: /run/dirsrv/ns-slapd*asan*: No such file or directory
[root@master ~]# ls /run/dirsrv/ns-slapd
ls: cannot access '/run/dirsrv/ns-slapd': No such file or directory
[root@master ~]# setenforce 0
[root@master ~]# systemctl start dirsrv@IPA85-TEST
[root@master ~]# ldapsearch -LLL -b cn=config '(objectClass=*)'
SASL/GSSAPI authentication started
SASL username: admin
SASL SSF: 256
SASL data security layer installed.
dn: cn=tasks,cn=config
...
...

dn: cn=uniquemember,cn=default indexes,cn=config,cn=ldbm database,cn=plugins,c
 n=config
cn: uniquemember
objectClass: top
objectClass: nsIndex

[root@master ~]# systemctl stop dirsrv@IPA85-TEST

[root@master ~]# ls /run/dirsrv/ns-slapd-IPA85-TEST.asan.28*
/run/dirsrv/ns-slapd-IPA85-TEST.asan.28274  /run/dirsrv/ns-slapd-IPA85-TEST.asan.28442
[root@master ~]# grep -rnw "backend_search_cb" /run/dirsrv/ns-slapd*
[root@master ~]# echo $?
1
[root@master ~]# date
Thu Sep 23 06:28:01 EDT 2021
[root@master ~]# 
[root@master ~]# rpm -qa ipa-server slapi-nis
slapi-nis-0.56.6-4.module+el8.5.0+12583+bf7ffcf6.x86_64
ipa-server-4.9.6-6.module+el8.5.0+12660+88e16a2c.x86_64
[root@master ~]# 

No backend search requested in logs.
Based on this marking bug as verified.
Comment 32 errata-xmlrpc 2021-11-09 18:29:22 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (ipa bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2021:4230