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Bug 2012035 - main thread high cpu investigation / Accept Thread
Summary: main thread high cpu investigation / Accept Thread
Keywords:
Status: CLOSED NOTABUG
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: 389-ds-base
Version: 7.9
Hardware: x86_64
OS: Linux
unspecified
urgent
Target Milestone: rc
: ---
Assignee: LDAP Maintainers
QA Contact: RHDS QE
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2021-10-08 04:27 UTC by Marc Sauton
Modified: 2024-10-01 19:14 UTC (History)
8 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2022-10-26 15:44:07 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Github 389ds 389-ds-base issues 4964 0 None open START_TLS bug in accept_thread backport to 1.3.10 2021-11-03 19:44:26 UTC
Red Hat Issue Tracker IDMDS-1359 0 None None None 2021-10-08 04:37:07 UTC
Red Hat Issue Tracker RHELPLAN-99204 0 None None None 2021-10-08 04:31:10 UTC

Description Marc Sauton 2021-10-08 04:27:32 UTC 
Description of problem:

some IPA LDAP server , or RHDS LDAP instance can have the main thread using a lot of CPU resources, up to 100%

example:
31156 dirsrv 20 0 11.5g 8.7g 603384 R 1275 28.0 1519:22 ns-slapd

Thread 1 (Thread 0x7f9185c75940 (LWP 31156)):
#0 0x00007f9182d2309f in pthread_cond_signal@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1 0x00007f91833795a7 in PR_ExitMonitor () at /lib64/libnspr4.so
#2 0x000056260867aa19 in setup_pr_read_pds ()
#3 0x000056260867e131 in slapd_daemon ()

will add some "perf top" and "perf trace"


Version-Release number of selected component (if applicable):
RHEL-7.9 IPA
RHDS-10
389-ds-base-1.3.10.2-10.el7_9.x86_64

How reproducible:
N/A

Steps to Reproduce:
1. N/A
2.
3.

Actual results:
100% cpu core use

Expected results:
yes

Additional info:
several cases
Comment 21 mreynolds 2022-10-26 15:44:07 UTC 
All customer cases are closed and no evidence of DS bug at this time
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