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Bug 2112998

Summary: performance search rate: checking if an entry is a referral is expensive
Product: Red Hat Enterprise Linux 9 Reporter: mreynolds
Component: 389-ds-baseAssignee: mreynolds
Status: CLOSED ERRATA QA Contact: LDAP QA Team <idm-ds-qe-bugs>
Severity: high Docs Contact:
Priority: unspecified    
Version: 9.1CC: aadhikar, bsmejkal, idm-ds-dev-bugs, pasik
Target Milestone: rcKeywords: Triaged
Target Release: 9.2Flags: pm-rhel: mirror+
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: sync-to-jira
Fixed In Version: 389-ds-base-2.2.4-3.el9 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2023-05-09 07:41:32 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:

Description mreynolds 2022-08-01 16:27:09 UTC
Description of problem:

During search rate, the server checks that the base search is not a referral (attribute 'ref').
Most of the time this check is useless as the base entry is not a referral. The checking of the entry is expensive. Improving this tests improves searchrate by 5%

(gdb) where
0  0x00007f46038ac470 in attrlist_find 
1  0x00007f46038c6046 in slapi_entry_attr_find 
2  0x00007f45f599f97e in check_entry_for_referral 
    at ldap/servers/slapd/back-ldbm/findentry.c:35
3  0x00007f45f599fe5f in find_entry_internal_dn 
4  0x00007f45f599fe5f in find_entry_internal 
    at ldap/servers/slapd/back-ldbm/findentry.c:322
5  0x00007f45f599fe5f in find_entry_internal 
    at ldap/servers/slapd/back-ldbm/findentry.c:302
6  0x00007f45f59a02bf in find_entry 
7  0x00007f45f59d05b4 in ldbm_back_search 
8  0x00007f46038fec2b in op_shared_search 
9  0x000055a1fe0278f3 in do_search 
10 0x000055a1fe01525d in connection_dispatch_operation 
11 0x000055a1fe01525d in connection_threadmain 
12 0x00007f460123e568 in _pt_root 
13 0x00007f4600bd8322 in start_thread 
14 0x00007f4600367823 in clone 

0

Comment 1 mreynolds 2022-08-01 16:28:56 UTC
Upstream ticket:

https://github.com/389ds/389-ds-base/issues/4308

Comment 7 bsmejkal 2023-02-20 12:18:54 UTC
As per comment #c5 marking as VERIFIED.

Comment 9 errata-xmlrpc 2023-05-09 07:41:32 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 (389-ds-base 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-2023:2274