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Bug 918705

Summary:	[RFE] allow turning off vattr lookup in search entry return
Product:	Red Hat Enterprise Linux 7	Reporter:	Nathan Kinder <nkinder>
Component:	389-ds-base	Assignee:	Rich Megginson <rmeggins>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Sankar Ramalingam <sramling>
Severity:	unspecified	Docs Contact:
Priority:	medium
Version:	7.0	CC:	amsharma, jgalipea, mreynolds, nhosoi, nkinder
Target Milestone:	rc	Keywords:	FutureFeature
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	389-ds-base-1.3.1.2-1.el7	Doc Type:	Enhancement
Doc Text:	Cause: Improving search performance. Consequence: Poor search performance. Change: All searches are checked for the presence of virtual attributes. This impacts performance. If virtual attributer are not being used, then this virutal attribute lookup can be disabled Result: If virtual attribute lookups are disabled, search performance improves.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2014-06-13 12:20:10 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Nathan Kinder 2013-03-06 18:15:26 UTC

This bug is created as a clone of upstream ticket:
https://fedorahosted.org/389/ticket/511

systemtap and callgrind analysis show a lot of time spent in vattr_map_namespace_sp_getlist and slapi_vattr_namespace_values_get_sp - every time a search entry is compared against a search filter, and then again when the entry is sent to the client, to see if there are any virtual attributes to add - if a user does not want or care about virtual attributes at all, there should be a way to turn off this vattr checking using a config attribute

Comment 1 Rich Megginson 2013-10-01 23:24:19 UTC

moving all ON_QA bugs to MODIFIED in order to add them to the errata (can't add bugs in the ON_QA state to an errata).  When the errata is created, the bugs should be automatically moved back to ON_QA.

Comment 5 Jenny Severance 2014-02-20 17:04:39 UTC

There is a way to turn off vattr checking now ... please add steps to do this and indicate how to verify.

Comment 6 mreynolds 2014-02-20 17:12:21 UTC

(In reply to Jenny Galipeau from comment #5)
> There is a way to turn off vattr checking now ... please add steps to do
> this and indicate how to verify.

nsslapd-ignore-virtual-attrs: on|off

Setting:

ldapmodify -D "cn=directory manager" -w password
dn: cn=config
changetype: modify
replace: nsslapd-ignore-virtual-attrs
nsslapd-ignore-virtual-attrs: on


Checking:

ldapsearch -D "cn=directory manager" -w password -b cn=config -s base objectlcass=top dn nsslapd-ignore-virtual-attrs

If the attribute is not present, then the default is off.  Otherwise the value is as indicated in the attribute value.

Comment 7 Amita Sharma 2014-02-21 09:03:08 UTC

[root@dhcp201-149 ~]# ldapsearch -x -h localhost -D "cn=Directory Manager" -w Secret123 -p 389 -b cn=config | grep -i "nsslapd-ignore-virtual-attrs"
nsslapd-ignore-virtual-attrs: off

[root@dhcp201-149 ~]# ldapmodify -x -h localhost -D "cn=Directory Manager" -w Secret123 -p 389 << EOF
dn: cn=config
changetype: modify
replace: nsslapd-ignore-virtual-attrs
nsslapd-ignore-virtual-attrs: on 
EOF

modifying entry "cn=config"

[root@dhcp201-149 ~]# ldapsearch -x -h localhost -D "cn=Directory Manager" -w Secret123 -p 389 -b cn=config | grep -i "nsslapd-ignore-virtual-attrs"
nsslapd-ignore-virtual-attrs: on

Marking bug as VERIFIED, Sanity Only.

Comment 8 Ludek Smid 2014-06-13 12:20:10 UTC

This request was resolved in Red Hat Enterprise Linux 7.0.

Contact your manager or support representative in case you have further questions about the request.