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Bug 918705 - [RFE] allow turning off vattr lookup in search entry return
Summary: [RFE] allow turning off vattr lookup in search entry return
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: 389-ds-base
Version: 7.0
Hardware: Unspecified
OS: Unspecified
medium
unspecified
Target Milestone: rc
: ---
Assignee: Rich Megginson
QA Contact: Sankar Ramalingam
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2013-03-06 18:15 UTC by Nathan Kinder
Modified: 2020-09-13 20:19 UTC (History)
5 users (show)

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.
Clone Of:
Environment:
Last Closed: 2014-06-13 12:20:10 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Github 389ds 389-ds-base issues 511 0 None None None 2020-09-13 20:19:40 UTC

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.

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