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Bug 744197

Summary:	[RFE] close LDAP connection to the server when idle for some (configurable) time
Product:	Red Hat Enterprise Linux 6	Reporter:	Ondrej Valousek <ondrejv>
Component:	sssd	Assignee:	Stephen Gallagher <sgallagh>
Status:	CLOSED ERRATA	QA Contact:	IDM QE LIST <seceng-idm-qe-list>
Severity:	low	Docs Contact:
Priority:	unspecified
Version:	6.1	CC:	dpal, grajaiya, jgalipea, kbanerje, prc, syeghiay
Target Milestone:	rc	Keywords:	FutureFeature
Target Release:	---
Hardware:	All
OS:	All
Whiteboard:
Fixed In Version:	sssd-1.8.0-2.el6.beta2	Doc Type:	Enhancement
Doc Text:	Cause: SSSD would maintain its connection to the LDAP server as long as possible, to avoid the overhead of reconnecting. Consequence: This could cause resource-limitation issues on the server, since SSSD clients would be tying up an available file descriptor. Change: SSSD now has a configurable idle timeout, after which it will disconnect from the LDAP server until the next request is received. Result: SSSD will be a less resource-intensive client for LDAP servers.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2012-06-20 11:48:21 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:
Bug Depends On:
Bug Blocks:	736857, 756082

Description Ondrej Valousek 2011-10-07 12:59:27 UTC

sssd should possibly not keep the connection to the LDAP server indefinitely as it could render the server to run out of resources.
Instead, we should close it after some (configurable) idle time.

Comment 2 Stephen Gallagher 2011-10-07 13:23:40 UTC

Upstream ticket:
https://fedorahosted.org/sssd/ticket/1036

Comment 7 Kaushik Banerjee 2012-04-19 11:02:19 UTC

Verified in version:

# rpm -qi sssd | head
Name        : sssd                         Relocations: (not relocatable)
Version     : 1.8.0                             Vendor: Red Hat, Inc.
Release     : 22.el6                        Build Date: Mon 09 Apr 2012 07:40:33 PM IST
Install Date: Mon 16 Apr 2012 04:57:02 PM IST      Build Host: x86-003.build.bos.redhat.com
Group       : Applications/System           Source RPM: sssd-1.8.0-22.el6.src.rpm
Size        : 7870660                          License: GPLv3+
Signature   : (none)
Packager    : Red Hat, Inc. <http://bugzilla.redhat.com/bugzilla>
URL         : http://fedorahosted.org/sssd/
Summary     : System Security Services Daemon

Comment 8 Stephen Gallagher 2012-06-12 13:58:09 UTC

    Technical note added. If any revisions are required, please edit the "Technical Notes" field
    accordingly. All revisions will be proofread by the Engineering Content Services team.
    
    New Contents:
Cause: SSSD would maintain its connection to the LDAP server as long as possible, to avoid the overhead of reconnecting.

Consequence: This could cause resource-limitation issues on the server, since SSSD clients would be tying up an available file descriptor.

Change: SSSD now has a configurable idle timeout, after which it will disconnect from the LDAP server until the next request is received.

Result: SSSD will be a less resource-intensive client for LDAP servers.

Comment 10 errata-xmlrpc 2012-06-20 11:48:21 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, and where to find the updated
files, follow the link below.

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

http://rhn.redhat.com/errata/RHBA-2012-0747.html