Bug 41665 – Improve performance of Samba SAMR GetGroupsForUser call

Bug 41665 - Improve performance of Samba SAMR GetGroupsForUser call


Summary:	Improve performance of Samba SAMR GetGroupsForUser call

Status:	CLOSED DUPLICATE of bug 41551

Product:	UCS
Classification:	Unclassified
Component:	Samba4
Version:	UCS 4.1
Hardware:	Other Linux

Importance:	P5 normal (vote)
Target Milestone:	UCS 4.1-2-errata
Assigned To:	Arvid Requate
QA Contact:	Stefan Gohmann

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Reported:	2016-06-27 13:24 CEST by Arvid Requate
Modified:	2016-07-14 16:55 CEST (History)
CC List:	2 users (show)

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Bug group (optional):	Troubleshooting, UCS Performance
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Flags:	requate: Patch_Available+

Attachments
0001-s4-samr-Rework-GetGroupsForUser-to-use-memberOf.patch (4.98 KB, patch) 2016-06-27 13:24 CEST, Arvid Requate	Details \| Diff
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Description Arvid Requate

2016-06-27 13:24:47 CEST

Created attachment 7768 [details]
0001-s4-samr-Rework-GetGroupsForUser-to-use-memberOf.patch

Ticket#: 2015110921000315

The attached patch aims to improve the performance of the Samba SAMR GetGroupsForUser call.

In the case of the ticket, the Samba rpc_server consumed 100% of a CPU core for most of the time while a couple of smbd connections where running. Finally it turned out that a bunch of Solaris clients without winbind apparently constantly hit the two Samba/AD DCs.

The patch makes Samba use the memberOf attribute which sound like the right thing to do.

Comment 1 Arvid Requate

2016-06-27 13:25:59 CEST


*** This bug has been marked as a duplicate of bug 41551 ***

Comment 2 Stefan Gohmann

2016-07-08 15:04:53 CEST

OK, duplicate.