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Description of problem: At the moment, the SSSD performance, especially with the default settings is not great and users have to resort to workarounds like ignore_group_members or mounting the cache to tmpfs. The purpose of this bugzilla is to track improvements we can do to make sure less data is transferred over network and the cache writes are handled better. Other related bugzillas might be filed later for e.g. PAC responder improvements. Version-Release number of selected component (if applicable): 1.13 How reproducible: always Steps to Reproduce: 1. run "id aduser" for an AD user who is a member of hundreds of large groups 2. 3. Actual results: id takes 10+ seconds Expected results: id should be faster Additional info:
Upstream ticket: https://fedorahosted.org/sssd/ticket/2602
Patches pushed upstream: beec1ee5799570f34a51ea57674c7291c15f7022 b8946a5dbde01a87465de707092716349a35248b d36f4db9bb5efc63b94190cca25adb08ee56971c 3bd9da80f71a6794af0a6b3fbc11bc3a2da64638 4016c7dd288d379118b47ecbe7d8f46cfcb0d400 40de79d69860ec7f04bf7795bd88b641ec42fd23 a257259b05d62ebe548b6c798a3aa03a97dbc0c2 dd285415d7a8d8376207960cfa3e977524c3b98c 13d7df10bf4d76c333a9169f9fcbeb891d870351 f983b400bf4f6fb14a2174d6f58071e06e9ec832 f21b3cce14055e77af8ccb98dd8e0fa1ec1f7944 72dbcd0a3361f1c0f0c3e348aa2fbcabd926188b e732d23f3ec986a463d757781a334040e03d1f59 6e9d7cbe43fdfc866b18f9ef0779bbfc10ad6f3a
Hi Marc, I wonder if the upstream design page: https://fedorahosted.org/sssd/wiki/DesignDocs/OneFourteenPerformanceImprovements would give some idea?
Verified the bug on SSSD Version: sssd-1.14.0-30.el7.x86_64 This feature has been tested thoroughly and a detailed Test plan sent to DEV for review. The main sysdb cache and timestamp cache features of this RFE are functional and working fine.
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. https://rhn.redhat.com/errata/RHEA-2016-2476.html