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Bug 889210 - RFE: stop using in-memory hash tables for netgroups and autofs maps
Summary: RFE: stop using in-memory hash tables for netgroups and autofs maps
Keywords:
Status: CLOSED NOTABUG
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: sssd
Version: 7.0
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: rc
: ---
Assignee: Jakub Hrozek
QA Contact: Kaushik Banerjee
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2012-12-20 14:06 UTC by Dmitri Pal
Modified: 2020-05-04 10:34 UTC (History)
3 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2012-12-20 14:08:05 UTC
Target Upstream Version:
Embargoed:


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System ID Private Priority Status Summary Last Updated
Github SSSD sssd issues 2762 0 None None None 2020-05-04 10:34:27 UTC

Description Dmitri Pal 2012-12-20 14:06:29 UTC
This bug is created as a clone of upstream ticket:
https://fedorahosted.org/sssd/ticket/1720

We're using hash tables kept in-memory for processing netgroups and autofs maps. The primary reason for using them is that ldb doesn't guarantee ordering of results. The current tdb back end does, but if we switched to a different one, we'd be in trouble.

For both autofs and netgroups the API looks conceptually like this:
{{{
set_entry(name);
do {
  value = get_entry(name);
} while(value);
end_entry(name);
}}}

If we could retain the ordering of the results without the hash table, we would get rid of a lot of complexity and maybe even potential race conditions.


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