| 2010-08-04 21:52:04 |
Daniel J Blueman |
bug |
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added bug |
| 2010-08-04 21:57:51 |
Daniel J Blueman |
attachment added |
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Debdiff to restore functionality disabled by a non-bug http://launchpadlibrarian.net/53069342/eglibc_2.12-0ubuntu6.debdiff |
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| 2010-08-04 22:01:43 |
Daniel J Blueman |
eglibc (Ubuntu): status |
New |
Fix Committed |
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| 2010-08-04 22:02:14 |
Daniel J Blueman |
bug |
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added subscriber Ubuntu Sponsors Team |
| 2010-08-04 22:02:22 |
Daniel J Blueman |
nominated for series |
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Ubuntu Maverick |
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| 2010-08-14 18:26:43 |
Benjamin Drung |
bug |
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added subscriber Benjamin Drung |
| 2010-09-25 16:02:09 |
Artur Rona |
eglibc (Ubuntu): status |
Fix Committed |
New |
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| 2010-12-08 17:48:04 |
Malte S. Stretz |
bug |
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added subscriber Malte S. Stretz |
| 2010-12-14 15:37:02 |
Scott Moser |
eglibc (Ubuntu): importance |
Undecided |
Medium |
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| 2010-12-14 15:37:02 |
Scott Moser |
eglibc (Ubuntu): status |
New |
Triaged |
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| 2010-12-21 08:48:57 |
Daniel Holbach |
bug |
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added subscriber Daniel Holbach |
| 2010-12-21 08:49:02 |
Daniel Holbach |
removed subscriber Ubuntu Sponsors Team |
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| 2010-12-21 17:32:25 |
Brian Murray |
bug |
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added subscriber Ubuntu Review Team |
| 2010-12-21 17:32:27 |
Brian Murray |
tags |
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patch |
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| 2013-01-28 02:37:52 |
Adam Conrad |
eglibc (Ubuntu): status |
Triaged |
Won't Fix |
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| 2013-01-28 02:46:53 |
Adam Conrad |
eglibc (Ubuntu): status |
Won't Fix |
In Progress |
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| 2013-01-28 03:23:16 |
Adam Conrad |
nominated for series |
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Ubuntu Precise |
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| 2013-01-28 03:23:16 |
Adam Conrad |
bug task added |
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eglibc (Ubuntu Precise) |
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| 2013-01-28 03:23:16 |
Adam Conrad |
nominated for series |
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Ubuntu Quantal |
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| 2013-01-28 03:23:16 |
Adam Conrad |
bug task added |
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eglibc (Ubuntu Quantal) |
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| 2013-01-28 03:40:28 |
Adam Conrad |
description |
Binary package hint: nscd
Debian (and by implication Ubuntu) are the only distros to disable nscd hosts caching. In most cases, it is deployed with the expectation to mitigate expensive lookups (eg over VPN).
The bug cited [1] has been rejected by the core glibc developers three years ago as not a bug; all other distros (including Redhat EL and Novell SLES) have this functionality enabled. Why should we continue to penalise Ubuntu's performance any longer, in cases where nscd is deployed to improve performance?
[1] http://sourceware.org/bugzilla/show_bug.cgi?id=4428 |
[Impact / Justification]
For nscd users, the performance difference between a cached DNS lookup and a remote query can be anywhere from milliseconds to whole seconds, depending on the network and random luck. I've already verified here today that the concerns originally raised in the upstream bug have since been fixed, and Debian also dropped this patch a while ago, we just failed to sync with them when they did.
[Test Case]
As stated above, I've already tested that the actual root issue that led to the patch has been resolved, so the only thing to test is that the build binaries no longer have host caching disabled in the default /etc/nscd.conf
[Regression Potential]
Very low to non-existent. It's a single line change to a conffile, reverting a workaround that hasn't been needed in a long while.
[Original Report]
Binary package hint: nscd
Debian (and by implication Ubuntu) are the only distros to disable nscd hosts caching. In most cases, it is deployed with the expectation to mitigate expensive lookups (eg over VPN).
The bug cited [1] has been rejected by the core glibc developers three years ago as not a bug; all other distros (including Redhat EL and Novell SLES) have this functionality enabled. Why should we continue to penalise Ubuntu's performance any longer, in cases where nscd is deployed to improve performance?
[1] http://sourceware.org/bugzilla/show_bug.cgi?id=4428 |
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| 2013-01-28 06:57:00 |
Adam Conrad |
eglibc (Ubuntu): status |
In Progress |
Fix Committed |
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| 2013-01-28 08:38:45 |
Adam Conrad |
eglibc (Ubuntu Precise): assignee |
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Adam Conrad (adconrad) |
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| 2013-01-28 08:39:44 |
Adam Conrad |
eglibc (Ubuntu): assignee |
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Adam Conrad (adconrad) |
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| 2013-01-28 08:40:28 |
Adam Conrad |
eglibc (Ubuntu Quantal): assignee |
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Adam Conrad (adconrad) |
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| 2013-01-28 10:59:51 |
Colin Watson |
eglibc (Ubuntu Precise): status |
New |
Fix Committed |
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| 2013-01-28 10:59:54 |
Colin Watson |
bug |
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added subscriber Ubuntu Stable Release Updates Team |
| 2013-01-28 10:59:55 |
Colin Watson |
bug |
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added subscriber SRU Verification |
| 2013-01-28 10:59:58 |
Colin Watson |
tags |
patch |
patch verification-needed |
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| 2013-01-28 11:00:39 |
Colin Watson |
eglibc (Ubuntu Quantal): status |
New |
Fix Committed |
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| 2013-01-28 19:13:19 |
Launchpad Janitor |
eglibc (Ubuntu): status |
Fix Committed |
Fix Released |
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| 2013-01-28 19:13:19 |
Launchpad Janitor |
cve linked |
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2012-3406 |
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| 2013-01-29 13:10:41 |
Daniel J Blueman |
tags |
patch verification-needed |
patch verification-done |
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| 2013-04-23 15:36:00 |
Colin Watson |
removed subscriber Ubuntu Stable Release Updates Team |
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| 2013-04-23 15:36:16 |
Launchpad Janitor |
eglibc (Ubuntu Precise): status |
Fix Committed |
Fix Released |
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| 2013-04-23 15:36:31 |
Launchpad Janitor |
eglibc (Ubuntu Quantal): status |
Fix Committed |
Fix Released |
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| 2013-06-25 06:19:11 |
Launchpad Janitor |
branch linked |
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lp:ubuntu/eglibc |
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| 2013-08-28 10:02:58 |
Launchpad Janitor |
branch linked |
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lp:~ubuntu-branches/ubuntu/precise/eglibc/precise-proposed |
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| 2013-08-28 10:03:50 |
Launchpad Janitor |
branch linked |
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lp:ubuntu/precise-updates/eglibc |
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| 2013-08-28 10:05:12 |
Launchpad Janitor |
branch linked |
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lp:~ubuntu-branches/ubuntu/quantal/eglibc/quantal-proposed |
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| 2013-08-28 10:06:44 |
Launchpad Janitor |
branch linked |
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lp:ubuntu/raring/eglibc |
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