On Mon, May 17, 2010 at 8:37 PM, Mike McGrath <mmcgrath@xxxxxxxxxx> wrote:
> On Mon, 17 May 2010, Matt Domsch wrote:
>
>> Now that I've knocked out a few MM bugs, other interesting trends are
>> emerging.
>>
>> Why are the app* servers running all these in cron.daily? The
>> combination of these take approximately 2 hours, and show up very
>> noticibly on the collectd graphs. I'm not sure which ones are the
>> most IO-intensive for that duration - I haven't caught it during the
>> run to watch.
>>
>> logrotate - arguably necessary, unless this is done centrally instead?
>>
>> makewhatis.cron - we don't have many manpages on the app servers, and
>> don't change them that often. Daily? Really?
Well if we were running fedora and running updates daily might not be
fast enough :).
>> prelink - we don't start apps that often - they're mostly
>> long-running.
If I understand prelink correctly, it really only needs to be run
after an RPM update. We could move this to a monthly cron or a check
that if rpm -V shows prelink problems it is run.
>> rkhunter - arguably necessary
>>
>> rpm - again, daily? Unclear what this serves us. It's just a file
>> listing all the RPMs installed at that moment in time.
>>
>> tetex.cron - looks like it'd go fast, so no big deal. But why do we
>> have tetex-fonts installed on the app servers?
I think they get pulled in from some dependency chain. Ah yes.. mediawiki
Removing:
tetex-fonts i386
3.0-33.8.el5 installed
57 M
Removing for dependencies:
mediawiki i386
1.14.1-1.el5 installed
401 k
mediawiki-Boilerplate noarch
0.0.3-1.el5 installed
1.1 k
mediawiki-Cite noarch
0-0.3.20080901svn.el5 installed
294 k
mediawiki-Click noarch
0-0.1.20080607svn.fi installed
4.8 k
mediawiki-ConfirmEdit noarch
45409-1.el5 installed
425 k
mediawiki-HNP noarch
1.1.2-1.el5 installed
33 k
mediawiki-Lockdown noarch
0-0.1.20081221svn installed
9.7 k
mediawiki-ParserFunctions noarch
1.1.1-4.svn45003.el5 installed
160 k
mediawiki-SpecialInterwiki noarch
0-0.4.svn49252.el5 installed
221 k
mediawiki-StubManager noarch
1.3.0-1.el5 installed
36 k
mediawiki-WatchSubpages noarch
1.0-1.20080521svn35078.el5 installed
39 k
mediawiki-math i386
1.14.1-1.el5 installed
1.2 M
tetex i386
3.0-33.8.el5 installed
63 M
tetex-dvips i386
3.0-33.8.el5 installed
2.0 M
tetex-latex i386
3.0-33.8.el5 installed
24 M
Transaction Summary
======================================================================================================================================================================
Remove 16 Package(s)
Reinstall 0 Package(s)
Downgrade 0 Package(s)
>> tmpwatch - good to have
>>
>> Something to consider revising after the freeze?
>>
>
>
> I agree with all of the above assessments.
>
> -Mike
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--
Stephen J Smoogen.
“The core skill of innovators is error recovery, not failure avoidance.”
Randy Nelson, President of Pixar University.
"We have a strategic plan. It's called doing things.""
— Herb Kelleher, founder Southwest Airlines
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