Re: [cobalt-users] Re[3] Qube2 responding too slow

[Malcolm McLeary <mmcleary@xxxxxxx>]

Luis,

on 24/10/00 12:37 AM, Luis E. Norambuena at norambna-cb@xxxxxxxxxxxxxxxxx
wrote:

> I am still having delays (only sometimes) when checking the local mail or
> trying to telnet the Qube.

The Qube may just be busy ...

Is there a time of day when it is a problem?

If you have lots of data on your Qube and the problem is in the morning,
then the search engine may be still doing its index thing.  I have seen this
process consume 60% of the cpu and cause problems for users accessing email
and filesharing services.

The indexing function runs nightly so in /etc/cron.daily there is a perl
script buildSearchIndex.pl.  Move or remove this script and indexing will
not happen.  In case you want it back someday move it to /etc/cron.never

Alternatively you can edit the script to restrict its scope;

# add directories to index below as needed (within quotes)
my $gIndexDirs = '"/home/groups/home"';

This will force it to ONLY index the home group which is where I keep all my
web stuff.  I don't want it to index all the users or other groups as they
are for filesharing and don't contain anything worth indexing.

Are you using IMAP and leaving read mail in your inbox?  This can have a
significant performance hit.

Similarly, does you mail client purge your IMAP folders?  You may think you
are deleting read mail, but if you don't purge it will still be there.

> Our DNS settings are following: The DNS Service is running. Under Network,
> the Primary DNS is the Qube itself (10.0.0.1 in our case) and the Secondary
> DNS is the ISP's DNS.
> 
> What I still don't get, is why the Qube would try to lookup any names at
> all, if I just try to check my local mail?!

It is my understanding that it is checking who you are.

Cheers,  Malcolm

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