Re: MasonHQ node caching, and other bugs

On Mon, 11 Apr 2005, Jonathan Swartz wrote:

>> When editing a page, especially when editing a page that has just been
>> updated, I often find myself editing old content. The edit.html loads old
>> content into the form. A few reloads will cycle between various revisions
>> of the page. The page is not cached by a proxy server. Tracking through
>> the code, I end up on lib/MHQ/Wiki/Node.pm in the latest_version()
>> subroutine. This piece of code does not return the latest version, but
>> instead whatever is cached in ... in apache I guess.
>>
>>    sub latest_version
>>    {
>>      my ($self) = @_;
>>      unless (defined($self->{_latest_version})) {
>>        ($self->{_latest_version}) =
>>          $self->versions(version_id=>$self->latest_version_id);
>>      }
>>      return $self->{_latest_version};
>>    }
>
> It is caching in the Node object itself, which should be recreated every
> request. So I don't think this is the problem.

How can I confirm if the Node object is cached?

> Are you still having this problem? If so, after editing and saving a page,
> check the node entry database to see if it has been updated. If not, then
> for some reason your query isn't being committed to the database. (Are you
> using a database with transactions?)

I solved the problem by setting MaxrequestsPerChild to 1. But the site 
became very slow, so I would like to find other solution.

I use mysql for storage. I'm fairly certain that data gets committed to db 
right after submitting web form.

>> 2) Slowness, internal server error.
>>
>> Starting up apache takes a lot of time. And new instances have to be
>> spawned often, so the site is generally pretty slow. Keeping
>>
>>    MaxRequestsPerChild 10
>>
>> in conf/httpd-prod.conf.src generally works, but is slow. Increasing the
>> number results in frequent internal server errors.
>
> Internal server errors should be matched with errors in the logs...what are
> the errors?

I will try to catch the log messages next time they happen and send here.

>> 3) Links to local files.
>>
>> The might be a restriction in Kwiki more than MasonHQ. But there seem to
>> be no syntax for linking to local files.
>>
>> I guess I can create new rules in lib/MHQ/CGI/Kwiki/Formatter.pm for this
>> purpose?
>
> Yup.

Thanks. I have made several updates and it works fine. But it seems that 
the rules can over lap. I sometimes get Wiki words inside code tages. For 
example will [=/opt/SUNWabc] generate a wiki word.

>> 4) Bugs and documentation
>>
>> I have fixed a few other bugs in the code, as well as kept an installation
>> journal that is more accurate than the one provided. Is there somewhere to
>> send patches and docs updates?
>
> Please post them to this list, and I'll try to get to them with more haste
> than before. :)

I will do.

> A better installation journal would be great. Actually this should probably
> be put on the wiki and linked from http://masonhq.com/?SourceForThisSite, so
> that it can be easily updated.

Should I send my journal directly to you first?

Soren


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