Hi,

On Thu, Dec 17, 2009 at 10:48 PM, killer barney <[email protected]> wrote:

> sorry, hopefully I can explain in better detail :)
>
> I have a list of keywords in a table that's the size of thousands.  It
> changes, but not very often, so the list doesn't have to be updated
> all that often.
>
> When I receive a body of text, I want to highlight the keywords in the
> body of text.  So I have to constantly compare the body of text to my
> keywords.  Because of that, I think querying would be too large a hit
> on the database.  So I have a working version where I store in
> memcache keywords sharded by letter, for example storing all keywords
> starting with the letter 'A', and so forth.  This is a temporary fix
> that will work for now but will cause problems later as my keywords
> exceed 1000 per letter.  Not only that, when the memcache gets
> disposed, the user will have to query to populate that memcache, which
> could take a really long time for that unlucky person who has to
> populate the memcache for everybody else.
>
> So looking for a better version of what I'm currently doing.
>

Why not simply load the keywords from a local file on disk?

-Nick Johnson


>
> On Dec 16, 5:12 am, "Nick Johnson (Google)" <[email protected]>
> wrote:
> > Hi,
> >
> > It's difficult to comment usefully without more information. Where do you
> > get your list from? How is it calculated? How large is it?
> >
> > -Nick Johnson
> >
> >
> >
> >
> >
> > On Tue, Dec 15, 2009 at 11:11 PM, killer barney <[email protected]>
> wrote:
> > > I have a question that perhaps someone can give me some insight on.
> >
> > > I have a list of thousands of keywords in my website that I am going
> > > to constantly need to query and iterate through.  So I thought rather
> > > than querying for every keyword in the datastore everytime, I should
> > > store it in the memcache.  But even this doesn't seem like a very good
> > > solution as the memcache gets eliminated and I'm going to have to
> > > somehow query the whole list and store it back into memcache everytime
> > > it gets disposed of.
> >
> > > I thought about having the list stored as sharded arrays into
> > > memcache, so when it does get disposed of, then I only have to update
> > > the keywords that start with "N", for example, but this still doesn't
> > > seem like the best solution.
> >
> > > Is there a better way to do this?
> >
> > > --
> >
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> > --
> > Nick Johnson, Developer Programs Engineer, App Engine
> > Google Ireland Ltd. :: Registered in Dublin, Ireland, Registration
> Number:
> > 368047
> >
> > --
> > Nick Johnson, Developer Programs Engineer, App Engine
> > Google Ireland Ltd. :: Registered in Dublin, Ireland, Registration
> Number:
> > 368047
>
> --
>
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>


-- 
Nick Johnson, Developer Programs Engineer, App Engine
Google Ireland Ltd. :: Registered in Dublin, Ireland, Registration Number:
368047

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