Questions regarding cache algorithms by applications and implementations of information caching by database engines and other information repository and presentation applications.

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3
votes
2answers
225 views

Is having multiple CDN locations for a product self defeating?

I was double checking the URL for the CDN version of jQuery this morning, and noticed that there are three different locations now. Is having multiple networks hosting a product bad, or even ...
5
votes
2answers
873 views

How can I best implement 'cache until further notice' with memcache in multiple tiers?

the term "client" used here is not referring to client's browser, but client server Before cache workflow 1. client make a HTTP request --> 2. server process --> 3. store parsed results into ...
3
votes
4answers
886 views

What's the best way to cache a growing database table for html generation?

I've got a database table which will grow in size by about 5000 rows a hour. For a key that I would be querying by, the query will grow in size by about 1 row every hour. I would like a web page to ...
7
votes
5answers
5k views

Most Efficient Cache Replacement Algorithm [closed]

Wikipedia lists 11 cache replacement algorithms. Assuming I know almost nothing about the application I'm going to develop, what should I use as a "default" cache replacement algorithm? If I recall ...
10
votes
4answers
340 views

Why are message view counts laggy on most web sites?

Notice how view counts of youtube videos are always laggy? For example, a video has like 1000 comments and still has 500 hits, and will have 10000 hits hours after. Youtube isn't alone in this. Most ...
7
votes
5answers
992 views

How do you off load work from the database?

In at least the web development field, web servers are everywhere but are backed by very few database servers. As web servers get hit with requests they execute large queries on the database, putting ...
269
votes
13answers
78k views

So Singletons are bad, then what?

There has been a lot of discussion lately about the problems with using (and overusing) Singletons. I've been one of those people earlier in my career too. I can see what the problem is now, and yet, ...