Comments on: ADOdb Cache Write Error http://www.programmersparadox.com/2008/10/23/adodb-cache-write-error/ Long form thoughts from a Software Engineer Thu, 19 Jan 2012 13:42:07 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Mark http://www.programmersparadox.com/2008/10/23/adodb-cache-write-error/comment-page-1/#comment-2994 Mark Mon, 23 Mar 2009 02:14:42 +0000 http://www.programmersparadox.com/?p=387#comment-2994 Hey Andy, It's been a while since I looked at this, but I remember that what I found was that there could be a potential problem with the code in the PHP implementation of memcached, although I'm not certain on that. It is also possible this is caused by the way we're using memcached and isn't a coding problem but instead a utilization problem. Unfortunately, it's hard to tell without setting up tests to look at the issue more closely, which is something I've never done and hasn't been a pressing issue (for me). Hey Andy,

It’s been a while since I looked at this, but I remember that what I found was that there could be a potential problem with the code in the PHP implementation of memcached, although I’m not certain on that. It is also possible this is caused by the way we’re using memcached and isn’t a coding problem but instead a utilization problem. Unfortunately, it’s hard to tell without setting up tests to look at the issue more closely, which is something I’ve never done and hasn’t been a pressing issue (for me).

]]> By: Andy http://www.programmersparadox.com/2008/10/23/adodb-cache-write-error/comment-page-1/#comment-2975 Andy Sat, 21 Mar 2009 13:47:53 +0000 http://www.programmersparadox.com/?p=387#comment-2975 Hey, Mark.. I took a stab at this one yesterday, with no luck. For what it's worth, this post is now Google's #1 result for the query "cache write error memcache adodb". Cool for you, a little depressing for me :) Did your investigations ever lead you to the idea it was a problem internal to memcached? Hey, Mark.. I took a stab at this one yesterday, with no luck. For what it’s worth, this post is now Google’s #1 result for the query “cache write error memcache adodb”. Cool for you, a little depressing for me :)

Did your investigations ever lead you to the idea it was a problem internal to memcached?

]]> By: Mark http://www.programmersparadox.com/2008/10/23/adodb-cache-write-error/comment-page-1/#comment-1967 Mark Mon, 27 Oct 2008 18:00:38 +0000 http://www.programmersparadox.com/?p=387#comment-1967 I didn't realize it was called dog-piling. I'll read the links and see what I can learn. Thanks. I didn’t realize it was called dog-piling. I’ll read the links and see what I can learn. Thanks.

]]> By: W. Andrew Loe III http://www.programmersparadox.com/2008/10/23/adodb-cache-write-error/comment-page-1/#comment-1966 W. Andrew Loe III Mon, 27 Oct 2008 17:34:57 +0000 http://www.programmersparadox.com/?p=387#comment-1966 This generally called 'dog-piling'. There are a variety of solutions depending on your tolerance for serving 'stale' data. http://highscalability.com/strategy-break-memcache-dog-pile http://blog.kovyrin.net/2008/03/10/dog-pile-effect-and-how-to-avoid-it-with-ruby-on-rails-memcache-client-patch/ This generally called ‘dog-piling’.

There are a variety of solutions depending on your tolerance for serving ‘stale’ data.

http://highscalability.com/strategy-break-memcache-dog-pile
http://blog.kovyrin.net/2008/03/10/dog-pile-effect-and-how-to-avoid-it-with-ruby-on-rails-memcache-client-patch/

]]>