[squid-dev] [PATCH] pconn_lifetime

[Tsantilas Christos]

Hi all,

  I am attaching a new patch for the "pconn_lifetime" feature. A first 
patch has posted in mailing list and discussed under the mail thread 
with the same title 1-2 months ago.

This patch is similar to the old one posted, with a small fix to better 
handle pipelined connections:
   1. finish interpreting the Nth request
      check whether pconn_lifetime has expired
   2. if pconn_lifetime has expired, then stop further reading and
      do not interpret any already read raw bytes of the N+1st request
   3. otherwise, read and interpret read raw bytes of the N+1st request
      and go to #1.

The above should be enough. The pipelined requests are always 
idempotent, they do not have body data to take care about, and the web 
clients knows that if a pipelined HTTP request failed, it should be 
retried in a new connection.

I must recall the following about this patch:
    - The pconn_lifetime it applies to any persistent connection, 
server, client, or ICAP.
    - This patch does not fix other problems may exist in current squid.
    - The pconn_lifetime should not confused with the client_lifetime 
timeout. They have different purpose.

This is a Measurement Factory project

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