On 25/06/2013 5:51 p.m., Reid Watson wrote:
Hi,
We seem to be having a strange issue with SQUID caching an object once it has
been purged - this issue does not occur with all objects within the cache..
Quick Overview
- Four Apache Server with Squid Installed
- RedHat 5.7 i386
- squid-3.1.8-1.el5
Issue
- Admin sends a Purge request simultaneously to all four server
Example
1372113766.459 0 10.10.10.10 TCP_MISS/200 280 PURGE
http://www.auckland.ac.nz/uoa/ - NONE/- -
- Squid seems to fail on caching the object
- All requests are sent to backend servers
Server 1
1372113766.459 0 10.10.10.10 TCP_MISS/200 280 PURGE
http://www.auckland.ac.nz/uoa/ - NONE/- -
372113766.779 23 10.10.10.3 TCP_MISS/504 5063 GET
http://www.auckland.ac.nz/uoa/ - NONE/- text/html
What exactly is this 504 error saying?
1372114043.139 106378 127.0.0.1 TCP_MISS/200 9891 GET
http://www.auckland.ac.nz/uoa/ - FIRST_UP_PARENT/vip-dr text/html
1372114043.303 10112 127.0.0.1 TCP_MISS/500 24731 GET
http://www.auckland.ac.nz/uoa/ - ANY_PARENT/vip-dr text/html
1372114105.918 0 10.10.10.3 TCP_MISS/504 4591 GET
http://www.auckland.ac.nz/uoa/ - NONE/- text/html
1372114106.414 57182 127.0.0.1 TCP_MISS/200 69995 GET
http://www.auckland.ac.nz/uoa/ - FIRST_UP_PARENT/vip-dr text/html
1372114106.419 55771 127.0.0.1 TCP_MISS/200 45853 GET
http://www.auckland.ac.nz/uoa/ - ANY_PARENT/vip-dr text/html
1372114106.436 17387 127.0.0.1 TCP_MISS/200 69967 GET
http://www.auckland.ac.nz/uoa/ - FIRST_UP_PARENT/vip-dr text/html
1372114106.490 60516 127.0.0.1 TCP_MISS/200 70115 GET
http://www.auckland.ac.nz/uoa/ - FIRST_UP_PARENT/vip-dr text/html
1372114106.707 58628 127.0.0.1 TCP_MISS/200 70115 GET
http://www.auckland.ac.nz/uoa/ - ANY_PARENT/vip-dr text/html
And why are the 200 status when they do occur taking so very long to
generate?
- if you send a reload command (/sbin/service squid reload) the object is
stored within the cache instanlty
What are the headers sent from the origin server to Squid?
Amos
