[squid-users] Dead parent never reviving

Hello again everyone, one more question for the knowledgable amongst you all.

Here's the situation. I get a phone call from a remote office asking if the internet is down. I quickly pull up a browser window, and everything is fine. Asking what the error is, I find out that they're getting an error from the squid box in their office that it can't contact it's parent cache. Now I know the parent cache is fine, as that's what I have used to check the internet access. Also other offices are working without any problems. I get them to reboot the cache in the remote office and it doesn't help, they are getting the same error. I then reboot the parent cache and things start working. Odd thing is though, I have 4 remote sites, and only the one was complaining, the other three were working fine before I rebooted the parent cache. This happened a few weeks ago, and now I have the same symptoms, with a different remote site this time. Same again, reboot the parent cache and things start working again.

I thought the detecting of a revived dead parent was supposed to be automatic? The parent cache in all these cases was still accessible by other child caches. I have an inkling that there was some network congestion on the link to the remote site. Could this be a factor? and if so, what can I do to resolve this so I don't have to reboot my parent cache all the time.

All caches are running 2.3 Stable 4

This is an extract from the cache log on the remote cache

2002/09/04 14:04:06| TCP connection to 10.65.9.132/3128 failed
2002/09/04 14:04:19| TCP connection to 10.65.9.132/3128 failed
2002/09/04 14:04:27| TCP connection to 10.65.9.132/3128 failed
2002/09/04 14:04:37| TCP connection to 10.65.9.132/3128 failed
2002/09/04 14:04:50| TCP connection to 10.65.9.132/3128 failed
2002/09/04 14:04:51| TCP connection to 10.65.9.132/3128 failed
2002/09/04 14:04:58| TCP connection to 10.65.9.132/3128 failed
2002/09/04 14:05:05| TCP connection to 10.65.9.132/3128 failed
2002/09/04 14:05:20| TCP connection to 10.65.9.132/3128 failed
2002/09/04 14:05:22| TCP connection to 10.65.9.132/3128 failed
2002/09/04 14:05:32| Failed to select source for 'http://www.jbwere.com.au/Research/MarketUpdate/default.cfm'
2002/09/04 14:05:32| always_direct = 0
2002/09/04 14:05:32| never_direct = 1
2002/09/04 14:05:32| timedout = 1
2002/09/04 14:05:38| Detected DEAD Parent: 10.65.9.132/3128/3130
2002/09/04 14:05:38| Failed to select source for 'http://www.usopen.org/'
2002/09/04 14:05:38| always_direct = 0
2002/09/04 14:05:38| never_direct = 1
2002/09/04 14:05:38| timedout = 0

The failed to select source messages go on till

2002/09/04 15:16:36| TCP connection to 10.65.9.132/3128 succeeded
2002/09/04 15:16:49| Detected REVIVED Parent: 10.65.9.132/3128/3130

This is when I rebooted the parent cache

These are the two relevant squid.conf files

Parent Squid.conf

http_port 3128
icp_port 3130
cache_peer 10.65.9.1 parent 80 7 no-query default
cache_mem 66 MB
maximum_object_size 10240 KB
cache_dir ufs /home/squid2/cache 30456.529 16 256
cache_access_log /home/squid2/logs/access.log
cache_log /home/squid2/logs/cache.log
cache_store_log none
cache_swap_log /etc/squid/swap.log
mime_table /home/squid2/etc/mime.conf
pid_filename /etc/squid/squid.pid
unlinkd_program /home/squid2/bin/unlinkd
refresh_pattern . 0 10% 2880
refresh_pattern . 0 10% 2880
refresh_pattern . 0 10% 2880
quick_abort_min 10 KB
quick_abort_max 50 KB
quick_abort_pct 90
negative_ttl 5 minutes
range_offset_limit 0 KB
acl all src 0.0.0.0/0.0.0.0
http_access allow all
icp_access allow all
cache_effective_user nobody
cache_effective_group nobody
logfile_rotate 1
store_avg_object_size 11 KB
never_direct allow all
icon_directory /home/squid2/etc/icons
error_directory /home/squid2/etc/errors
uri_whitespace allow
proxy_pac_url none
proxy_pac_refresh 0 hours
lookahead_timeout 30 seconds
lookahead_window 5
lookahead_tags APPLET,[CODEBASE]ARCHIVE APPLET,[CODEBASE]CODE APPLET,[CODEBASE]OBJECT APPLET,[CODEBASE]SRC BGSOUND,SRC BODY,BACKGROUND EMBED,[CODEBASE]SRC EMBED,[CODEBASE]CODE FRAME,SRC IFRAME,SRC IMG,SRC IMG,DYNSRC OBJECT,[CODEBASE]ARCHIVE OBJECT,[CODEBASE]CLASSID OBJECT,CODE OBJECT,[CODEBASE]DATA SCRIPT,SRC
lookahead_depth 2
server_http_version 1.1
server_pipeline_depth 3

Child squid.conf

http_port 3128
icp_port 3130
cache_peer 10.65.9.132 parent 3128 3130
cache_mem 32 MB
maximum_object_size 10240 KB
cache_dir ufs /home/squid2/cache 14562.548 16 256
cache_access_log /home/squid2/logs/access.log
cache_log /home/squid2/logs/cache.log
cache_store_log none
cache_swap_log /etc/squid/swap.log
mime_table /home/squid2/etc/mime.conf
pid_filename /etc/squid/squid.pid
unlinkd_program /home/squid2/bin/unlinkd
refresh_pattern . 0 10% 2880
refresh_pattern . 0 10% 2880
refresh_pattern . 0 10% 2880
quick_abort_min 10 KB
quick_abort_max 50 KB
quick_abort_pct 90
negative_ttl 5 minutes
range_offset_limit 0 KB
acl all src 0.0.0.0/0.0.0.0
http_access allow all
icp_access allow all
cache_effective_user nobody
cache_effective_group nobody
logfile_rotate 1
store_avg_object_size 11 KB
never_direct allow all
icon_directory /home/squid2/etc/icons
error_directory /home/squid2/etc/errors
uri_whitespace allow
proxy_pac_url none
proxy_pac_refresh 0 hours
lookahead_timeout 30 seconds
lookahead_window 20
lookahead_tags APPLET,[CODEBASE]ARCHIVE APPLET,[CODEBASE]CODE APPLET,[CODEBASE]OBJECT APPLET,[CODEBASE]SRC BGSOUND,SRC BODY,BACKGROUND EMBED,[CODEBASE]SRC EMBED,[CODEBASE]CODE FRAME,SRC IFRAME,SRC IMG,SRC IMG,DYNSRC OBJECT,[CODEBASE]ARCHIVE OBJECT,[CODEBASE]CLASSID OBJECT,CODE OBJECT,[CODEBASE]DATA SCRIPT,SRC
lookahead_depth 2
server_http_version 1.1
server_pipeline_depth 3

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Received on Wed Sep 04 2002 - 00:30:29 MDT