[squid-users] TCP_MISS/502 Issue

hi guys

i am trying to understand the TCP_MISS/502 issue. I have many proxy
servers in production, all running ubuntu server 8.x to 10.x

in particular, i have one proxy server that has come up with the
TCP_MISS/502 POST error. Internet Explorer just comes up with "Internet
Explorer cannot display the web page" and the only error in Squid is the
_MISS/502 POST error.

on my other proxy servers, the web site displays without any problems
and their network setup is the same in terms of iptable rules. initially
i thought it could be a squid version problem, but i have loaded the
exact same version of squid on the server giving the error as another
squid server that is working.

can anyone make heads or tails from the cache log below and possibly
guide me with the other things to possibly check ?

thanks in advance, gabriel

2011/02/17 20:27:02| parseHttpRequest: URI is
'http://www.sarsefiling.co.za/images/HomePage/Top_Login_Roll.jpg'
Referer: http://www.sarsefiling.co.za/Default.aspx
Host: www.sarsefiling.co.za
Referer: http://www.sarsefiling.co.za/Default.aspx
Host: www.sarsefiling.co.za
Referer: http://www.sarsefiling.co.za/Default.aspx
Host: www.sarsefiling.co.za
2011/02/17 20:27:02| creating entry 0x8422960: near 'Referer:
http://www.sarsefiling.co.za/Default.aspx'
2011/02/17 20:27:02| created entry 0x8422960: 'Referer:
http://www.sarsefiling.co.za/Default.aspx'
2011/02/17 20:27:02| creating entry 0x8422438: near 'Host:
www.sarsefiling.co.za'
2011/02/17 20:27:02| created entry 0x8422438: 'Host: www.sarsefiling.co.za'
2011/02/17 20:27:02| The request GET
http://www.sarsefiling.co.za/images/HomePage/Top_Login_Roll.jpg is
ALLOWED, because it matched 'localhost'
2011/02/17 20:27:02| clientRedirectStart:
'http://www.sarsefiling.co.za/images/HomePage/Top_Login_Roll.jpg'
2011/02/17 20:27:02| clientRedirectDone:
'http://www.sarsefiling.co.za/images/HomePage/Top_Login_Roll.jpg'
result=NULL
2011/02/17 20:27:02| clientStoreURLRewriteStart:
'http://www.sarsefiling.co.za/images/HomePage/Top_Login_Roll.jpg'
2011/02/17 20:27:02| clientStoreURLRewriteDone:
'http://www.sarsefiling.co.za/images/HomePage/Top_Login_Roll.jpg'
result=NULL
2011/02/17 20:27:02| clientProcessRequest: GET
'http://www.sarsefiling.co.za/images/HomePage/Top_Login_Roll.jpg'
2011/02/17 20:27:02| clientProcessRequest: TCP_MISS for
'http://www.sarsefiling.co.za/images/HomePage/Top_Login_Roll.jpg'
2011/02/17 20:27:02| clientProcessMiss: 'GET
http://www.sarsefiling.co.za/images/HomePage/Top_Login_Roll.jpg'
2011/02/17 20:27:02| storeCreateEntry:
'http://www.sarsefiling.co.za/images/HomePage/Top_Login_Roll.jpg'
2011/02/17 20:27:02| storeKeyPrivate: GET
http://www.sarsefiling.co.za/images/HomePage/Top_Login_Roll.jpg
2011/02/17 20:27:02| fwdStart:
'http://www.sarsefiling.co.za/images/HomePage/Top_Login_Roll.jpg'
2011/02/17 20:27:02| peerSelect:
http://www.sarsefiling.co.za/images/HomePage/Top_Login_Roll.jpg
2011/02/17 20:27:02| peerSelectFoo: 'GET www.sarsefiling.co.za'
2011/02/17 20:27:02| peerSelectIcpPing:
http://www.sarsefiling.co.za/images/HomePage/Top_Login_Roll.jpg
2011/02/17 20:27:02| peerGetSomeParent: GET www.sarsefiling.co.za
2011/02/17 20:27:02| peerSelectCallback:
http://www.sarsefiling.co.za/images/HomePage/Top_Login_Roll.jpg
2011/02/17 20:27:02| fwdStartComplete:
http://www.sarsefiling.co.za/images/HomePage/Top_Login_Roll.jpg
2011/02/17 20:27:02| fwdConnectStart:
http://www.sarsefiling.co.za/images/HomePage/Top_Login_Roll.jpg
2011/02/17 20:27:02| pconnDelete: deleting www.sarsefiling.co.za:80
2011/02/17 20:27:02| fwdDispatch: FD 12: Fetching 'GET
http://www.sarsefiling.co.za/images/HomePage/Top_Login_Roll.jpg'
2011/02/17 20:27:02| httpStart: "GET
http://www.sarsefiling.co.za/images/HomePage/Top_Login_Roll.jpg"
2011/02/17 20:27:02| httpBuildRequestHeader: Referer:
http://www.sarsefiling.co.za/Default.aspx
2011/02/17 20:27:02| created entry 0x8422740: 'Referer:
http://www.sarsefiling.co.za/Default.aspx'
2011/02/17 20:27:02| httpBuildRequestHeader: Host: www.sarsefiling.co.za
2011/02/17 20:27:02| created entry 0x8422540: 'Host: www.sarsefiling.co.za'
2011/02/17 20:27:02| getMaxAge:
'http://www.sarsefiling.co.za/images/HomePage/Top_Login_Roll.jpg'
2011/02/17 20:27:02| destroying entry 0x8422740: 'Referer:
http://www.sarsefiling.co.za/Default.aspx'
2011/02/17 20:27:02| destroying entry 0x8422540: 'Host:
www.sarsefiling.co.za'
Referer: http://www.sarsefiling.co.za/Default.aspx
Host: www.sarsefiling.co.za
2011/02/17 20:27:02| parseHttpRequest: URI is
'http://www.sarsefiling.co.za/Default.aspx'
Referer: http://www.sarsefiling.co.za/Default.aspx
Host: www.sarsefiling.co.za
Referer: http://www.sarsefiling.co.za/Default.aspx
Host: www.sarsefiling.co.za
Referer: http://www.sarsefiling.co.za/Default.aspx
2011/02/17 20:27:02| creating entry 0x8422160: near 'Referer:
http://www.sarsefiling.co.za/Default.aspx'
2011/02/17 20:27:02| created entry 0x8422160: 'Referer:
http://www.sarsefiling.co.za/Default.aspx'
2011/02/17 20:27:02| creating entry 0x8422818: near 'Host:
www.sarsefiling.co.za'
2011/02/17 20:27:02| created entry 0x8422818: 'Host: www.sarsefiling.co.za'
2011/02/17 20:27:02| The request POST
http://www.sarsefiling.co.za/Default.aspx is ALLOWED, because it matched
'localhost'
2011/02/17 20:27:02| clientRedirectStart:
'http://www.sarsefiling.co.za/Default.aspx'
2011/02/17 20:27:02| clientRedirectDone:
'http://www.sarsefiling.co.za/Default.aspx' result=NULL
2011/02/17 20:27:02| clientStoreURLRewriteStart:
'http://www.sarsefiling.co.za/Default.aspx'
2011/02/17 20:27:02| clientStoreURLRewriteDone:
'http://www.sarsefiling.co.za/Default.aspx' result=NULL
2011/02/17 20:27:02| clientProcessRequest: POST
'http://www.sarsefiling.co.za/Default.aspx'
2011/02/17 20:27:02| clientProcessRequest: TCP_MISS for
'http://www.sarsefiling.co.za/Default.aspx'
2011/02/17 20:27:02| clientProcessMiss: 'POST
http://www.sarsefiling.co.za/Default.aspx'
2011/02/17 20:27:02| storeCreateEntry:
'http://www.sarsefiling.co.za/Default.aspx'
2011/02/17 20:27:02| storeKeyPrivate: POST
http://www.sarsefiling.co.za/Default.aspx
2011/02/17 20:27:02| fwdStart: 'http://www.sarsefiling.co.za/Default.aspx'
2011/02/17 20:27:02| peerSelect: http://www.sarsefiling.co.za/Default.aspx
2011/02/17 20:27:02| peerSelectFoo: 'POST www.sarsefiling.co.za'
2011/02/17 20:27:02| peerSelectIcpPing:
http://www.sarsefiling.co.za/Default.aspx
2011/02/17 20:27:02| peerSelectCallback:
http://www.sarsefiling.co.za/Default.aspx
2011/02/17 20:27:02| fwdStartComplete:
http://www.sarsefiling.co.za/Default.aspx
2011/02/17 20:27:02| fwdConnectStart:
http://www.sarsefiling.co.za/Default.aspx
2011/02/17 20:27:02| fd_open FD 17 http://www.sarsefiling.co.za/Default.aspx
2011/02/17 20:27:02| commConnectStart: FD 17, www.sarsefiling.co.za:80
2011/02/17 20:27:02| ipcache_nbgethostbyname: Name 'www.sarsefiling.co.za'.
2011/02/17 20:27:02| ipcache_nbgethostbyname: HIT for
'www.sarsefiling.co.za'
2011/02/17 20:27:02| ipcacheCycleAddr: www.sarsefiling.co.za now at
196.36.118.203
2011/02/17 20:27:02| ctx: enter level 0:
'http://www.sarsefiling.co.za/images/HomePage/Top_Login_Roll.jpg'
2011/02/17 20:27:02| clientSendHeaders: FD 12
'http://www.sarsefiling.co.za/images/HomePage/Top_Login_Roll.jpg'
2011/02/17 20:27:02| The reply for GET
http://www.sarsefiling.co.za/images/HomePage/Top_Login_Roll.jpg is
ALLOWED, because it matched 'all'
2011/02/17 20:27:02| storeSwapOut:
http://www.sarsefiling.co.za/images/HomePage/Top_Login_Roll.jpg
2011/02/17 20:27:02| fwdUnregister:
http://www.sarsefiling.co.za/images/HomePage/Top_Login_Roll.jpg
2011/02/17 20:27:02| pconnNew: adding www.sarsefiling.co.za:80
2011/02/17 20:27:02| pconnPush: pushed FD 15 for www.sarsefiling.co.za:80
2011/02/17 20:27:02| fwdComplete:
http://www.sarsefiling.co.za/images/HomePage/Top_Login_Roll.jpg
2011/02/17 20:27:02| fwdReforward:
http://www.sarsefiling.co.za/images/HomePage/Top_Login_Roll.jpg?
2011/02/17 20:27:02| storeSwapOut:
http://www.sarsefiling.co.za/images/HomePage/Top_Login_Roll.jpg
2011/02/17 20:27:02| httpRequestFree:
http://www.sarsefiling.co.za/images/HomePage/Top_Login_Roll.jpg
2011/02/17 20:27:02| httpRequestFree:
al.url='http://www.sarsefiling.co.za/images/HomePage/Top_Login_Roll.jpg'
2011/02/17 20:27:02| storeSwapOut:
http://www.sarsefiling.co.za/images/HomePage/Top_Login_Roll.jpg
2011/02/17 20:27:02| ctx: enter level 0:
'http://www.sarsefiling.co.za/images/HomePage/Top_Login_Roll.jpg'
2011/02/17 20:27:02| destroying entry 0x8422960: 'Referer:
http://www.sarsefiling.co.za/Default.aspx'
2011/02/17 20:27:02| destroying entry 0x8422438: 'Host:
www.sarsefiling.co.za'
2011/02/17 20:27:02| fwdConnectDone: FD 17:
'http://www.sarsefiling.co.za/Default.aspx'
2011/02/17 20:27:02| fwdDispatch: FD 16: Fetching 'POST
http://www.sarsefiling.co.za/Default.aspx'
2011/02/17 20:27:02| httpStart: "POST
http://www.sarsefiling.co.za/Default.aspx"
2011/02/17 20:27:02| httpBuildRequestHeader: Referer:
http://www.sarsefiling.co.za/Default.aspx
2011/02/17 20:27:02| created entry 0x8405200: 'Referer:
http://www.sarsefiling.co.za/Default.aspx'
2011/02/17 20:27:02| httpBuildRequestHeader: Host: www.sarsefiling.co.za
2011/02/17 20:27:02| created entry 0x8422480: 'Host: www.sarsefiling.co.za'
2011/02/17 20:27:02| getMaxAge: 'http://www.sarsefiling.co.za/Default.aspx'
2011/02/17 20:27:02| destroying entry 0x8405200: 'Referer:
http://www.sarsefiling.co.za/Default.aspx'
2011/02/17 20:27:02| destroying entry 0x8422480: 'Host:
www.sarsefiling.co.za'
Referer: http://www.sarsefiling.co.za/Default.aspx
Host: www.sarsefiling.co.za
  http://www.sarsefiling.co.za/Default.aspx
2011/02/17 20:27:08| fwdServerClosed: FD 19
http://www.sarsefiling.co.za/Default.aspx
2011/02/17 20:27:08| errorConvert: %U -->
'http://www.sarsefiling.co.za/Default.aspx'
2011/02/17 20:27:08| errorConvert: %U -->
'http://www.sarsefiling.co.za/Default.aspx'
2011/02/17 20:27:08| clientSendHeaders: FD 27
'http://www.sarsefiling.co.za/Default.aspx'
2011/02/17 20:27:08| The reply for POST
http://www.sarsefiling.co.za/Default.aspx is ALLOWED, because it matched
'all'
2011/02/17 20:27:08| storeSwapOut: http://www.sarsefiling.co.za/Default.aspx
2011/02/17 20:27:08| storeSwapOut: http://www.sarsefiling.co.za/Default.aspx
2011/02/17 20:27:08| fd_close FD 19
http://www.sarsefiling.co.za/Default.aspx
2011/02/17 20:27:08| clientSendMoreData:
http://www.sarsefiling.co.za/Default.aspx, 1107 bytes
2011/02/17 20:27:08| clientSendMoreData: FD 27
'http://www.sarsefiling.co.za/Default.aspx', out.offset=214
2011/02/17 20:27:08| httpRequestFree:
http://www.sarsefiling.co.za/Default.aspx
2011/02/17 20:27:08| httpRequestFree:
al.url='http://www.sarsefiling.co.za/Default.aspx'
2011/02/17 20:27:08| storeSwapOut: http://www.sarsefiling.co.za/Default.aspx
2011/02/17 20:27:08| ctx: enter level 0:
'http://www.sarsefiling.co.za/Default.aspx'
2011/02/17 20:27:08| destroying entry 0x840b5a0: 'Referer:
http://www.sarsefiling.co.za/Default.aspx'
2011/02/17 20:27:08| destroying entry 0x840b3e8: 'Host:
www.sarsefiling.co.za'
  http://www.sarsefiling.co.za/Default.aspx
2011/02/17 20:27:28| fwdServerClosed: FD 24
http://www.sarsefiling.co.za/Default.aspx
2011/02/17 20:27:28| errorConvert: %U -->
'http://www.sarsefiling.co.za/Default.aspx'
2011/02/17 20:27:28| errorConvert: %U -->
'http://www.sarsefiling.co.za/Default.aspx'
2011/02/17 20:27:28| clientSendHeaders: FD 18
'http://www.sarsefiling.co.za/Default.aspx'
2011/02/17 20:27:28| The reply for POST
http://www.sarsefiling.co.za/Default.aspx is ALLOWED, because it matched
'all'
2011/02/17 20:27:28| storeSwapOut: http://www.sarsefiling.co.za/Default.aspx
2011/02/17 20:27:28| storeSwapOut: http://www.sarsefiling.co.za/Default.aspx
2011/02/17 20:27:28| fd_close FD 24
http://www.sarsefiling.co.za/Default.aspx
2011/02/17 20:27:28| clientSendMoreData:
http://www.sarsefiling.co.za/Default.aspx, 1107 bytes
2011/02/17 20:27:28| clientSendMoreData: FD 18
'http://www.sarsefiling.co.za/Default.aspx', out.offset=214
2011/02/17 20:27:28| httpRequestFree:
http://www.sarsefiling.co.za/Default.aspx
2011/02/17 20:27:28| httpRequestFree:
al.url='http://www.sarsefiling.co.za/Default.aspx'
2011/02/17 20:27:28| storeSwapOut: http://www.sarsefiling.co.za/Default.aspx
2011/02/17 20:27:28| ctx: enter level 0:
'http://www.sarsefiling.co.za/Default.aspx'
2011/02/17 20:27:28| destroying entry 0x8406ad8: 'Referer:
http://www.sarsefiling.co.za/Default.aspx'
2011/02/17 20:27:28| destroying entry 0x840cb98: 'Host:
www.sarsefiling.co.za'
2011/02/17 20:28:02| pconnTimeout: FD 15 www.sarsefiling.co.za:80
2011/02/17 20:28:02| pconnDelete: deleting www.sarsefiling.co.za:80
2011/02/17 20:28:02| fd_close FD 15 www.sarsefiling.co.za idle connection
  http://www.sarsefiling.co.za/Default.aspx
2011/02/17 20:29:08| fwdServerClosed: FD 17
http://www.sarsefiling.co.za/Default.aspx
2011/02/17 20:29:08| errorConvert: %U -->
'http://www.sarsefiling.co.za/Default.aspx'
2011/02/17 20:29:08| errorConvert: %U -->
'http://www.sarsefiling.co.za/Default.aspx'
2011/02/17 20:29:08| clientSendHeaders: FD 16
'http://www.sarsefiling.co.za/Default.aspx'
2011/02/17 20:29:08| The reply for POST
http://www.sarsefiling.co.za/Default.aspx is ALLOWED, because it matched
'all'
2011/02/17 20:29:08| storeSwapOut: http://www.sarsefiling.co.za/Default.aspx
2011/02/17 20:29:08| storeSwapOut: http://www.sarsefiling.co.za/Default.aspx
2011/02/17 20:29:08| fd_close FD 17
http://www.sarsefiling.co.za/Default.aspx
2011/02/17 20:29:08| clientSendMoreData:
http://www.sarsefiling.co.za/Default.aspx, 1107 bytes
2011/02/17 20:29:08| clientSendMoreData: FD 16
'http://www.sarsefiling.co.za/Default.aspx', out.offset=214
2011/02/17 20:29:08| httpRequestFree:
http://www.sarsefiling.co.za/Default.aspx
2011/02/17 20:29:08| httpRequestFree:
al.url='http://www.sarsefiling.co.za/Default.aspx'
2011/02/17 20:29:08| storeSwapOut: http://www.sarsefiling.co.za/Default.aspx
2011/02/17 20:29:08| ctx: enter level 0:
'http://www.sarsefiling.co.za/Default.aspx'
2011/02/17 20:29:08| destroying entry 0x8422160: 'Referer:
http://www.sarsefiling.co.za/Default.aspx'
2011/02/17 20:29:08| destroying entry 0x8422818: 'Host:
www.sarsefiling.co.za'
Received on Thu Feb 17 2011 - 18:57:19 MST