[Varnish] #373: Varnish fails to reload backend/directory

Tue Nov 11 17:04:57 CET 2008

#373: Varnish fails to reload backend/directory
----------------------+-----------------------------------------------------
 Reporter:  anders    |        Owner:  phk  
     Type:  defect    |       Status:  new  
 Priority:  normal    |    Milestone:       
Component:  varnishd  |      Version:  trunk
 Severity:  normal    |   Resolution:       
 Keywords:            |  
----------------------+-----------------------------------------------------
Comment (by anders):

 Uhm. Sorry. But, for some reason, while changing the probe definition,
 some requests are updated according to the VCL, but some are not. Checking
 with ngrep, I see that every second probe against the same server uses a
 probe is no longer in the loaded VCL:

 {{{
 T 192.168.41.132:61629 -> 192.168.41.137:80 [AP]
 GET /varnish-lb-check.html HTTP/1.1.
 Host: foo.bars.no.
 Connection: close.
 .

 ###
 T 192.168.41.137:80 -> 192.168.41.132:61629 [AP]
 HTTP/1.1 200 OK.
 Connection: close.
 Content-Type: text/html.
 ETag: "6940323574995064302".
 Accept-Ranges: bytes.
 Last-Modified: Tue, 04 Nov 2008 19:58:26 GMT.
 Content-Length: 47.
 Date: Tue, 11 Nov 2008 15:59:34 GMT.
 Server: lighttpd/1.4.13.
 .
 <html><body>
 <p>Works fine.</p>
 </body></html>

 ######
 T 192.168.41.132:57516 -> 192.168.41.137:80 [AP]
 GET /xvarnish-lb-check.html HTTP/1.1.
 Host: baz.bars.no.
 Connection: close.
 .

 ###
 T 192.168.41.137:80 -> 192.168.41.132:57516 [AP]
 HTTP/1.1 404 Not Found.
 Connection: close.
 Content-Type: text/html.
 Content-Length: 345.
 Date: Tue, 11 Nov 2008 15:59:36 GMT.
 Server: lighttpd/1.4.13.
 .
 <?xml version="1.0" encoding="iso-8859-1"?>
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
          "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
  <head>
   <title>404 - Not Found</title>
  </head>
  <body>
   <h1>404 - Not Found</h1>
  </body>
 </html>

 ######
 T 192.168.41.132:63120 -> 192.168.41.137:80 [AP]
 GET /varnish-lb-check.html HTTP/1.1.
 Host: foo.bars.no.
 Connection: close.
 .

 ###
 T 192.168.41.137:80 -> 192.168.41.132:63120 [AP]
 HTTP/1.1 200 OK.
 Connection: close.
 Content-Type: text/html.
 ETag: "6940323574995064302".
 Accept-Ranges: bytes.
 Last-Modified: Tue, 04 Nov 2008 19:58:26 GMT.
 Content-Length: 47.
 Date: Tue, 11 Nov 2008 15:59:37 GMT.
 Server: lighttpd/1.4.13.
 .
 <html><body>
 <p>Works fine.</p>
 </body></html>

 ##^Cexit
 }}}

 So we have a problem with updating the probes also, not only commenting
 in/out a backend.

-- 
Ticket URL: <http://varnish.projects.linpro.no/ticket/373#comment:2>
Varnish <http://varnish.projects.linpro.no/>
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