2月 092012
 

Do you use a Varnish? I’ve been using.
I think to using varnishlog for VCL debugging.

For example, the output of the varnishlog that include ESI request.

varnishlog(include ESI)


   13 BackendOpen  b default 192.168.1.199 36011 192.168.1.199 81  ★Open backend here.
   13 TxRequest    b GET
   13 TxURL        b /test2.html
   13 TxProtocol   b HTTP/1.1
   13 TxHeader     b User-Agent: Wget/1.12 (linux-gnu)
   13 TxHeader     b Accept: */*
   13 TxHeader     b Host: 192.168.1.199:6081
   13 TxHeader     b X-Varnish: 171551254
   13 TxHeader     b Accept-Encoding: gzip
   13 RxProtocol   b HTTP/1.1
   13 RxStatus     b 200
   13 RxResponse   b OK
   13 RxHeader     b Date: Sat, 28 Jan 2012 05:05:59 GMT
   13 RxHeader     b Server: Apache/2.2.15 (Scientific Linux)
   13 RxHeader     b Last-Modified: Sat, 23 Jul 2011 08:09:05 GMT
   13 RxHeader     b ETag: "5a28-51-4a8b8187f8177"
   13 RxHeader     b Accept-Ranges: bytes
   13 RxHeader     b Content-Length: 81
   13 RxHeader     b Connection: close
   13 RxHeader     b Content-Type: text/html; charset=UTF-8
   13 Fetch_Body   b 4(length) cls 0 mklen 1
   13 Length       b 81
   13 BackendClose b default  ★Close backend here.
   13 BackendOpen  b default 192.168.1.199 36012 192.168.1.199 81  ★Open backend for ESI request here.
   13 TxRequest    b GET
   13 TxURL        b /test3.html
   13 TxProtocol   b HTTP/1.1
   13 TxHeader     b User-Agent: Wget/1.12 (linux-gnu)
   13 TxHeader     b Accept: */*
   13 TxHeader     b Host: 192.168.1.199:6081
   13 TxHeader     b X-Varnish: 171551254
   13 TxHeader     b Accept-Encoding: gzip
   13 RxProtocol   b HTTP/1.1
   13 RxStatus     b 200
   13 RxResponse   b OK
   13 RxHeader     b Date: Sat, 28 Jan 2012 05:05:59 GMT
   13 RxHeader     b Server: Apache/2.2.15 (Scientific Linux)
   13 RxHeader     b Last-Modified: Sat, 23 Jul 2011 08:08:59 GMT
   13 RxHeader     b ETag: "5a29-14-4a8b81829c835"
   13 RxHeader     b Accept-Ranges: bytes
   13 RxHeader     b Content-Length: 20
   13 RxHeader     b Connection: close
   13 RxHeader     b Content-Type: text/html; charset=UTF-8
   13 Fetch_Body   b 4(length) cls 0 mklen 1
   13 Length       b 20
   13 BackendClose b default  ★Close backend here.
   12 SessionOpen  c 192.168.1.199 55115 :6081
   12 ReqStart     c 192.168.1.199 55115 171551254 ★Start Request (/test2.html)
   12 RxRequest    c GET
   12 RxURL        c /test2.html
   12 RxProtocol   c HTTP/1.0
   12 RxHeader     c User-Agent: Wget/1.12 (linux-gnu)
   12 RxHeader     c Accept: */*
   12 RxHeader     c Host: 192.168.1.199:6081
   12 RxHeader     c Connection: Keep-Alive
   12 VCL_call     c recv 1 7.1
   12 VCL_Log      c a
   12 VCL_trace    c 2 9.1
   12 VCL_Log      c b
   12 VCL_trace    c 3 11.1
   12 VCL_Log      c a
   12 VCL_return   c lookup
   12 VCL_call     c hash 18 85.5
   12 Hash         c /test2.html
   12 VCL_trace    c 19 87.9
   12 Hash         c 192.168.1.199:6081
   12 VCL_return   c hash
   12 VCL_call     c miss 22 99.5 fetch
   12 Backend      c 13 default default ★Call backend.
   12 TTL          c 171551254 RFC 120 -1 -1 1327727160 0 1327727159 0 0
   12 VCL_call     c fetch 4 18.1 deliver
   12 ObjProtocol  c HTTP/1.1
   12 ObjResponse  c OK
   12 ObjHeader    c Date: Sat, 28 Jan 2012 05:05:59 GMT
   12 ObjHeader    c Server: Apache/2.2.15 (Scientific Linux)
   12 ObjHeader    c Last-Modified: Sat, 23 Jul 2011 08:09:05 GMT
   12 ObjHeader    c ETag: "5a28-51-4a8b8187f8177"
   12 ObjHeader    c Content-Type: text/html; charset=UTF-8
   12 VCL_call     c deliver 26 116.5 deliver
   12 TxProtocol   c HTTP/1.1
   12 TxStatus     c 200
   12 TxResponse   c OK
   12 TxHeader     c Server: Apache/2.2.15 (Scientific Linux)
   12 TxHeader     c Last-Modified: Sat, 23 Jul 2011 08:09:05 GMT
   12 TxHeader     c ETag: "5a28-51-4a8b8187f8177"
   12 TxHeader     c Content-Type: text/html; charset=UTF-8
   12 TxHeader     c Date: Sat, 28 Jan 2012 05:05:59 GMT
   12 TxHeader     c X-Varnish: 171551254
   12 TxHeader     c Age: 0
   12 TxHeader     c Via: 1.1 varnish
   12 TxHeader     c Connection: close
   12 VCL_call     c recv 1 7.1  ★Start ESI log.
   12 VCL_Log      c a
   12 VCL_trace    c 2 9.1
   12 VCL_Log      c b
   12 VCL_trace    c 3 11.1
   12 VCL_Log      c a
   12 VCL_return   c lookup
   12 VCL_call     c hash 18 85.5
   12 Hash         c /test3.html
   12 VCL_trace    c 19 87.9
   12 Hash         c 192.168.1.199:6081
   12 VCL_return   c hash
   12 VCL_call     c miss 22 99.5 fetch
   12 Backend      c 13 default default
   12 TTL          c 171551254 RFC 120 -1 -1 1327727160 0 1327727159 0 0
   12 VCL_call     c fetch 4 18.1 deliver
   12 ObjProtocol  c HTTP/1.1
   12 ObjResponse  c OK
   12 ObjHeader    c Date: Sat, 28 Jan 2012 05:05:59 GMT
   12 ObjHeader    c Server: Apache/2.2.15 (Scientific Linux)
   12 ObjHeader    c Last-Modified: Sat, 23 Jul 2011 08:08:59 GMT
   12 ObjHeader    c ETag: "5a29-14-4a8b81829c835"
   12 ObjHeader    c Content-Type: text/html; charset=UTF-8
   12 VCL_call     c deliver 26 116.5 deliver
   12 Length       c 20
   12 ReqEnd       c 171551254 1327727159.889132023 1327727159.890880346 -0.001736164 nan nan  ★Request end.
   12 SessionClose c EOF mode
   12 StatSess     c 192.168.1.199 55115 0 1 1 0 0 2 282 20
    0 CLI          - Rd ping
    0 CLI          - Wr 200 19 PONG 1327727160 1.0

little too difficult for me.
Therefore, I tried to make a tool to format and display.

varnishlog | php vltrans.php


client ip           | 192.168.1.199
client request host | 192.168.1.199:6081
client request url  | /test2.html
response size       | 20 byte
response status     | HTTP/1.1 200 OK
Total time          | 0.0017483234405518 sec
restart count       | 0
ESI count           | 1
call backend        | 2 default(192.168.1.199:81) default(192.168.1.199:81)
Cache               | HIT:0 MISS:2
------------------------------------------------------------
-------------------
|      recv       |
-------------------
         |
         | trace  | vrt_count:1 vcl_line:7 vcl_pos:1
         | log    | a
         | trace  | vrt_count:2 vcl_line:9 vcl_pos:1
         | log    | b
         | trace  | vrt_count:3 vcl_line:11 vcl_pos:1
         | log    | a
         |        |
         | return | lookup
         |
-------------------
|      hash       |
-------------------
         |
         | trace  | vrt_count:18 vcl_line:85 vcl_pos:5
         | trace  | vrt_count:19 vcl_line:87 vcl_pos:9
         |        |
         | hash   | /test2.html + 192.168.1.199:6081
         | return | hash
         |
-------------------
|      miss       |
-------------------
         |
         | trace  | vrt_count:22 vcl_line:99 vcl_pos:5
         |        |
         | return | fetch
         |
-------------------
|      fetch      |
-------------------
         |
         | trace  | vrt_count:4 vcl_line:18 vcl_pos:1
         |        |
         | return | deliver
         |
-------------------
|     deliver     |
-------------------
         |
         | trace  | vrt_count:26 vcl_line:116 vcl_pos:5
         |        |
         | return | deliver
         |
 <<ESI request>>
-------------------
|      recv       |
-------------------
         |
         | trace  | vrt_count:1 vcl_line:7 vcl_pos:1
         | log    | a
         | trace  | vrt_count:2 vcl_line:9 vcl_pos:1
         | log    | b
         | trace  | vrt_count:3 vcl_line:11 vcl_pos:1
         | log    | a
         |        |
         | return | lookup
         |
-------------------
|      hash       |
-------------------
         |
         | trace  | vrt_count:18 vcl_line:85 vcl_pos:5
         | trace  | vrt_count:19 vcl_line:87 vcl_pos:9
         |        |
         | hash   | /test3.html + 192.168.1.199:6081
         | return | hash
         |
-------------------
|      miss       |
-------------------
         |
         | trace  | vrt_count:22 vcl_line:99 vcl_pos:5
         |        |
         | return | fetch
         |
-------------------
|      fetch      |
-------------------
         |
         | trace  | vrt_count:4 vcl_line:18 vcl_pos:1
         |        |
         | return | deliver
         |
-------------------
|     deliver     |
-------------------
         |
         | trace  | vrt_count:26 vcl_line:116 vcl_pos:5
         |        |
         | return | deliver
         |


############################################################
variable infomation.
     |
hash | /test2.html + 192.168.1.199:6081
------------------------------------------------------------
client.ip | 192.168.1.199

------------------------------------------------------------
req.request         | GET
req.url             | /test2.html
req.proto           | HTTP/1.0
req.http.User-Agent | Wget/1.12 (linux-gnu)
req.http.Accept     | */*
req.http.Host       | 192.168.1.199:6081
req.http.Connection | Keep-Alive

------------------------------------------------------------
bereq.request              | GET
bereq.url                  | /test2.html
bereq.proto                | HTTP/1.1
bereq.http.User-Agent      | Wget/1.12 (linux-gnu)
bereq.http.Accept          | */*
bereq.http.Host            | 192.168.1.199:6081
bereq.http.X-Varnish       | 171551254
bereq.http.Accept-Encoding | gzip

------------------------------------------------------------
beresp.proto               | HTTP/1.1
beresp.status              | 200
beresp.response            | OK
beresp.http.Date           | Sat, 28 Jan 2012 05:05:59 GMT
beresp.http.Server         | Apache/2.2.15 (Scientific Linux)
beresp.http.Last-Modified  | Sat, 23 Jul 2011 08:09:05 GMT
beresp.http.ETag           | "5a28-51-4a8b8187f8177"
beresp.http.Accept-Ranges  | bytes
beresp.http.Content-Length | 81
beresp.http.Connection     | close
beresp.http.Content-Type   | text/html; charset=UTF-8

------------------------------------------------------------
obj.proto              | HTTP/1.1
obj.response           | OK
obj.http.Date          | Sat, 28 Jan 2012 05:05:59 GMT
obj.http.Server        | Apache/2.2.15 (Scientific Linux)
obj.http.Last-Modified | Sat, 23 Jul 2011 08:09:05 GMT
obj.http.ETag          | "5a28-51-4a8b8187f8177"
obj.http.Content-Type  | text/html; charset=UTF-8

------------------------------------------------------------
resp.proto              | HTTP/1.1
resp.status             | 200
resp.response           | OK
resp.http.Server        | Apache/2.2.15 (Scientific Linux)
resp.http.Last-Modified | Sat, 23 Jul 2011 08:09:05 GMT
resp.http.ETag          | "5a28-51-4a8b8187f8177"
resp.http.Content-Type  | text/html; charset=UTF-8
resp.http.Date          | Sat, 28 Jan 2012 05:05:59 GMT
resp.http.X-Varnish     | 171551254
resp.http.Age           | 0
resp.http.Via           | 1.1 varnish
resp.http.Connection    | close

############################################################
variable infomation.
     |
ESI  | yes
hash | /test3.html + 192.168.1.199:6081
------------------------------------------------------------
bereq.request              | GET
bereq.url                  | /test3.html
bereq.proto                | HTTP/1.1
bereq.http.User-Agent      | Wget/1.12 (linux-gnu)
bereq.http.Accept          | */*
bereq.http.Host            | 192.168.1.199:6081
bereq.http.X-Varnish       | 171551254
bereq.http.Accept-Encoding | gzip

------------------------------------------------------------
beresp.proto               | HTTP/1.1
beresp.status              | 200
beresp.response            | OK
beresp.http.Date           | Sat, 28 Jan 2012 05:05:59 GMT
beresp.http.Server         | Apache/2.2.15 (Scientific Linux)
beresp.http.Last-Modified  | Sat, 23 Jul 2011 08:08:59 GMT
beresp.http.ETag           | "5a29-14-4a8b81829c835"
beresp.http.Accept-Ranges  | bytes
beresp.http.Content-Length | 20
beresp.http.Connection     | close
beresp.http.Content-Type   | text/html; charset=UTF-8

------------------------------------------------------------
obj.proto              | HTTP/1.1
obj.response           | OK
obj.http.Date          | Sat, 28 Jan 2012 05:05:59 GMT
obj.http.Server        | Apache/2.2.15 (Scientific Linux)
obj.http.Last-Modified | Sat, 23 Jul 2011 08:08:59 GMT
obj.http.ETag          | "5a29-14-4a8b81829c835"
obj.http.Content-Type  | text/html; charset=UTF-8

############################################################
############################################################
############################################################

I think so understood without explanation.

function summary.

show request summary


client ip           | 192.168.1.199
client request host | 192.168.1.199:6081
client request url  | /test2.html
response size       | 20 byte
response status     | HTTP/1.1 200 OK
Total time          | 0.0017483234405518 sec
restart count       | 0
ESI count           | 1
call backend        | 2 default(192.168.1.199:81) default(192.168.1.199:81)
Cache               | HIT:0 MISS:2
------------------------------------------------------------

show execution sequence


 <<ESI request>>  ★ESI or restart work is display here.
-------------------
|      recv       | ★call action name
-------------------
         |
         | trace  | vrt_count:1 vcl_line:7 vcl_pos:1
         | log    | a
         | trace  | vrt_count:2 vcl_line:9 vcl_pos:1
         | log    | b
         | trace  | vrt_count:3 vcl_line:11 vcl_pos:1
         | log    | a
         |        |
         | return | lookup  ★return value

show variable


variable infomation.
     |
ESI  | yes ★ESI or restart work is display here.
hash | /test3.html + 192.168.1.199:6081 ★this request used hash value.
------------------------------------------------------------
bereq.request              | GET
bereq.url                  | /test3.html
bereq.proto                | HTTP/1.1

I’m not quite satisfied with the code.
But, it may useful.

download here.
varnishlogTrans

日本語版はこっち


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