Varnish: Guru Thiền

Question

Tôi đang cài đặt Varnish sau Varnish 3.0.2 tài liệu

/etc/varnish/default.vcl

backend default { 
    .host = "127.0.0.1"; 
    .port = "80"; 
    .connect_timeout = 600s; 
    .first_byte_timeout = 600s; 
    .between_bytes_timeout = 600s; 
} 

lệnh trưa

sudo varnishd -f /etc/varnish/default.vcl -s malloc,200M -T 127.0.0.1:2000 -a 0.0.0.0:8080 

Tài liệu: https://www.varnish-cache.org/docs/3.0/tutorial/backend_servers.html

Tôi chỉ cố gắng để nghe trên: 8080, nhưng tôi nhận được lỗi này:

Varnishlog

[ps] $ varnishlog

0 CLI   - Rd ping 
    0 CLI   - Wr 200 19 PONG 1329118941 1.0 
    0 CLI   - Rd ping 
    0 CLI   - Wr 200 19 PONG 1329118944 1.0 
    0 CLI   - Rd ping 
    0 CLI   - Wr 200 19 PONG 1329118947 1.0 
    0 CLI   - Rd ping 
    0 CLI   - Wr 200 19 PONG 1329118950 1.0 
    0 CLI   - Rd ping 
    0 CLI   - Wr 200 19 PONG 1329118953 1.0 
    0 CLI   - Rd ping 
    0 CLI   - Wr 200 19 PONG 1329118956 1.0 
    0 CLI   - Rd ping 
    0 CLI   - Wr 200 19 PONG 1329118959 1.0 
    0 CLI   - Rd ping 
    0 CLI   - Wr 200 19 PONG 1329118962 1.0 
    11 SessionOpen c 173.245.49.79 20945 0.0.0.0:8080 
    11 ReqStart  c 173.245.49.79 20945 647832555 
    11 RxRequest c GET 
    11 RxURL  c/
    11 RxProtocol c HTTP/1.1 
    11 RxHeader  c Host: webtelevideo.com:8080 
    11 RxHeader  c Connection: Keep-Alive 
    11 RxHeader  c Accept-Encoding: gzip 
    11 RxHeader  c CF-Connecting-IP: 79.41.59.48 
    11 RxHeader  c CF-IPCountry: IT 
    11 RxHeader  c X-Forwarded-For: 79.41.59.48 
    11 RxHeader  c CF-Visitor: {"scheme":"http"} 
    11 RxHeader  c User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_3) AppleWebKit/535.11 (KHTML, like Gecko) Chrome/17.0.963.46 Safari/535.11 
    11 RxHeader  c Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 
    11 RxHeader  c Accept-Language: it-IT,it;q=0.8,en-US;q=0.6,en;q=0.4 
    11 RxHeader  c Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3 
    11 RxHeader  c Cookie: __cfduid=d1b65ec66cd2922d0e80af7bd912710f51327781669; mp_super_properties=%7B%22all%22%3A%20%7B%22%24initial_referrer%22%3A%20%22http%3A//www.google.it/url%3Fsa%3Dt%26rct%3Dj%26q%3D%26esrc%3Ds%26source%3Dweb%26cd%3D6%26ved%3D0CGUQFjAF%26url%3Dhttp 
    11 VCL_call  c recv pass 
    11 VCL_call  c hash 
    11 Hash   c/
    11 Hash   c webtelevideo.com:8080 
    11 VCL_return c hash 
    11 VCL_call  c pass pass 
    11 FetchError c no backend connection 
    11 VCL_call  c error deliver 
    11 VCL_call  c deliver deliver 
    11 TxProtocol c HTTP/1.1 
    11 TxStatus  c 503 
    11 TxResponse c Service Unavailable 
    11 TxHeader  c Server: Varnish 
    11 TxHeader  c Content-Type: text/html; charset=utf-8 
    11 TxHeader  c Retry-After: 5 
    11 TxHeader  c Content-Length: 418 
    11 TxHeader  c Accept-Ranges: bytes 
    11 TxHeader  c Date: Mon, 13 Feb 2012 07:42:43 GMT 
    11 TxHeader  c X-Varnish: 647832555 
    11 TxHeader  c Age: 0 
    11 TxHeader  c Via: 1.1 varnish 
    11 TxHeader  c Connection: close 
    11 Length  c 418 
    11 ReqEnd  c 647832555 1329118962.983350515 1329118963.179714441 0.043004036 0.196314096 0.000049829 
    11 SessionClose c error 
    11 StatSess  c 173.245.49.79 20945 0 1 1 0 1 0 256 418 
    11 SessionOpen c 173.245.49.79 9190 0.0.0.0:8080 
    11 ReqStart  c 173.245.49.79 9190 647832556 
    11 RxRequest c GET 
    11 RxURL  c /favicon.ico 
    11 RxProtocol c HTTP/1.0 
    11 RxHeader  c Host: webtelevideo.com:8080 
    11 RxHeader  c Connection: Keep-Alive 
    11 RxHeader  c Accept-Encoding: gzip 
    11 RxHeader  c CF-Connecting-IP: 79.41.59.48 
    11 RxHeader  c CF-IPCountry: IT 
    11 RxHeader  c X-Forwarded-For: 79.41.59.48 
    11 RxHeader  c CF-Visitor: {"scheme":"http"} 
    11 RxHeader  c Accept: */* 
    11 RxHeader  c User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_3) AppleWebKit/535.11 (KHTML, like Gecko) Chrome/17.0.963.46 Safari/535.11 
    11 RxHeader  c Accept-Language: it-IT,it;q=0.8,en-US;q=0.6,en;q=0.4 
    11 RxHeader  c Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3 
    11 RxHeader  c Cookie: __cfduid=d1b65ec66cd2922d0e80af7bd912710f51327781669; mp_super_properties=%7B%22all%22%3A%20%7B%22%24initial_referrer%22%3A%20%22http%3A//www.google.it/url%3Fsa%3Dt%26rct%3Dj%26q%3D%26esrc%3Ds%26source%3Dweb%26cd%3D6%26ved%3D0CGUQFjAF%26url%3Dhttp 
    11 VCL_call  c recv pass 
    11 VCL_call  c hash 
    11 Hash   c /favicon.ico 
    11 Hash   c webtelevideo.com:8080 
    11 VCL_return c hash 
    11 VCL_call  c pass pass 
    11 FetchError c no backend connection 
    11 VCL_call  c error deliver 
    11 VCL_call  c deliver deliver 
    11 TxProtocol c HTTP/1.1 
    11 TxStatus  c 503 
    11 TxResponse c Service Unavailable 
    11 TxHeader  c Server: Varnish 
    11 TxHeader  c Content-Type: text/html; charset=utf-8 
    11 TxHeader  c Retry-After: 5 
    11 TxHeader  c Content-Length: 418 
    11 TxHeader  c Accept-Ranges: bytes 
    11 TxHeader  c Date: Mon, 13 Feb 2012 07:42:43 GMT 
    11 TxHeader  c X-Varnish: 647832556 
    11 TxHeader  c Age: 0 
    11 TxHeader  c Via: 1.1 varnish 
    11 TxHeader  c Connection: close 
    11 Length  c 418 
    11 ReqEnd  c 647832556 1329118963.855353355 1329118963.855585337 0.000086069 0.000171423 0.000060558 
    11 SessionClose c error 
    11 StatSess  c 173.245.49.79 9190 0 1 1 0 1 0 256 418 
    0 CLI   - Rd ping 
    0 CLI   - Wr 200 19 PONG 1329118965 1.0 
    0 CLI   - Rd ping 
    0 CLI   - Wr 200 19 PONG 1329118968 1.0 

webtelevideo.com:80 hoạt động chính xác

Answer 1

Máy chủ back-end của bạn không hoạt động. Bạn đã định cấu hình máy chủ lưu trữ "127.0.0.1" nhưng phải sử dụng "173.245.60.43" (địa chỉ ip của webtelevideo.com).

Answer 2

Khi bạn thấy lỗi này có nghĩa là hầu hết các trường hợp phụ trợ của bạn bị hỏng. Được xác nhận bằng tin nhắn của bạn trong véc ni: Varnish log: 11 FetchError c no backend connection.

Kiểm tra máy chủ gốc của bạn đã hết và dịch vụ HTTP của bạn (Apache/Nginx/other) đang chạy.