ワニスは1秒後に待つのをやめます。

Question

この問題は私を狂わせさせるでしょう：私のワニスは、ちょうど1秒後にバックエンド応答を待つのをやめます。

ここ

backend default {   # Define one backend 
.host = "127.0.0.1";  # IP or Hostname of backend 
.port = "8080";   # Port Apache or whatever is listening 
.probe = { 
    .url = "/"; 
    .timeout = 1s; 
    .interval = 1s; 
    .window = 10; 
    .threshold = 8; 
    } 
    .first_byte_timeout  = 60s; # How long to wait before we receive a first byte from our backend? 
    .connect_timeout  = 60s;  # How long to wait for a backend connection? 
    .between_bytes_timeout = 60s;  # How long to wait between bytes received from our backend? 
} 

は、ログ内の1つの呼び出しです：

DAEMON_OPTS="-a :80 \ 
     -T localhost:6082 \ 
     -f /etc/varnish/default.vcl \ 
     -S /etc/varnish/secret \ 
     -p thread_pool_add_delay=2 \ 
     -p thread_pools=4 \ 
     -p thread_pool_min=200 \ 
     -p thread_pool_max=4000 \ 
     -p timeout_linger=50 \ 
     -p connect_timeout=300 \ 
     -p first_byte_timeout=300 \ 
     -p between_bytes_timeout=300 \ 
     -p send_timeout=900 \ 
     -s malloc,3G" 

とVCLのバックエンド： ページを表示するごとに最初の呼び出しは

デーモンはこのように構成されている503のバックエンドである

* <<Request>> 3440734 
- Begin   req 3440733 rxreq 
- Timestamp  Start: 1462781837.623325 0.000000 0.000000 
- Timestamp  Req: 1462781837.623325 0.000000 0.000000 
- ReqStart  10.20.129.118 58572 
- ReqMethod  GET 
- ReqURL   xxxxx.html 
- ReqProtocol HTTP/1.1 
- ReqHeader  Accept: image/jpeg, application/x-ms-application, image/gif, application/xaml+xml, image/pjpeg, application/x-ms-xbap, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, image/pjpeg, application/x-shockwave-flash, */* 
- ReqHeader  Referer: http://xxxxxx.html 
- ReqHeader  Accept-Language: it-IT 
- ReqHeader  User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Trident/7.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E) 
- ReqHeader  Accept-Encoding: gzip, deflate 
- ReqHeader  Host: xxxxxx 
- ReqHeader  DNT: 1 
- ReqHeader  Connection: Keep-Alive 
- ReqHeader  Cookie: fc_uid=p; __utma=127650066.830977012.1423064118.1426582505.1426588086.20; _ga=GA1.3.830977012.1423064118; _gat_UA-13041322-1=1; ZNPCQ003-38303300=71a0f671; ff607e18ab6c715f4bb35b5bbcbe1c56=d82989olp2v0ur3gpl2ouprko6; _ga=GA1.2.830977012.142306411 
- ReqHeader  X-Forwarded-For: 10.20.129.118 
- VCL_call  RECV 
- ReqUnset  Host: xxx 
- ReqHeader  Host: xxx 
- ReqURL   /xxxx.html 
- ReqUnset  Cookie: fc_uid=p; __utma=127650066.830977012.1423064118.1426582505.1426588086.20; _ga=GA1.3.830977012.1423064118; _gat_UA-13041322-1=1; ZNPCQ003-38303300=71a0f671; ff607e18ab6c715f4bb35b5bbcbe1c56=d82989olp2v0ur3gpl2ouprko6; _ga=GA1.2.830977012.142306411 
- ReqHeader  Cookie: fc_uid=p; __utma=127650066.830977012.1423064118.1426582505.1426588086.20; _ga=GA1.3.830977012.1423064118; _gat_UA-13041322-1=1; ZNPCQ003-38303300=71a0f671; ff607e18ab6c715f4bb35b5bbcbe1c56=d82989olp2v0ur3gpl2ouprko6; _ga=GA1.2.830977012.142306411 
- ReqUnset  Cookie: fc_uid=p; __utma=127650066.830977012.1423064118.1426582505.1426588086.20; _ga=GA1.3.830977012.1423064118; _gat_UA-13041322-1=1; ZNPCQ003-38303300=71a0f671; ff607e18ab6c715f4bb35b5bbcbe1c56=d82989olp2v0ur3gpl2ouprko6; _ga=GA1.2.830977012.142306411 
- ReqHeader  Cookie: fc_uid=p; __utma=127650066.830977012.1423064118.1426582505.1426588086.20; _ga=GA1.3.830977012.1423064118; _gat_UA-13041322-1=1; ZNPCQ003-38303300=71a0f671; ff607e18ab6c715f4bb35b5bbcbe1c56=d82989olp2v0ur3gpl2ouprko6; _ga=GA1.2.830977012.142306411 
- ReqHeader  Surrogate-Capability: key=ESI/1.0 
- VCL_return  hash 
- ReqUnset  Accept-Encoding: gzip, deflate 
- ReqHeader  Accept-Encoding: gzip 
- VCL_call  HASH 
- VCL_return  lookup 
- VCL_call  MISS 
- VCL_return  fetch 
- Link   bereq 3440735 fetch 
- Timestamp  Fetch: 1462781838.492085 0.868760 0.868760 
- Timestamp  Process: 1462781838.492101 0.868776 0.000016 
- RespHeader  Date: Mon, 09 May 2016 08:17:18 GMT 
- RespHeader  Server: Varnish 
- RespHeader  X-Varnish: 3440734 
- RespProtocol HTTP/1.1 
- RespStatus  503 
- RespReason  Service Unavailable 
- RespReason  Service Unavailable 
- VCL_call  SYNTH 
- VCL_return  deliver 
- RespHeader  Content-Length: 0 
- Storage  malloc Transient 
- Debug   "RES_MODE 2" 
- RespHeader  Connection: keep-alive 
- Timestamp  Resp: 1462781838.492145 0.868820 0.000044 
- ReqAcct  985 0 985 153 0 153 
- End 

貴重なご助力はありますか？提案？

Answer 1

はかなり確信して問題はここにある：それらのすべてが1秒= 1秒の時間を持って

.timeout = 1s; 
.interval = 1s; 

注意してください。 バックエンドのプローブタイムアウトが起きていると思うので、ワニスは、バックエンドが2秒以内に応答するまで、「不健全」と警告します。

これらの値を変更して問題が発生していないかどうかを確認してください。