使用 nginx 更新到 Rails 3.1.0.rc5 后，Passenger 出现间歇性 502 错误 [英] After updating to Rails 3.1.0.rc5 Passenger with nginx has intermittent 502 errors

问题描述

似乎只有一个乘客实例服务于请求，其他的只是服务于 502 错误.这会导致间歇性错误模式，因为只有定向到第二个实例的请求会失败.

It appears that only one passenger instance serves requests, the others just serve 502 errors. This causes an intermittent error pattern because only the requests that are directed to the second instance fail.

~$ rvmsudo passenger-status
----------- General information -----------
max      = 4
count    = 2
active   = 0
inactive = 2
Waiting on global queue: 0

----------- Application groups -----------
/u/apps/pixie.strd6.com/current:
  App root: /u/apps/pixie.strd6.com/current
  * PID: 3179    Sessions: 0    Processed: 121     Uptime: 3m 57s
  * PID: 3762    Sessions: 0    Processed: 0       Uptime: 2s

这是在更新到 Rails 3.1.0 rc5 后发生的

This happened after updating to Rails 3.1.0 rc5

2011/07/27 21:37:37 [error] 3125#0: *608 upstream prematurely closed connection while reading response header from upstream, client: 68.226.71.148, server: pixieengine.com, request: "GET /chats/recent HTTP/1.1", upstream: "passenger:unix:/passenger_helper_server:", host: "pixieengine.com", referrer: "http://pixieengine.com/projects/426/ide"
2011/07/27 21:38:31 [error] 3125#0: *596 upstream prematurely closed connection while reading response header from upstream, client: 76.102.14.57, server: pixieengine.com, request: "GET /chats/recent HTTP/1.1", upstream: "passenger:unix:/passenger_helper_server:", host: "pixieengine.com", referrer: "http://pixieengine.com/pixel-editor"
2011/07/27 21:39:12 [error] 3125#0: *576 upstream prematurely closed connection while reading response header from upstream, client: 68.8.173.234, server: pixieengine.com, request: "GET /chats/recent HTTP/1.1", upstream: "passenger:unix:/passenger_helper_server:", host: "pixieengine.com", referrer: "http://pixieengine.com/community/forums/1"
2011/07/27 21:39:12 [error] 3125#0: *687 upstream prematurely closed connection while reading response header from upstream, client: 201.231.103.247, server: pixieengine.com, request: "GET /chats/active_users HTTP/1.1", upstream: "passenger:unix:/passenger_helper_server:", host: "pixieengine.com", referrer: "http://pixieengine.com/projects/demo/ide"
2011/07/27 21:39:12 [error] 3125#0: *686 upstream prematurely closed connection while reading response header from upstream, client: 201.231.103.247, server: pixieengine.com, request: "GET /chats/recent HTTP/1.1", upstream: "passenger:unix:/passenger_helper_server:", host: "pixieengine.com", referrer: "http://pixieengine.com/projects/demo/ide"

推荐答案

我通过切换到 Unicorn 解决了这个问题.

I solved this by switching to Unicorn.

我实际上无法弄清楚如何修复乘客，但我能够验证它是否因为从 Rails 3.0.9 到 3.1.0.rc5 的过渡而损坏.

I wasn't actually able to figure out how to fix passenger, but I was able to verify that it broke because of the transition from Rails 3.0.9 to 3.1.0.rc5.

这篇关于使用 nginx 更新到 Rails 3.1.0.rc5 后，Passenger 出现间歇性 502 错误的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！