Heroku node.js应用程序在heroku打开时崩溃

Question

我在Heroku上遵循了“node.js入门”教程，没有任何问题，直到我尝试“heroku open”。heroku日志如下：

2015-09-06T01:40:57.721184+00:00 heroku[web.1]: State changed from crashed to starting
2015-09-06T01:41:03.369114+00:00 heroku[web.1]: Starting process with command `npm start`
2015-09-06T01:41:06.941642+00:00 app[web.1]: 
2015-09-06T01:41:06.941663+00:00 app[web.1]: > my-site@1.0.0 start /app
2015-09-06T01:41:06.941665+00:00 app[web.1]: > node server.js
2015-09-06T01:41:06.941666+00:00 app[web.1]: 
2015-09-06T01:41:12.745724+00:00 app[web.1]: events.js:85
2015-09-06T01:41:12.745730+00:00 app[web.1]:       throw er; // Unhandled 'error' event
2015-09-06T01:41:12.745731+00:00 app[web.1]:             ^
2015-09-06T01:41:12.745733+00:00 app[web.1]: Error: Redis connection to 127.0.0.1:6379 failed - connect ECONNREFUSED
2015-09-06T01:41:12.745734+00:00 app[web.1]:     at RedisClient.on_error (/app/node_modules/redis/index.js:185:24)
2015-09-06T01:41:12.745735+00:00 app[web.1]:     at Socket.<anonymous> (/app/node_modules/redis/index.js:95:14)
2015-09-06T01:41:12.745736+00:00 app[web.1]:     at Socket.emit (events.js:107:17)
2015-09-06T01:41:12.745737+00:00 app[web.1]:     at net.js:459:14
2015-09-06T01:41:12.745739+00:00 app[web.1]:     at process._tickCallback (node.js:355:11)
2015-09-06T01:41:12.789099+00:00 app[web.1]: npm ERR! argv "/app/.heroku/node/bin/node" "/app/.heroku/node/bin/npm" "start"
2015-09-06T01:41:12.782590+00:00 app[web.1]: 
2015-09-06T01:41:12.789353+00:00 app[web.1]: npm ERR! node v0.12.7
2015-09-06T01:41:12.790048+00:00 app[web.1]: npm ERR! npm  v2.11.3
2015-09-06T01:41:12.790211+00:00 app[web.1]: npm ERR! code ELIFECYCLE
2015-09-06T01:41:12.790403+00:00 app[web.1]: npm ERR! my-site@1.0.0 start: `node server.js`
2015-09-06T01:41:12.790668+00:00 app[web.1]: npm ERR! 
2015-09-06T01:41:12.790523+00:00 app[web.1]: npm ERR! Exit status 1
2015-09-06T01:41:12.790800+00:00 app[web.1]: npm ERR! Failed at the my-site@1.0.0 start script 'node server.js'.
2015-09-06T01:41:12.791028+00:00 app[web.1]: npm ERR! This is most likely a problem with the my-site package,
2015-09-06T01:41:12.791621+00:00 app[web.1]: npm ERR! Tell the author that this fails on your system:
2015-09-06T01:41:12.791492+00:00 app[web.1]: npm ERR! not with npm itself.
2015-09-06T01:41:12.791865+00:00 app[web.1]: npm ERR! You can get their info via:
2015-09-06T01:41:12.791747+00:00 app[web.1]: npm ERR!     node server.js
2015-09-06T01:41:12.791990+00:00 app[web.1]: npm ERR!     npm owner ls my-site
2015-09-06T01:41:12.792118+00:00 app[web.1]: npm ERR! There is likely additional logging output above.
2015-09-06T01:41:12.739572+00:00 app[web.1]: Listening on localhost: 6596
2015-09-06T01:41:12.794869+00:00 app[web.1]: 
2015-09-06T01:41:12.788632+00:00 app[web.1]: npm ERR! Linux 3.13.0-61-generic
2015-09-06T01:41:12.795086+00:00 app[web.1]: npm ERR! Please include the following file with any support request:
2015-09-06T01:41:12.795203+00:00 app[web.1]: npm ERR!     /app/npm-debug.log
2015-09-06T01:41:14.558203+00:00 heroku[web.1]: State changed from starting to crashed
2015-09-06T01:41:14.544183+00:00 heroku[web.1]: Process exited with status 1
2015-09-06T01:41:39+00:00 app[heroku-redis]: source=REDIS sample#active-connections=1 sample#load-avg-1m=0.065 sample#load-avg-5m=0.055 sample#load-avg-15m=0.045 sample#read-iops=0 sample#write-iops=0 sample#memory-total=15405664kB sample#memory-free=14101096kB sample#memory-cached=514208kB sample#memory-redis=294000bytes
2015-09-06T01:42:20+00:00 app[heroku-redis]: source=REDIS sample#active-connections=1 sample#load-avg-1m=0.085 sample#load-avg-5m=0.06 sample#load-avg-15m=0.05 sample#read-iops=0 sample#write-iops=0 sample#memory-total=15405664kB sample#memory-free=14101344kB sample#memory-cached=514208kB sample#memory-redis=294000bytes
2015-09-06T01:43:43+00:00 app[heroku-redis]: source=REDIS sample#active-connections=1 sample#load-avg-1m=0.05 sample#load-avg-5m=0.06 sample#load-avg-15m=0.045 sample#read-iops=0 sample#write-iops=0 sample#memory-total=15405664kB sample#memory-free=14101108kB sample#memory-cached=514208kB sample#memory-redis=294000bytes
2015-09-06T01:44:27+00:00 app[heroku-redis]: source=REDIS sample#active-connections=1 sample#load-avg-1m=0.02 sample#load-avg-5m=0.05 sample#load-avg-15m=0.045 sample#read-iops=0 sample#write-iops=0 sample#memory-total=15405664kB sample#memory-free=14101176kB sample#memory-cached=514212kB sample#memory-redis=294000bytes
2015-09-06T01:45:46+00:00 app[heroku-redis]: source=REDIS sample#active-connections=1 sample#load-avg-1m=0.005 sample#load-avg-5m=0.04 sample#load-avg-15m=0.04 sample#read-iops=0 sample#write-iops=0 sample#memory-total=15405664kB sample#memory-free=14101240kB sample#memory-cached=514212kB sample#memory-redis=294000bytes
2015-09-06T01:46:24+00:00 app[heroku-redis]: source=REDIS sample#active-connections=1 sample#load-avg-1m=0.035 sample#load-avg-5m=0.04 sample#load-avg-15m=0.04 sample#read-iops=0 sample#write-iops=0 sample#memory-total=15405664kB sample#memory-free=14100784kB sample#memory-cached=514212kB sample#memory-redis=294000bytes

问题出在Redis上，我没有使用它的经验。

Redis Heroku是作为一个插件安装的，当我在本地机器上运行npm start时，一切都运行正常。

以前有没有人遇到过这种情况，或者有什么想法？

Answer 1

您可能有一个在本地运行的redis服务器，但是您的Heroku实例将无法连接到您的本地redis实例，并且如果您在Heroku运行时使用相同的配置，它将在相同的端点上寻找某些东西(我猜是127.0.0.1端口3000或其他东西)。

https://devcenter.heroku.com/articles/heroku-redis

在Redis-to-Go上，你可以得到一个免费的/nano计划，你可以测试一下。http://redistogo.com/，只需远程连接即可。这是通过Heroku配置的另一种选择，我想我在几个月前就验证了这种方法是有效的。现在仍然应该是这样。

您可以使用foreman start now heroku local https://devcenter.heroku.com/articles/heroku-local在更接近部署环境的条件下在本地测试Heroku应用程序，并在process https://devcenter.heroku.com/articles/procfile上查看此内容