Question

新手来自Heroku。

我已经完成了这里描述的动作：

http://www.playframework.org/documentation/2.0.2/ScalaTodoList

我已经设法在Heroku上设置了一个简单的Play应用程序。接下来，我尝试上传我在我自己的工作站上开发的主应用程序，通过与之前相同的步骤。上传和编译工作，但应用程序不断崩溃代码255.这是日志：

2012-08-21T19:07:29+00:00 heroku[slugc]: Slug compilation started
2012-08-21T19:10:18+00:00 heroku[api]: Attach HEROKU_POSTGRESQL_GOLD resource by heroku-postgresql@addons.heroku.com
2012-08-21T19:10:18+00:00 heroku[api]: Release v2 created by heroku-postgresql@addons.heroku.com
2012-08-21T19:10:18+00:00 heroku[api]: Add DATABASE_URL config by email@gmail.com
2012-08-21T19:10:18+00:00 heroku[api]: Release v3 created by email@gmail.com
2012-08-21T19:10:18+00:00 heroku[api]: Add SBT_OPTS, PATH, REPO, JAVA_OPTS config by b.panait@gmail.com
2012-08-21T19:10:18+00:00 heroku[api]: Release v4 created by email@gmail.com
2012-08-21T19:10:18+00:00 heroku[api]: Release v5 created by email@gmail.com
2012-08-21T19:10:18+00:00 heroku[api]: Deploy 40c5224 by email@gmail.com
2012-08-21T19:10:19+00:00 heroku[slugc]: Slug compilation finished
2012-08-21T19:10:25+00:00 heroku[web.1]: Starting process with command `target/start -Dhttp.port=28820 -Xmx384m -Xss512k
 -XX:+UseCompressedOops`
2012-08-21T19:10:26+00:00 app[web.1]: This application is already running (Or delete the RUNNING_PID file).
2012-08-21T19:10:27+00:00 heroku[web.1]: Process exited with status 255
2012-08-21T19:10:27+00:00 heroku[web.1]: State changed from starting to crashed
2012-08-21T19:10:27+00:00 heroku[web.1]: State changed from crashed to starting
2012-08-21T19:10:30+00:00 heroku[web.1]: Starting process with command `target/start -Dhttp.port=21120 -Xmx384m -Xss512k
 -XX:+UseCompressedOops`
2012-08-21T19:10:31+00:00 app[web.1]: This application is already running (Or delete the RUNNING_PID file).
2012-08-21T19:10:32+00:00 heroku[web.1]: Process exited with status 255
2012-08-21T19:10:32+00:00 heroku[web.1]: State changed from starting to crashed
2012-08-21T19:32:43+00:00 heroku[web.1]: State changed from crashed to starting
2012-08-21T19:32:47+00:00 heroku[web.1]: Starting process with command `target/start -Dhttp.port=35227 -Xmx384m -Xss512k
 -XX:+UseCompressedOops`
2012-08-21T19:32:48+00:00 app[web.1]: This application is already running (Or delete the RUNNING_PID file).
2012-08-21T19:32:49+00:00 heroku[web.1]: Process exited with status 255
2012-08-21T19:32:49+00:00 heroku[web.1]: State changed from starting to crashed
2012-08-21T19:33:09+00:00 heroku[web.1]: State changed from crashed to starting
2012-08-21T19:33:13+00:00 heroku[web.1]: Starting process with command `target/start -Dhttp.port=3275 -Xmx384m -Xss512k
-XX:+UseCompressedOops`
2012-08-21T19:33:14+00:00 app[web.1]: This application is already running (Or delete the RUNNING_PID file).
2012-08-21T19:33:15+00:00 heroku[web.1]: Process exited with status 255
2012-08-21T19:33:16+00:00 heroku[web.1]: State changed from starting to crashed

我不知道从哪里开始调查。主应用程序非常大，有一些额外的依赖项并使用数据库。任何帮助表示赞赏。

EDIT1：好的，所以我从我的git存储库中删除了RUNNING_PID（从heroku中删除它并不起作用：https://devcenter.heroku.com/articles/ssh-access）。我还将我的procfile更新为：

web: target/start -Dhttp.port=${PORT} ${JAVA_OPTS} -DapplyEvolutions.default=true -Ddb.default.url=${DATABASE_URL} -Ddb.default.driver=org.h2.Driver

我现在收到以下错误：

2012-08-21T20:24:45+00:00 heroku[slugc]: Slug compilation finished
2012-08-21T20:24:48+00:00 heroku[web.1]: Starting process with command `target/start -Dhttp.port=38558 -Xmx384m -Xss512k
 -XX:+UseCompressedOops`
2012-08-21T20:24:51+00:00 app[web.1]: Play server process ID is 2
2012-08-21T20:24:57+00:00 app[web.1]: [←[37minfo←[0m] play - database [default] connected at jdbc:h2:mem:play
2012-08-21T20:24:58+00:00 app[web.1]: [←[33mwarn←[0m] play - Your production database [default] needs evolutions!
2012-08-21T20:24:58+00:00 app[web.1]:
2012-08-21T20:24:58+00:00 app[web.1]: # --- Rev:1,Ups - f9a96e0
...
Copy of the evolution file.
...
2012-08-21T20:24:58+00:00 app[web.1]:
2012-08-21T20:24:58+00:00 app[web.1]: [←[33mwarn←[0m] play - Run with -DapplyEvolutions.default=true if you want to run
them automatically (be careful)
2012-08-21T20:24:58+00:00 app[web.1]: Oops, cannot start the server.
2012-08-21T20:24:58+00:00 app[web.1]: PlayException: Database 'default' needs evolution! [An SQL script need to be run o
n your database.]
2012-08-21T20:24:58+00:00 app[web.1]:   at play.api.db.evolutions.EvolutionsPlugin$$anonfun$onStart$1.apply(Evolutions.s
cala:422)
2012-08-21T20:24:58+00:00 app[web.1]:   at play.api.db.evolutions.EvolutionsPlugin$$anonfun$onStart$1.apply(Evolutions.s
cala:410)
2012-08-21T20:24:58+00:00 app[web.1]:   at scala.collection.LinearSeqOptimized$class.foreach(LinearSeqOptimized.scala:59
)
2012-08-21T20:24:58+00:00 app[web.1]:   at scala.collection.immutable.List.foreach(List.scala:45)
2012-08-21T20:24:58+00:00 app[web.1]:   at play.api.db.evolutions.EvolutionsPlugin.onStart(Evolutions.scala:410)
2012-08-21T20:24:58+00:00 app[web.1]:   at play.api.Play$$anonfun$start$1.apply(Play.scala:60)
2012-08-21T20:24:58+00:00 app[web.1]:   at play.api.Play$$anonfun$start$1.apply(Play.scala:60)
2012-08-21T20:24:58+00:00 app[web.1]:   at scala.collection.LinearSeqOptimized$class.foreach(LinearSeqOptimized.scala:59
)
2012-08-21T20:24:58+00:00 app[web.1]:   at scala.collection.immutable.List.foreach(List.scala:45)
2012-08-21T20:24:58+00:00 app[web.1]:   at play.api.Play$.start(Play.scala:60)
2012-08-21T20:24:58+00:00 app[web.1]:   at play.core.StaticApplication.<init>(ApplicationProvider.scala:51)
2012-08-21T20:24:58+00:00 app[web.1]:   at play.core.server.NettyServer$.createServer(NettyServer.scala:132)
2012-08-21T20:24:58+00:00 app[web.1]:   at play.core.server.NettyServer$$anonfun$main$5.apply(NettyServer.scala:153)
2012-08-21T20:24:58+00:00 app[web.1]:   at play.core.server.NettyServer$$anonfun$main$5.apply(NettyServer.scala:152)
2012-08-21T20:24:58+00:00 app[web.1]:   at scala.Option.map(Option.scala:133)
2012-08-21T20:24:58+00:00 app[web.1]:   at play.core.server.NettyServer$.main(NettyServer.scala:152)
2012-08-21T20:24:58+00:00 app[web.1]:   at play.core.server.NettyServer.main(NettyServer.scala)
2012-08-21T20:25:00+00:00 heroku[web.1]: Process exited with status 255
2012-08-21T20:25:00+00:00 heroku[web.1]: State changed from starting to crashed

EDIT2：好的，我已经弄清楚如何解决这个问题。只需将applyEvolutions.default = true添加到application.conf，即可自动应用演进。您必须小心这一点，因为如果您在演变中设置了析构函数，它可能会破坏您的数据。

Answer 1

正如Alper正确地建议的那样，尝试将-Dplay.evolutions.db.default.autoApplyDowns = true添加到您的Procfile中。

它为我修好了。

Heroku应用程序失败，代码为255

1 个答案: