playframework - "Database ' 默认 ' is in inconsistent state!"来来去去

Question

我的问题是部署的服务器上的 Play 数据库演变一次又一次地处于不一致状态。我不明白有什么问题。

所有测试工作正常(在内存中)

我可以通过运行(在内存中)

启动应用程序

我删除了evolution sql-script，让它重新生成(通过点击浏览器的evolution trigger)

我在 conf 文件中为 mysql 访问切换了必要的属性

我用 play clean compile stage 开始构建

我删除并创建了 mysql 数据库

然后我用 -DapplyEvolutions.default=true

启动应用程序

我经常收到这个错误:

[error] play - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'sequence life_cycle_event_seq' at line 1 [ERROR:1064, SQLSTATE:42000]
Oops, cannot start the server.
@6epm5i5m6: Database 'default' is in inconsistent state!
    at play.api.db.evolutions.Evolutions$.checkEvolutionsState(Evolutions.scala:177)
    at play.api.db.evolutions.Evolutions$.applyScript(Evolutions.scala:275)
    at play.api.db.evolutions.EvolutionsPlugin$$anonfun$onStart$1$$anonfun$apply$1.apply$mcV$sp(Evolutions.scala:446)
    at play.api.db.evolutions.EvolutionsPlugin.withLock(Evolutions.scala:483)
    at play.api.db.evolutions.EvolutionsPlugin$$anonfun$onStart$1.apply(Evolutions.scala:439)
    at play.api.db.evolutions.EvolutionsPlugin$$anonfun$onStart$1.apply(Evolutions.scala:437)
    at scala.collection.immutable.List.foreach(List.scala:309)
    at play.api.db.evolutions.EvolutionsPlugin.onStart(Evolutions.scala:437)
    at play.api.Play$$anonfun$start$1$$anonfun$apply$mcV$sp$1.apply(Play.scala:63)
    at play.api.Play$$anonfun$start$1$$anonfun$apply$mcV$sp$1.apply(Play.scala:63)
    at scala.collection.immutable.List.foreach(List.scala:309)
    at play.api.Play$$anonfun$start$1.apply$mcV$sp(Play.scala:63)
    at play.api.Play$$anonfun$start$1.apply(Play.scala:63)
    at play.api.Play$$anonfun$start$1.apply(Play.scala:63)
    at play.utils.Threads$.withContextClassLoader(Threads.scala:18)
    at play.api.Play$.start(Play.scala:62)
    at play.core.StaticApplication.<init>(ApplicationProvider.scala:54)
    at play.core.server.NettyServer$.createServer(NettyServer.scala:228)
    at play.core.server.NettyServer$$anonfun$main$5.apply(NettyServer.scala:259)
    at play.core.server.NettyServer$$anonfun$main$5.apply(NettyServer.scala:258)
    at scala.Option.map(Option.scala:145)
    at play.core.server.NettyServer$.main(NettyServer.scala:258)
    at play.core.server.NettyServer.main(NettyServer.scala)

在玩弄整个过程后，它突然起作用了。

Answer 1

您应该生成进化脚本 后 您将配置切换到 mysql。

生成的脚本依赖于 RDBMS。在启动之前，它需要使用正确的数据库引擎创建 play clean compile stage