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我是 Play/Scala/ReactiveMongo 堆栈的新手，正在努力理解我在日志中看到的 [警告]，看看我是否能弄清楚如何解决它或让它消失。问题在于在 replset 上使用 ReactiveMongo。出于某种原因，在应用程序启动时，驱动程序会记录以下令人不安的 [警告]...

[debug] play - Plugin [play.api.cache.EhCachePlugin] is disabled
[info] application - ReactiveMongoPlugin starting...
[info] application - ReactiveMongoPlugin successfully started with db 'reactivemongo_app'! Servers:
        [cheetah1.local:27017]
        [cheetah2.local:27018]
[info] play - Application started (Dev)
[warn] r.api.Failover - Got an error, retrying... (try #1 is scheduled in 500 ms)
reactivemongo.core.actors.Exceptions$PrimaryUnavailableException$: MongoError['No primary node is available!']
    at reactivemongo.core.actors.Exceptions$PrimaryUnavailableException$.<clinit>(actors.scala) ~[reactivemongo_2.10-0.9.jar:0.9]
    at reactivemongo.core.actors.MongoDBSystem$$anonfun$pickChannel$5.apply(actors.scala:385) ~[reactivemongo_2.10-0.9.jar:0.9]
    at reactivemongo.core.actors.MongoDBSystem$$anonfun$pickChannel$5.apply(actors.scala:385) ~[reactivemongo_2.10-0.9.jar:0.9]
    at scala.Option.toRight(Option.scala:280) ~[scala-library.jar:na]
    at reactivemongo.core.actors.MongoDBSystem.pickChannel(actors.scala:385) ~[reactivemongo_2.10-0.9.jar:0.9]
    at reactivemongo.core.actors.MongoDBSystem$$anonfun$receive$1.applyOrElse(actors.scala:154) ~[reactivemongo_2.10-0.9.jar:0.9]
[info] a.e.s.Slf4jEventHandler - Slf4jEventHandler started
[debug] play - java.nio.channels.ClosedChannelException
[info] application - Checked index, result is Success(true)

使用 Mongo shell 检查 replSet 本身并没有发现问题，并且应用程序运行良好。我相当肯定这些例外是“误报”。

我的 conf/application.conf 就像

# Simple configuration (by URI)
# The URI syntax supports the following format: mongodb://[username:password@]host1[:port1][,hostN[:portN]]/dbName
mongodb.uri = "mongodb://cheetah1.local:27017,cheetah2.local:27018/reactivemongo_app"

appDependency 是

val appDependencies = Seq("org.reactivemongo" %% "play2-reactivemongo" % "0.9")

有一个 conf/play.plugins 文件

400:play.modules.reactivemongo.ReactiveMongoPlugin

该应用程序本身从启动开始运行良好，读取和写入 Mongo 文档没有问题。这就是为什么我断言早期 [警告] 是“误报”。这个警告正常吗？我能做些什么让它消失吗？

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1 回答 1

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这似乎是“这里的正常噪音”： https ://groups.google.com/d/msg/reactivemongo/orwHB09OW58/IUhODHcmmI8J

它只是一个 [警告] 而不是 [错误]，基础设施会立即恢复。“街上的话”是不要担心，所以我不会。

于 2013-06-21T19:08:04.457 回答