[logback-user] LoggerInitializationException - logger timing out in Play application

[Ceki Gulcu]

It looks like an Akka issue or more accurately your question requires a 
level of knowledge in Akka which I personally do not have.

On 5/13/2016 11:15, Suraj Mundada wrote:
> Hi,
>
> I am using Play 2.4.6 on CentOS 6 server with Java 8 for deploying
> production application. I am using logback logging in Akka actors for
> doing my async tasks and sending email is one the tasks.
>
>  From last 2 days, I am getting following exception:
>
> |akka.ConfigurationException:Couldnot start logger due to
> [akka.ConfigurationException:Logger specified in config can't be loaded
> [akka.event.Logging$DefaultLogger] due to
> [akka.event.Logging$LoggerInitializationException: Logger
> log1-Logging$DefaultLogger did not respond with LoggerInitialized, sent
> instead [TIMEOUT]]]
> at akka.event.LoggingBus$class.startDefaultLoggers(Logging.scala:144)
> at akka.event.EventStream.startDefaultLoggers(EventStream.scala:26)
> at akka.actor.LocalActorRefProvider.init(ActorRefProvider.scala:623)
> at akka.actor.ActorSystemImpl.liftedTree2$1(ActorSystem.scala:620)
> at akka.actor.ActorSystemImpl._start$lzycompute(ActorSystem.scala:617)
> at akka.actor.ActorSystemImpl._start(ActorSystem.scala:617)
> at akka.actor.ActorSystemImpl.start(ActorSystem.scala:634)
> at akka.actor.ActorSystem$.apply(ActorSystem.scala:142)
> at akka.actor.ActorSystem$.apply(ActorSystem.scala:109)
> at akka.actor.ActorSystem$.create(ActorSystem.scala:57)
> at akka.actor.ActorSystem.create(ActorSystem.scala)
> at manager.EmailManager.sendHtmlEmail(EmailManager.java:63) at|
>
> My application.conf has below entry:
>
> |
> akka {
>          loggers = ["akka.event.slf4j.Slf4jLogger"]
>          loglevel = "DEBUG"
>          logging-filter = "akka.event.slf4j.Slf4jLoggingFilter"
>          event-handlers = ["akka.event.slf4j.Slf4jEventHandler"]
>          default-dispatcher {
>                  fork-join-executor {
>                          parallelism-min = 8
>                                  }
>                  }
> }
> |
>
>
> logback.xml has following entries apart from other appender and logger
> declarations:
>
> |
>     <logger name="play" level="INFO" />
>     <logger name="application" level="DEBUG" />
>     <logger name="akka" level="INFO" />
>
> |
>
> However, I do not use akka logger reference defined above anywhere in my
> code. Instead, I use default logger configuration where timeout is
> happening:
>
> |
>   Logger.debug("EmailActor - onReceive() : MultiPartEmail message to
> xyz at abc.com <mailto:xyz at abc.com>");
>
> |
>
> Each time timeout happens, I have to restart my play application.
>
> Is it hardware issue which is restricting threads available for creating
> new actor instances or causing timeout for logger? or something else?
>
> My production box is 1 Core 4 GB with CentOS 6 and play application runs
> within a docker on this box.
>
> Regards,
> Suraj
>