From an `Actor` you can use `self` to get the `ActorRef`.

    val actorName = self.path.name

http://doc.akka.io/api/akka/2.2.3/#akka.actor.Actor

http://doc.akka.io/api/akka/2.2.3/#akka.actor.ActorRef

http://doc.akka.io/api/akka/2.2.3/#akka.actor.ActorPath

my basic disk is full for my gitlab installation, is it possible to move the repositories and their data to some other folder and make sure that the upcoming push&#39;s data is sent to those directories?

I tried stopping the gitlab and copying over the entire folder, but to no avail.
PS - I am not an IT guy, I am just pitching in to see how could we get out of this issue; so please be verbose when answering.


change the data directory gitlab to store repos elsewhere

When columns are stacked in mobile mode, I would like some vertical space separating the column contents, how can I do this?

See jsfiddle in http://jsfiddle.net/tofutim/3sWEN/ and vary the width of the output. There should be some spacing before the second lorem ipsum.

![enter image description here][1]


    &lt;div class=&quot;container&quot;&gt;
        &lt;div class=&quot;well well-lg&quot; style=&quot;margin:10px&quot;&gt;
        &lt;div class=&quot;row&quot;&gt;
            &lt;div class=&quot;col-sm-6&quot;&gt;
                &lt;p&gt;&quot;Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.&quot;&lt;/p&gt;
                &lt;form&gt;               
                    &lt;input type=&quot;textbox&quot; class=&quot;form-control&quot; placeholder=&quot;Username&quot;&gt;&lt;/input&gt;
                    &lt;input type=&quot;password&quot; class=&quot;form-control&quot; placeholder=&quot;Password&quot;&gt;&lt;/input&gt;                     
                &lt;/form&gt;
            &lt;/div&gt;
            &lt;div class=&quot;col-sm-6&quot;&gt;
                &lt;p&gt;&quot;Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.&quot;&lt;/p&gt;
                &lt;form role=&quot;form&quot;&gt;
                    &lt;div class=&quot;form-group&quot;&gt;  
                        &lt;button class=&quot;form-control btn btn-default&quot;&gt;Push me&lt;/button&gt;
                    &lt;input type=&quot;textbox&quot; class=&quot;form-control&quot; placeholder=&quot;Username&quot;&gt;&lt;/input&gt;
                    &lt;input type=&quot;password&quot; class=&quot;form-control&quot; placeholder=&quot;Password&quot;&gt;&lt;/input&gt;            
                    &lt;/div&gt;
                &lt;/form&gt;
            &lt;/div&gt;
        &lt;/div&gt;
        &lt;/div&gt;
    &lt;/div&gt;


  [1]: http://i.stack.imgur.com/031x9.png

Vertical space when stacking columns in Bootstrap 3

So, if I have an actor, I can give it a name. But, can I access that name internally? Example:

    class Actorz extends Actor with ActorLogging {
       val actorName = //??What function

       def receive = {
         case x =&gt; log.debug(actorName+&quot;: Received Message: &quot;+x)
       }
    }

    val actor = system.actorOf(Props[Actorz], &quot;named&quot;)
    actor ! &quot;dogs&quot;

Now, I can pass its name as a constructor parameter. But, that seems like unnecessary duplication if there is a way to get the name internally... as it was set when I instantiated the actor using `system.actorOf`. API docs didn&#39;t seem to have anything.

How can I get the name of an Akka actor from within the actor itself?

So, if I have an actor, I can give it a name. But, can I access that name internally? Example:
<pre><code class="hljs language-ini">class Actorz extends Actor with ActorLogging {
 val actorName = //??What function

 def receive = {
 case x => log.debug(actorName+": Received Message: "+x)
 }
}

val actor = system.actorOf(Props[Actorz], "named")
actor ! "dogs"
</code></pre>
Now, I can pass its name as a constructor parameter. But, that seems like unnecessary duplication if there is a way to get the name internally... as it was set when I instantiated the actor using <code>system.actorOf</code>. API docs didn't seem to have anything.

How can I merge maps like below:

    Map1 = Map(1 -&gt; Class1(1), 2 -&gt; Class1(2))
    Map2 = Map(2 -&gt; Class2(1), 3 -&gt; Class2(2))
    
After merged.
    
    Merged = Map( 1 -&gt; List(Class1(1)), 2 -&gt; List(Class1(2), Class2(1)), 3 -&gt; Class2(2))

Can be List, Set or any other collection who has size attribute.


Scala: Merge map

Scala case classes have a limit of 22 fields in the constructor. I want to exceed this limit, is there a way to do it with inheritance or composition that works with case classes?

How to get around the Scala case class limit of 22 fields?

I&#39;m using IntelliJ IDEA 13 (Community Edition) with the Scala plugin.

My initial import of an existing Scala project with a `build.sbt` worked fine.  The library dependencies were picked up by IDEA. Additional dependencies added after the initial import were not picked up, although I had checked the `auto-import` option.

How can I force IDEA to reload the dependencies from `build.sbt`?

How to force IntelliJ IDEA to reload dependencies from build.sbt after they changed?

Given this `Person` case class:

    scala&gt; case class Person(name: String, age: Int) {}
    defined class Person

... and this instance

    scala&gt; val b = Person(&quot;Kevin&quot;, 100)
    b: Person = Person(Kevin,100)

Is there a reason to prefer this code (with `@`)

    scala&gt; b match {
         |    case p @ Person(_, age) =&gt; println(&quot;age&quot;)
         |    case _ =&gt; println(&quot;none&quot;)
         | }
    age

... over the following?

    scala&gt; b match {
         |    case Person(_, age) =&gt; println(&quot;age&quot;)
         |    case _ =&gt; println(&quot;none&quot;)
         | }
    age

Perhaps I&#39;m missing the meaning/power of `@`?

Pattern Matching `@` Symbol

I&#39;m looking for a way to convert an arbitrary length list of Futures to a Future of List. I&#39;m using Playframework, so ultimately, what I really want is a `Future[Result]`, but to make things simpler, let&#39;s just say `Future[List[Int]]` The normal way to do this would be to use `Future.sequence(...)` but there&#39;s a twist... The list I&#39;m given usually has around 10-20 futures in it, and it&#39;s not uncommon for one of those futures to fail (they are making external web service requests). Instead of having to retry all of them in the event that one of them fails, I&#39;d like to be able to get at the ones that succeeded and return those.   

For example, doing the following doesn&#39;t work

    import scala.concurrent._
    import scala.concurrent.ExecutionContext.Implicits.global
    import scala.util.Success
    import scala.util.Failure
    
    val listOfFutures = Future.successful(1) :: Future.failed(new Exception(&quot;Failure&quot;)) :: 
                        Future.successful(3) :: Nil
    
    val futureOfList = Future.sequence(listOfFutures)
    
    futureOfList onComplete {
      case Success(x) =&gt; println(&quot;Success!!! &quot; + x)
      case Failure(ex) =&gt; println(&quot;Failed !!! &quot; + ex)
    }

    scala&gt; Failed !!! java.lang.Exception: Failure

Instead of getting the only the exception, I&#39;d like to be able to pull the 1 and 3 out of there. I tried using `Future.fold`, but that apparently just calls `Future.sequence` behind the scenes. 

Thanks in advance for the help!




Scala: List[Future] to Future[List] disregarding failed futures

Am a Scala programmer and understand Akka from a developer point of view. I have not looked into Akka library&#39;s code. Have read about the two types of actors in the Akka model - thread-based and event-based - but not having run Akka at large scale I dont have experience of configuring Akka for production. And am completely new to Vert.x. So, from the choices perspective to build a reactive application stack I want to know -

 1. Is the message-passing model of Akka and Vert.x very different? How?
 2. Are the data-structures behind Akka&#39;s actors and Vert.x&#39;s verticles to buffer messages very different?


Difference in message-passing model of Akka and Vert.x

[Play&#39;s home page](http://www.playframework.com/) says:

&gt; Built on Akka, Play provides predictable and minimal resource consumption (CPU, memory, threads) for highly-scalable applications.

I&#39;d like to know exactly how and where Akka is used in Play and what are the consequences of having Play build on top of Akka.

How is Akka used in Play?

What is a difference between tell and forward, in case I will send the same message:

    case msg: Message =&gt;
      otherActor tell (msg,sender)

 and

    case msg: Message =&gt;
      otherActor forward msg
     

Difference between forward and tell in akka actors

Could you please tell me the difference between Apache Spark and AKKA, I know that both frameworks meant to programme distributed and parallel computations, yet i don&#39;t see the link or the difference between them.

Moreover, I would like to get the use cases suitable for each of them.


Apache Spark vs Akka

I would like to create a `Source` and later push elements on it, like in:

    val src = ... // create the Source here
    // and then, do something like this
    pushElement(x1, src)
    pushElement(x2, src)

What is the recommended way to do this?

Thanks!

Content Type	Original Author	Original Content on Stackoverflow
Question	Dante Romero	View Question on Stackoverflow
Solution 1 - Scala	Chris Martin	View Answer on Stackoverflow

How can I get the name of an Akka actor from within the actor itself?

Scala Problem Overview

Scala Solutions

Solution 1 - Scala

Vertical space when stacking columns in Bootstrap 3

change the data directory gitlab to store repos elsewhere

Attributions