[jira] [Commented] (GIRAPH-1068) Make Zookeeper accept 0 as a port number and let it choose any available free port

["Hudson (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/GIRAPH-1068?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15332677#comment-15332677 ] 

Hudson commented on GIRAPH-1068:
--------------------------------

FAILURE: Integrated in Giraph-trunk-Commit #1621 (See [https://builds.apache.org/job/Giraph-trunk-Commit/1621/])
GIRAPH-1068 Make Zookeeper accept 0 as a port number and let it choose (edunov: [http://git-wip-us.apache.org/repos/asf?p=giraph.git&a=commit&h=916763e747b0f2d3bf2dcda76100dbc0d5714a9c])
* giraph-core/src/main/java/org/apache/giraph/zk/ZooKeeperManager.java
* giraph-core/src/main/java/org/apache/giraph/bsp/BspService.java
* giraph-core/src/main/java/org/apache/giraph/yarn/GiraphYarnClient.java
* giraph-core/src/main/java/org/apache/giraph/zk/OutOfProcessZooKeeperRunner.java
* giraph-core/src/main/java/org/apache/giraph/zk/InProcessZooKeeperRunner.java
* giraph-core/src/main/java/org/apache/giraph/zk/ZookeeperConfig.java
* giraph-core/src/main/java/org/apache/giraph/bsp/BspInputFormat.java
* giraph-core/src/main/java/org/apache/giraph/utils/InternalVertexRunner.java
* giraph-core/src/main/java/org/apache/giraph/graph/GraphTaskManager.java
* giraph-core/src/main/java/org/apache/giraph/zk/ZooKeeperRunner.java
* giraph-core/src/main/java/org/apache/giraph/conf/GiraphConstants.java
* giraph-core/src/main/java/org/apache/giraph/conf/GiraphConfiguration.java


> Make Zookeeper accept 0 as a port number and let it choose any available free port
> ----------------------------------------------------------------------------------
>
>                 Key: GIRAPH-1068
>                 URL: https://issues.apache.org/jira/browse/GIRAPH-1068
>             Project: Giraph
>          Issue Type: Task
>            Reporter: Sergey Edunov
>            Assignee: Sergey Edunov
>
> We have a few use cases where having zookeeper bound to specific port is very inconvenient. 
> 1) Unit tests that run in parallel. 
> 2) Shared clusters where multiple giraph instances can run on the same machines. 
> In theory we don't need to know what port zookeeper will run on. In most cases we're fine with any port available. 
> Picking any available port is currently supported by the server socket, but is not supported in the code that parses zookeper configs (this code lives in zookeper). 
> We don't have to parse configs though, as we have a way to run zookeper in process. And in that case we can have a full control on how zookeeper is initialized. 
> For this task I want to allow 0 as a port number for zookeeper. Which will allow us to run zookeeper on any available port. And I will also remove "out of process" zookeeper, as it clearly provides no benefits to us.  
> Note: it will still be possible to run external zookeper, if you have it running somewhere as a service. 



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