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Date: Thu, 19 Nov 2015 11:25:11 +0000 (UTC)
From: "Duncan Grant (JIRA)" <jira@apache.org>
To: dev@brooklyn.incubator.apache.org
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Subject: [jira] [Comment Edited] (BROOKLYN-192) Cannot create DynamicCluster
 of [entities with multiple children] of size greater than one
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    [ https://issues.apache.org/jira/browse/BROOKLYN-192?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15013336#comment-15013336 ] 

Duncan Grant edited comment on BROOKLYN-192 at 11/19/15 11:24 AM:
------------------------------------------------------------------

Here's some yaml that will demonstrate the above issue:

{noformat}
name: Empty System
location: jclouds:softlayer:ams01
services:
- type: brooklyn.entity.group.DynamicCluster
  initialSize: 2
  memberSpec:
    $brooklyn:entitySpec:
      - type: org.apache.brooklyn.entity.software.base.EmptySoftwareProcess
        brooklyn.config:
          children.startable.mode: background_late
        brooklyn.children:
        - type: org.apache.brooklyn.entity.software.base.EmptySoftwareProcess
{noformat}


was (Author: duncanjg):
Here's some yaml that will demonstrate the above issue:

name: Empty System
location: jclouds:softlayer:ams01
services:
- type: brooklyn.entity.group.DynamicCluster
  initialSize: 2
  memberSpec:
    $brooklyn:entitySpec:
      - type: org.apache.brooklyn.entity.software.base.EmptySoftwareProcess
        brooklyn.config:
          children.startable.mode: background_late
        brooklyn.children:
        - type: org.apache.brooklyn.entity.software.base.EmptySoftwareProcess


> Cannot create DynamicCluster of [entities with multiple children] of size greater than one
> ------------------------------------------------------------------------------------------
>
>                 Key: BROOKLYN-192
>                 URL: https://issues.apache.org/jira/browse/BROOKLYN-192
>             Project: Brooklyn
>          Issue Type: Bug
>    Affects Versions: 0.9.0
>            Reporter: Mike Zaccardo
>
> When a `DynamicCluster` of entities, each of which have multiple `brooklyn.children` entities, is created with an initial size greater than one:
> {code:java}
> org.apache.brooklyn.util.exceptions.PropagatedRuntimeException:
> org.apache.brooklyn.util.exceptions.PropagatedRuntimeException: Error
> invoking start at DynamicClusterImpl{id=vxtguIix}:
> java.lang.IllegalStateException: On start of cluster
> DynamicClusterImpl{id=vxtguIix}, failed to get to initial size of 2; size
> is 1: Spec EntitySpec{type=interface
> org.apache.brooklyn.entity.software.base.EmptySoftwareProcess} has parent
> EmptySoftwareProcessImpl{id=hN8uSfbM} defined, but it is defined as a child
> of EmptySoftwareProcessImpl{id=ft1Egn5i}
> {code}
> The exception is thrown here: https://github.com/apache/incubator-brooklyn/blob/master/core/src/main/java/org/apache/brooklyn/core/objs/proxy/InternalEntityFactory.java#L210
> It is thrown because the `brooklyn.children` specs have their parent values erroneously assigned to an entity that is not actually their immediate parent.


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