Zookeeper error: Fabric - Connect to child container doesnt work anymore

Issue

• We getting this errors after restarting the root container.

2016-09-15 08:48:06,833 | ERROR | ZooKeeperGroup-0 | ZooKeeperGroup                   | 139 - io.fabric8.fabric-groups - 1.2.0.redhat-621084 | 
org.apache.zookeeper.KeeperException$NoAuthException: KeeperErrorCode = NoAuth for /fabric/registry/clusters/git
    at org.apache.zookeeper.KeeperException.create(KeeperException.java:113)[145:io.fabric8.fabric-zookeeper:1.2.0.redhat-621084]
    at org.apache.zookeeper.KeeperException.create(KeeperException.java:51)[145:io.fabric8.fabric-zookeeper:1.2.0.redhat-621084]
    at org.apache.zookeeper.ZooKeeper.getChildren(ZooKeeper.java:1590)[145:io.fabric8.fabric-zookeeper:1.2.0.redhat-621084]
    at org.apache.curator.framework.imps.GetChildrenBuilderImpl$3.call(GetChildrenBuilderImpl.java:214)[145:io.fabric8.fabric-zookeeper:1.2.0.redhat-621084]
    at org.apache.curator.framework.imps.GetChildrenBuilderImpl$3.call(GetChildrenBuilderImpl.java:203)[145:io.fabric8.fabric-zookeeper:1.2.0.redhat-621084]
    at org.apache.curator.RetryLoop.callWithRetry(RetryLoop.java:107)[145:io.fabric8.fabric-zookeeper:1.2.0.redhat-621084]
    at org.apache.curator.framework.imps.GetChildrenBuilderImpl.pathInForeground(GetChildrenBuilderImpl.java:199)[145:io.fabric8.fabric-zookeeper:1.2.0.redhat-621084]
    at org.apache.curator.framework.imps.GetChildrenBuilderImpl.forPath(GetChildrenBuilderImpl.java:191)[145:io.fabric8.fabric-zookeeper:1.2.0.redhat-621084]
    at org.apache.curator.framework.imps.GetChildrenBuilderImpl.forPath(GetChildrenBuilderImpl.java:38)[145:io.fabric8.fabric-zookeeper:1.2.0.redhat-621084]
    at io.fabric8.groups.internal.ZooKeeperGroup.refresh(ZooKeeperGroup.java:371)[139:io.fabric8.fabric-groups:1.2.0.redhat-621084]
    at io.fabric8.groups.internal.RefreshOperation.invoke(RefreshOperation.java:32)[139:io.fabric8.fabric-groups:1.2.0.redhat-621084]
    at io.fabric8.groups.internal.ZooKeeperGroup.mainLoop(ZooKeeperGroup.java:496)[139:io.fabric8.fabric-groups:1.2.0.redhat-621084]
    at io.fabric8.groups.internal.ZooKeeperGroup.access$200(ZooKeeperGroup.java:66)[139:io.fabric8.fabric-groups:1.2.0.redhat-621084]
    at io.fabric8.groups.internal.ZooKeeperGroup$4.run(ZooKeeperGroup.java:157)[139:io.fabric8.fabric-groups:1.2.0.redhat-621084]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)[:1.8.0_101]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)[:1.8.0_101]
    at java.lang.Thread.run(Thread.java:745)[:1.8.0_101]

• This is the first time we have seen this error. We have to re-install and re-configured fabric server after this happen .