Changes while one node is down are not replicated after the node reboot in BRMS/BPMS business-central

Issue

• I setup BRMS 2 node cluster. While node2 is down, I created a new repository in node1. Then I reboot node2. business-central in node2 doesn't display the newly created repository.
• User is trying to set up a cluster of BRMS 6 nodes. The cluster set-up has 2 servers in it. Initially, it is visible that the two servers were communicating since they both showed as master and slave in the Management Console, but found that they were not using the properties required by BRMS + Zookeeper + Helix which was set for each server node. The required configuration were added directly into the host.xml files, and for some reason, they were not picked up by the nodes, although no errors were thrown. Later these configurations were added through the Management Console, and now they are getting picked up, however now the servers don't start completely. They load up the business-central application, but they seem to get hung up during some of messaging with Zookeeper nodes, and never finish loading. The Management Console shows them as not running, and attempting to reach the business-central page returns a 404 error. Each time user attempts to start the servers, it prints the following lines of information in the zookeeper.out file.

2014-05-27 14:00:01,073 - INFO [ProcessThread:-1:PrepRequestProcessor@411] - Got user-level KeeperException when processing sessionid:0x14606e011fb0008 type:setData cxid:0x43 zxid:0xfffffffffffffffe txntype:unknown reqpath:n/a Error Path:/kie-cluster/INSTANCES/linux-84_12345/MESSAGES/f1fa7fdf-3cf3-4a59-97d5-7dbfe030f094 Error:KeeperErrorCode = NoNode for /kie-cluster/INSTANCES/linux-84_12345/MESSAGES/f1fa7fdf-3cf3-4a59-97d5-7dbfe030f094
2014-05-27 14:00:01,123 - INFO [ProcessThread:-1:PrepRequestProcessor@411] - Got user-level KeeperException when processing sessionid:0x14606e011fb0008 type:setData cxid:0x53 zxid:0xfffffffffffffffe txntype:unknown reqpath:n/a Error Path:/kie-cluster/INSTANCES/linux-84_12345/MESSAGES/5911843b-7917-4d13-ab26-471a40d28e2a Error:KeeperErrorCode = NoNode for /kie-cluster/INSTANCES/linux-84_12345/MESSAGES/5911843b-7917-4d13-ab26-471a40d28e2a
2014-05-27 14:00:01,220 - INFO [ProcessThread:-1:PrepRequestProcessor@411] - Got user-level KeeperException when processing sessionid:0x14606e011fb0008 type:setData cxid:0x63 zxid:0xfffffffffffffffe txntype:unknown reqpath:n/a Error Path:/kie-cluster/INSTANCES/linux-84_12345/MESSAGES/2269696c-7893-4acb-9213-342ddab7a1ed Error:KeeperErrorCode = NoNode for /kie-cluster/INSTANCES/linux-84_12345/MESSAGES/2269696c-7893-4acb-9213-342ddab7a1ed
2014-05-27 14:00:01,258 - INFO [ProcessThread:-1:PrepRequestProcessor@411] - Got user-level KeeperException when processing sessionid:0x14606e011fb0008 type:setData cxid:0x90 zxid:0xfffffffffffffffe txntype:unknown reqpath:n/a Error Path:/kie-cluster/INSTANCES/linux-84_12345/MESSAGES/7ca89aa1-9a01-4a2e-86c0-936278cd65c3 Error:KeeperErrorCode = NoNode for /kie-cluster/INSTANCES/linux-84_12345/MESSAGES/7ca89aa1-9a01-4a2e-86c0-936278cd65c3

How to solve this issue?