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https://issues.apache.org/jira/browse/HBASE-1961?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12780182#action_12780182
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Tatsuya Kawano commented on HBASE-1961:
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Hi Andy, 

I ran into the same problem to stack had -- "lost connection" when try to start 
ZK. 

Then, I found that using KEY_NAME other than "root" fails to connect to the ZK 
because the user with the KEY_NAME doesn't exist on the ZK server. 
For example, I tried KEY_NAME=hbase, and I couldn't login to the ZK server by 
"ssh -i ~/.ec2/id_rsa_hbase hb...@ec2- ...  

I created a key pair named "root" and I got my cluster up and running. 

Thanks, 
Tatsuya


> HBase EC2 scripts
> -----------------
>
>                 Key: HBASE-1961
>                 URL: https://issues.apache.org/jira/browse/HBASE-1961
>             Project: Hadoop HBase
>          Issue Type: New Feature
>         Environment: Amazon AWS EC2
>            Reporter: Andrew Purtell
>            Assignee: Andrew Purtell
>            Priority: Minor
>             Fix For: 0.21.0, 0.20.3
>
>         Attachments: ec2-contrib.tar.gz
>
>
> Attached tarball is a clone of the Hadoop EC2 scripts, modified significantly 
> to start up a HBase storage only cluster on top of HDFS backed by instance 
> storage. 
> Tested with the HBase 0.20 branch but should work with trunk also. Only the 
> AMI create and launch scripts are tested. Will bring up a functioning HBase 
> cluster. 
> Do "create-hbase-image c1.xlarge" to create an x86_64 AMI, or 
> "create-hbase-image c1.medium" to create an i386 AMI.  Public Hadoop/HBase 
> 0.20.1 AMIs are available:
>     i386: ami-c644a7af
>     x86_64: ami-f244a79b
> launch-hbase-cluster brings up the cluster: First, a small dedicated ZK 
> quorum, specifiable in size, default of 3. Then, the DFS namenode (formatting 
> on first boot) and one datanode and the HBase master. Then, a specifiable 
> number of slaves, instances running DFS datanodes and HBase region servers.  
> For example:
> {noformat}
>     launch-hbase-cluster testcluster 100 5
> {noformat}
> would bring up a cluster with 100 slaves supported by a 5 node ZK ensemble.
> We must colocate a datanode with the namenode because currently the master 
> won't tolerate a brand new DFS with only namenode and no datanodes up yet. 
> See HBASE-1960. By default the launch scripts provision ZooKeeper as 
> c1.medium and the HBase master and region servers as c1.xlarge. The result is 
> a HBase cluster supported by a ZooKeeper ensemble. ZK ensembles are not 
> dynamic, but HBase clusters can be grown by simply starting up more slaves, 
> just like Hadoop. 
> hbase-ec2-init-remote.sh can be trivially edited to bring up a jobtracker on 
> the master node and task trackers on the slaves.

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