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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-1961) HBase EC2 scripts
Date Tue, 17 Nov 2009 19:20:42 GMT

    [ https://issues.apache.org/jira/browse/HBASE-1961?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12779062#action_12779062
] 

Andrew Purtell commented on HBASE-1961:
---------------------------------------

No, HBASE-1982 is about handling what happens if you ask for 100 slaves (assuming your EC2
account is set up for that many concurrent instances), etc.

"Lost connection" is a complaint from SSH. Check your networking. Firewall in the way on your
end I wonder. Or any errors seen while setting up the security groups? Add 
"-v" to SSH_OPTS in hbase-ec2-env. Additional "-v" switches increment the debug level, up
to "-v -v -v". 

> 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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