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ekoontz edited this page Sep 14, 2010
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hbase-ec2 is a Ruby library to help manage a set of Amazon EC2 instances as a single HBase cluster.
hbase-ec2 is currently supplied as a set of ruby files that currently is :
- lib/hcluster.rb : the Hadoop::HCluster and Hadoop::HImage class definitions
- lib/TestDFSIO.rb : a subclass of HCluster, intended as an example for testing Hadoop filesystem functionality.
export RUBYOPT="rubygems"-
AWS::EC2. You can install this with
gem install amazon-ec2. -
AWS::S3. You can install this with
gem install aws-s3. -
Net::SSH. You can install this with
gem install net-ssh. -
Net::SCP. You can install this with
gem install net-scp. - OpenSSL support for Ruby. This might also be installed with your ruby, but on Ubuntu, I had to do:
apt-get install libruby-extras.
As the Puppet Installation docs say:
You can test for it by running ‘ruby -ropenssl -e “puts :yep”’. If that errors out, you’re missing the library.
- An Amazon EC2 account. You must add the following to your environment prior to starting irb:
export AWS_ACCESS_KEY_ID=... export AWS_SECRET_ACCESS_KEY=... export AWS_ACCOUNT_ID=...
- A EC2 key pair called “root”. This should be stored in your home directory in
~/.ec2/root.pem.
You can set your preferred EC2 region with the EC2_URL environment variable; for example:
export EC2_URL="http://ec2.us-west-1.amazonaws.com"
By default, https://ec2.amazonaws.com will be used. You can see a complete list of available regions by using the ec2-describe-regions function (see Amazon’s Region and Availability Zone FAQ).
git clone git://github.com/ekoontz/hbase-ec2.git
$ irb
>> $:.unshift("~/hbase-ec2/lib")
=> ["~/hbase-ec2/lib", ...]
>> load 'hcluster.rb'
=> true
>> include Hadoop
=> Object
See: Himage Usage
>> cluster = HCluster.new :label => 'hbase-0.20.5-x86_64'
=> #<Hadoop::HCluster:0x1010e2098 @rs_key_name="root",
...
>> cluster.launch
[launch:zk.........................]
[setup:zk:ec2-184-73-5-47.compute-1.amazonaws.com...........]
[launch:master.......................]
[setup:master:ec2-184-73-53-56.compute-1.amazonaws.com...................................................]
[launch:rs....................]
[setup:rs:ec2-184-73-7-119.compute-1.amazonaws.com....................................]
[setup:rs:ec2-184-73-12-72.compute-1.amazonaws.com....................................]
[setup:rs:ec2-184-73-110-61.compute-1.amazonaws.com....................................]
[setup:rs:ec2-75-101-180-6.compute-1.amazonaws.com...................................]
[setup:rs:ec2-174-129-187-163.compute-1.amazonaws.com....................................]
=> "running"
>> cluster.run_test("TestDFSIO -write -nrFiles 10 -fileSize 1000")
TestFDSIO.0.0.4
(stderr): 10/06/22 19:43:24 INFO mapred.FileInputFormat: nrFiles = 10
(stderr): 10/06/22 19:43:24 INFO mapred.FileInputFormat: fileSize (MB) = 1000
...
10/06/22 19:44:32 INFO mapred.FileInputFormat: IO rate std deviation: 1.0992092756403666
10/06/22 19:44:32 INFO mapred.FileInputFormat: Test exec time sec: 67.721
10/06/22 19:44:32 INFO mapred.FileInputFormat:
=> nil
>> cluster.terminate
terminating zookeeper: i-5144a73b
terminating master: i-9344a7f9
terminating regionserver: i-4d4aa927
terminating regionserver: i-434aa929
terminating regionserver: i-414aa92b
terminating regionserver: i-474aa92d
terminating regionserver: i-454aa92f
=> {"name"=>"hdfs", "num_zookeepers"=>1, "master"=>"i-9344a7f9", "launchTime"=>"2010-06-22T23:22:13.000Z", "num_regionservers"=>5, "dnsName"=>"ec2-184-73-16-65.compute-1.amazonaws.com", "state"=>"terminated"}
>>