fixes format version detection of a local `docker-compose.yml`.

[metasearch/grid-chef-repo.git] / environments / hadoop_aws_t1-micro.rb

diff --git a/environments/hadoop_aws_t1-micro.rb b/environments/hadoop_aws_t1-micro.rb
index cf27aa4..265474b 100644 (file)
--- a/environments/hadoop_aws_t1-micro.rb
+++ b/environments/hadoop_aws_t1-micro.rb
@@ -1,32 +1,33 @@
 name "hadoop_aws_t1-micro"
-description "AWS EC2 t1.micro"
+description "Hadoop cluster conf. on the AWS EC2 t1.micro instances."
+# t1.micro: 1 vCPU, 0.615 GiB, no storage (EBS only)
+# http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/concepts_micro_instances.html
 
-#cookbook_versions  "couchdb" => "= 11.0.0"
+#cookbook_versions  "hadoop" => "= 0.2.0"
 
 hadoop_attributes = {
   # core-site.xml
-  'dfs.replication' => '2',
-  #'dfs.replication' => '3',  # default, recommended.
+  'dfs.replication' => '2',  # default: 3 (recommended)
   # mapred-site.xml
   'extra_configs' => {
     # e.g. 'core-site.xml' => {'k1' => 'v1', 'k2' => 'v2'},
     'hadoop-env.sh' => {
-      #'HADOOP_HEAPSIZE' => '2000',               # default: 1000 MB
+      'HADOOP_HEAPSIZE' => '500',               # default: 1000 MB
       #'HADOOP_NAMENODE_INIT_HEAPSIZE' => '2000'  # default: 1000 MB (ver. 2.x)
-      #'HADOOP_NAMENODE_OPTS' => '',
-      #'HADOOP_SECONDARYNAMENODE_OPTS' => '',
-      #'HADOOP_DATANODE_OPTS' => '',
-      #'HADOOP_BALANCER_OPTS' => '',
-      #'HADOOP_JOBTRACKER_OPTS' => '',
+      #'HADOOP_NAMENODE_OPTS' => '"${HADOOP_NAMENODE_OPTS} -Xmx500m"',
+      #'HADOOP_SECONDARYNAMENODE_OPTS' => '"${HADOOP_SECONDARYNAMENODE_OPTS} -Xmx500m"',
+      #'HADOOP_DATANODE_OPTS' => '"${HADOOP_DATANODE_OPTS} "',
+      #'HADOOP_BALANCER_OPTS' => '"${HADOOP_BALANCER_OPTS} "',
+      #'HADOOP_JOBTRACKER_OPTS' => '"${HADOOP_JOBTRACKER_OPTS} -Xmx500m"',
     },
     'yarn-env.sh' => {  # ver. 2.x
-      #'YARN_HEAPSIZE' => '2000'  # default: 1000 MB
-      #'YARN_RESOURCEMANAGER_OPTS' => '',
-      #'YARN_NODEMANAGER_OPTS' => '',
+      'YARN_HEAPSIZE' => '500'  # default: 1000 MB
+      #'YARN_RESOURCEMANAGER_OPTS' => '"${YARN_RESOURCEMANAGER_OPTS} -Xmx500m"',
+      #'YARN_NODEMANAGER_OPTS' => '"${YARN_NODEMANAGER_OPTS} "',
     },
     'mapred-env.sh' => {  # ver. 2.x
-      #'HADOOP_JOB_HISTORYSERVER_HEAPSIZE' => '2000',  # default: 1000 MB
-      #'HADOOP_JOB_HISTORYSERVER_OPTS' => '',
+      #'HADOOP_JOB_HISTORYSERVER_HEAPSIZE' => '500',  # default: 1000 MB
+      #'HADOOP_JOB_HISTORYSERVER_OPTS' => '"${HADOOP_JOB_HISTORYSERVER_OPTS} "',
     },
     'core-site.xml' => {
     },
@@ -61,9 +62,9 @@ hadoop_attributes = {
   }
 }
 
-default_attributes(
+override_attributes(
   'grid' => {
-    'max_vol_nums' => '4'
+    'max_vol_nums' => '1'
   },
   'hadoop' => hadoop_attributes
 )