Implement recommendations for vanilla 2.6.0

This patch implements base recommendation provider for vanilla 2.6.0. Also
added new fields in database for cluster and node groups which will allow
to switch off autoconfiguration.

Partial-implements blueprint: recommend-configuration
Change-Id: I9abb6b9c04494f4aed9b72479c06e45fe289c1ff

sahara/plugins/vanilla/plugin.py

@@ -92,3 +92,7 @@ class VanillaProvider(p.ProvisioningPluginBase):
     def on_terminate_cluster(self, cluster):
         return self._get_version_handler(
             cluster.hadoop_version).on_terminate_cluster(cluster)
+
+    def recommend_configs(self, cluster):
+        return self._get_version_handler(
+            cluster.hadoop_version).recommend_configs(cluster)

sahara/plugins/vanilla/v1_2_1/versionhandler.py

@@ -594,3 +594,7 @@ class VersionHandler(avm.AbstractVersionHandler):
 
     def on_terminate_cluster(self, cluster):
         proxy.delete_proxy_user_for_cluster(cluster)
+
+    def recommend_configs(self, cluster):
+        # We don't support any recommendations in Vanilla 1 plugin
+        pass

sahara/plugins/vanilla/v2_6_0/versionhandler.py

@@ -18,6 +18,7 @@ from oslo_log import log as logging
 
 from sahara import conductor
 from sahara import context
+from sahara.plugins import recommendations_utils as ru
 from sahara.plugins import utils
 from sahara.plugins.vanilla import abstractversionhandler as avm
 from sahara.plugins.vanilla.hadoop2 import config as c
@@ -189,3 +190,34 @@ class VersionHandler(avm.AbstractVersionHandler):
 
     def get_open_ports(self, node_group):
         return c.get_open_ports(node_group)
+
+    def recommend_configs(self, cluster):
+        yarn_configs = [
+            'yarn.nodemanager.resource.memory-mb',
+            'yarn.scheduler.minimum-allocation-mb',
+            'yarn.scheduler.maximum-allocation-mb',
+            'yarn.nodemanager.vmem-check-enabled',
+        ]
+        mapred_configs = [
+            'yarn.app.mapreduce.am.resource.mb',
+            'yarn.app.mapreduce.am.command-opts',
+            'mapreduce.map.memory.mb',
+            'mapreduce.reduce.memory.mb',
+            'mapreduce.map.java.opts',
+            'mapreduce.reduce.java.opts',
+            'mapreduce.task.io.sort.mb',
+        ]
+        configs_to_configure = {
+            'cluster_configs': {
+                'dfs.replication': ('HDFS', 'dfs.replication')
+            },
+            'node_configs': {
+            }
+        }
+        for mapr in mapred_configs:
+            configs_to_configure['node_configs'][mapr] = ("MapReduce", mapr)
+        for yarn in yarn_configs:
+            configs_to_configure['node_configs'][yarn] = ('YARN', yarn)
+        provider = ru.HadoopAutoConfigsProvider(
+            configs_to_configure, self.get_plugin_configs(), cluster)
+        provider.apply_recommended_configs()

sahara/tests/unit/plugins/vanilla/v2_6_0/test_versionhandler.py

@@ -0,0 +1,63 @@
+# Copyright (c) 2015 Mirantis Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import mock
+import testtools
+
+from sahara.plugins.vanilla.v2_6_0 import versionhandler
+
+CONFIGURATION_SCHEMA = {
+    'cluster_configs': {
+        'dfs.replication': ('HDFS', 'dfs.replication')
+    },
+    'node_configs': {
+        'yarn.app.mapreduce.am.command-opts': (
+            'MapReduce', 'yarn.app.mapreduce.am.command-opts'),
+        'yarn.scheduler.maximum-allocation-mb': (
+            'YARN', 'yarn.scheduler.maximum-allocation-mb'),
+        'yarn.app.mapreduce.am.resource.mb': (
+            'MapReduce', 'yarn.app.mapreduce.am.resource.mb'),
+        'yarn.scheduler.minimum-allocation-mb': (
+            'YARN', 'yarn.scheduler.minimum-allocation-mb'),
+        'yarn.nodemanager.vmem-check-enabled': (
+            'YARN', 'yarn.nodemanager.vmem-check-enabled'),
+        'mapreduce.map.java.opts': (
+            'MapReduce', 'mapreduce.map.java.opts'),
+        'mapreduce.reduce.memory.mb': (
+            'MapReduce', 'mapreduce.reduce.memory.mb'),
+        'yarn.nodemanager.resource.memory-mb': (
+            'YARN', 'yarn.nodemanager.resource.memory-mb'),
+        'mapreduce.reduce.java.opts': (
+            'MapReduce', 'mapreduce.reduce.java.opts'),
+        'mapreduce.map.memory.mb': (
+            'MapReduce', 'mapreduce.map.memory.mb'),
+        'mapreduce.task.io.sort.mb': (
+            'MapReduce', 'mapreduce.task.io.sort.mb')
+    }
+}
+
+
+class TestVersionHandler(testtools.TestCase):
+    @mock.patch('sahara.plugins.recommendations_utils.'
+                'HadoopAutoConfigsProvider')
+    @mock.patch('sahara.plugins.vanilla.v2_6_0.versionhandler.VersionHandler.'
+                'get_plugin_configs')
+    def test_recommend_configs(self, fake_plugin_configs, provider):
+        f_cluster, f_configs = mock.Mock(), mock.Mock()
+        fake_plugin_configs.return_value = f_configs
+        versionhandler.VersionHandler().recommend_configs(f_cluster)
+        self.assertEqual([
+            mock.call(CONFIGURATION_SCHEMA, f_configs, f_cluster)
+        ], provider.call_args_list)