Templatizes JVM configuration for Midolman

Change-Id: I798d051fc050d9f5492859c4292d4ae9e6373418

Gemfile

@@ -21,11 +21,11 @@ end
 
 group :system_tests do
 
-  gem 'beaker', '2.45.0'
+  gem 'beaker'
   if beaker_version = ENV['BEAKER_VERSION']
     ## TODO - Remove hardcoded version as soon as BKR-885 is fixed
     ## https://tickets.puppetlabs.com/browse/BKR-885
-    #gem 'beaker', *location_for(beaker_version)
+    # gem 'beaker', *location_for(beaker_version)
   end
   if beaker_rspec_version = ENV['BEAKER_RSPEC_VERSION']
     gem 'beaker-rspec', *location_for(beaker_rspec_version)

Puppetfile

@@ -15,7 +15,13 @@ mod 'puppet-neutron',
 mod 'puppetlabs/inifile'
 mod 'puppetlabs/apt'
 mod 'puppetlabs/java'
-mod 'puppetlabs/tomcat'
 mod 'puppetlabs/stdlib'
 mod 'puppetlabs/apache'
+mod 'puppetlabs/firewall'
+mod 'deric/zookeeper'
+mod 'locp/cassandra'
 mod 'puppetlabs/concat'
+
+mod 'midonet_openstack',
+  :git => 'https://github.com/midonet/puppet-midonet_openstack',
+  :ref => 'master'

manifests/agent.pp

@@ -10,6 +10,9 @@
 # [*service_name*]
 #   Name of the MN agent service. Default: undef
 #
+# [*service_ensure*]
+#   Whether the service should be running or not. Default: undef
+#
 # [*agent_config_path*]
 #   Full path to the MN agent config. Default: undef
 #
@@ -80,6 +83,7 @@ class midonet::agent (
   $agent_config_path  = undef,
   $package_ensure     = undef,
   $manage_java        = undef,
+  $max_heap_size      = undef,
   $zookeeper_hosts,
   $controller_host,
   $metadata_port,
@@ -104,6 +108,7 @@ class midonet::agent (
     controller_host   => $controller_host,
     metadata_port     => $metadata_port,
     shared_secret     => $shared_secret,
+    max_heap_size     => $max_heap_size,
     require           => Class['midonet::agent::install'],
   }
 }

manifests/agent/run.pp

@@ -35,11 +35,14 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
+
 class midonet::agent::run (
   $service_name       = 'midolman',
   $service_ensure     = 'running',
   $service_enable     = true,
   $agent_config_path  = '/etc/midolman/midolman.conf',
+  $jvm_config_path    = '/etc/midolman/midolman-env.sh',
+  $max_heap_size      = '2048M',
   $zookeeper_hosts,
   $controller_host,
   $metadata_port,
@@ -62,6 +65,14 @@ class midonet::agent::run (
     before  => File['/tmp/mn-agent_config.sh'],
   }
 
+  file { 'jvm_config':
+    ensure  => present,
+    path    => $jvm_config_path,
+    content => template('midonet/agent/midolman-env.sh.erb'),
+    require => Package['midolman'],
+    notify  => Service['midolman'],
+  }
+
   service { 'midolman':
     ensure => $service_ensure,
     name   => $service_name,

manifests/cli.pp

@@ -42,17 +42,22 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-class midonet::midonet_cli(
+class midonet::cli(
   $api_endpoint='http://127.0.0.1:8181/midonet-api',
   $username='admin',
   $password='admin',
   $tenant_name='admin',
 ) {
 
-  package {'python-midonetclient':
+  if $::osfamily == 'RedHat' {
-    ensure  => present,
+    package { 'epel-release':
+      ensure => installed,
+      before => Package['python-midonetclient']
+    }
   }
 
+  package { 'python-midonetclient': ensure  => present, }
+
   midonet_client_conf {
     'cli/api_url':    value => $api_endpoint;
     'cli/username':   value => $username;

manifests/cluster.pp

@@ -75,14 +75,17 @@
 # limitations under the License.
 #
 class midonet::cluster (
-  $package_name           = undef,
+  $package_name            = undef,
-  $service_name           = undef,
+  $service_name            = undef,
-  $service_ensure         = undef,
+  $service_ensure          = undef,
-  $service_enable         = undef,
+  $service_enable          = undef,
-  $cluster_config_path    = undef,
+  $cluster_config_path     = undef,
-  $cluster_host           = undef,
+  $cluster_jvm_config_path = undef,
-  $cluster_port           = undef,
+  $cluster_host            = undef,
-  $keystone_port          = undef,
+  $cluster_port            = undef,
+  $keystone_port           = undef,
+  $max_heap_size           = undef,
+  $heap_newsize            = undef,
   $zookeeper_hosts,
   $cassandra_servers,
   $cassandra_rep_factor,
@@ -95,17 +98,20 @@ class midonet::cluster (
     } ->
 
     class { 'midonet::cluster::run':
-      service_name         => $service_name,
+      service_name            => $service_name,
-      service_ensure       => $service_ensure,
+      service_ensure          => $service_ensure,
-      service_enable       => $service_enable,
+      service_enable          => $service_enable,
-      cluster_config_path  => $cluster_config_path,
+      cluster_config_path     => $cluster_config_path,
-      cluster_host         => $cluster_host,
+      cluster_jvm_config_path => $cluster_config_path,
-      cluster_port         => $cluster_port,
+      cluster_host            => $cluster_host,
-      zookeeper_hosts      => $zookeeper_hosts,
+      cluster_port            => $cluster_port,
-      cassandra_servers    => $cassandra_servers,
+      max_heap_size           => $max_heap_size,
-      cassandra_rep_factor => $cassandra_rep_factor,
+      heap_newsize            => $heap_newsize,
-      keystone_admin_token => $keystone_admin_token,
+      zookeeper_hosts         => $zookeeper_hosts,
-      keystone_host        => $keystone_host,
+      cassandra_servers       => $cassandra_servers,
-      keystone_port        => $keystone_port
+      cassandra_rep_factor    => $cassandra_rep_factor,
+      keystone_admin_token    => $keystone_admin_token,
+      keystone_host           => $keystone_host,
+      keystone_port           => $keystone_port
     }
 }

manifests/cluster/run.pp

@@ -23,18 +23,21 @@
 # limitations under the License.
 #
 class midonet::cluster::run (
-  $service_name         = 'midonet-cluster',
+  $service_name             = 'midonet-cluster',
-  $service_ensure       = 'running',
+  $service_ensure           = 'running',
-  $service_enable       = true,
+  $service_enable           = true,
-  $cluster_config_path  = '/etc/midonet/midonet.conf',
+  $cluster_config_path      = '/etc/midonet/midonet.conf',
-  $cluster_host         = '0.0.0.0',
+  $cluster_jvm_config_path  = '/etc/midonet-cluster/midonet-cluster-env.sh',
-  $cluster_port         = '8181',
+  $cluster_host             = '0.0.0.0',
+  $cluster_port             = '8181',
+  $max_heap_size            = '2048M',
+  $heap_newsize             = '1024M',
   $zookeeper_hosts,
   $cassandra_servers,
   $cassandra_rep_factor,
   $keystone_admin_token,
   $keystone_host,
-  $keystone_port        = '35357'
+  $keystone_port            = '35537'
 ) {
 
   file { '/tmp/mn-cluster_config.sh':
@@ -53,6 +56,14 @@ class midonet::cluster::run (
     before  => File['/tmp/mn-cluster_config.sh'],
   }
 
+  file { 'cluster_jvm_config':
+    ensure  => present,
+    path    => $cluster_jvm_config_path,
+    content => template('midonet/cluster/midonet-cluster-env.sh.erb'),
+    require => Package['midonet-cluster'],
+    notify  => Service['midonet-cluster'],
+  }
+
   service { 'midonet-cluster':
     ensure => $service_ensure,
     name   => $service_name,

spec/acceptance/midonet_agent_spec.rb

@@ -5,12 +5,16 @@ describe 'midonet::agent class' do
     # Using puppet_apply as a helper
     it 'should install the midonet agent without any errors' do
       pp = <<-EOS
+      class { 'midonet_openstack::role::nsdb':
+      }
       class { 'midonet::agent':
         zookeeper_hosts => [ { 'ip' => '127.0.0.1', 'port' => '2181' } ],
         controller_host => '127.0.0.1',
-        metadata_port => '8181',
+        metadata_port   => '8181',
-        shared_secret => 'SHARED_SECRET',
+        shared_secret   => 'SHARED_SECRET',
-        manage_java => true,
+        manage_java     => false,
+        require         => Class['midonet_openstack::role::nsdb'],
+        max_heap_size   => "256M"
       }
       EOS
 
@@ -27,11 +31,6 @@ describe 'midonet::agent class' do
       it { should be_enabled }
       it { should be_running }
     end
-
-    # JMX
-    describe port(7200) do
-      it { should be_listening }
-    end
   end
 
   context

spec/acceptance/midonet_cli_spec.rb

@@ -1,11 +1,11 @@
 require 'spec_helper_acceptance'
 
-describe 'midonet class' do
+describe 'midonet::cli class' do
   context 'without mem' do
     # Using puppet_apply as a helper
     it 'should work without any errors' do
       pp = <<-EOS
-        class {'::midonet::midonet_cli':
+        class {'midonet::cli':
           api_endpoint => 'http://127.0.0.1:8181/midonet-api',
           username     => 'admin',
           password     => 'admin',
@@ -27,7 +27,6 @@ describe 'midonet class' do
         its (:content) { should match /username=admin/ }
         its (:content) { should match /password=admin/ }
         its (:content) { should match /project_id=admin/ }
-
       end
 
 

spec/acceptance/midonet_cluster_spec.rb

@@ -10,7 +10,8 @@ describe 'midonet::cluster class' do
         cassandra_servers     => ['127.0.0.1'],
         cassandra_rep_factor  => 1,
         keystone_admin_token  => 'testmido',
-        keystone_host         => '127.0.0.1'
+        keystone_host         => '127.0.0.1',
+        max_heap_size         => '256M',
        }
       EOS
 

spec/acceptance/nodesets/default.yml

@@ -9,3 +9,14 @@ HOSTS:
 CONFIG:
   type: foss
   log_level: debug
+# HOSTS:
+#   centos-server-70-x64:
+#     roles:
+#       - master
+#     platform: el-7-x86_64
+#     box: puppetlabs/centos-7.0-64-nocm
+#     box_url: https://vagrantcloud.com/puppetlabs/centos-7.0-64-nocm
+#     hypervisor: vagrant
+# CONFIG:
+#   log_level: debug
+#   type: foss

spec/classes/midonet_agent_run_spec.rb

@@ -18,6 +18,7 @@ describe 'midonet::agent::run' do
       }
     end
     it { is_expected.to contain_file('agent_config').with_ensure('present') }
+    it { is_expected.to contain_file('jvm_config').with_ensure('present') }
     it { is_expected.to contain_service('midolman').with_ensure('running') }
   end
 end

spec/classes/midonet_cli_spec.rb

@@ -1,6 +1,6 @@
 require 'spec_helper'
 
-describe 'midonet::midonet_cli' do
+describe 'midonet::cli' do
 
   let :pre_condition do
     "include ::midonet::repository"
@@ -116,5 +116,6 @@ describe 'midonet::midonet_cli' do
     end
 
     it_configures 'set up midonet cli'
+    it { is_expected.to contain_package('epel-release').with_ensure('installed') }
   end
 end

templates/agent/midolman-env.sh.erb

@@ -0,0 +1,115 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you 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.
+
+MIDO_HOME=/usr/share/midolman
+MIDO_CFG=/etc/midolman
+MIDO_LOG_DIR=/var/log/midolman/
+MIDO_DEBUG_PORT=8001
+JMX_PORT="7200"
+MIDO_CFG_FILE=midolman.conf
+QUAGGA_DIR=/var/run/quagga
+# setting this option will make the agent not run under the watchdog
+#WATCHDOG_DISABLE=
+WATCHDOG_TIMEOUT=10
+
+# Amount of memory to allocate for the JVM heap.
+MAX_HEAP_SIZE="<%= @max_heap_size %>"
+
+# Here we create the arguments that will get passed to the jvm when
+# starting midolman.
+
+# enable assertions.  disabling this in production will give a modest
+# performance benefit (around 5%).
+# JVM_OPTS="$JVM_OPTS -ea"
+JVM_OPTS="$JVM_OPTS -XX:+AggressiveOpts"
+
+# enable thread priorities, primarily so we can give periodic tasks
+# a lower priority to avoid interfering with client workload
+JVM_OPTS="$JVM_OPTS -XX:+UseThreadPriorities"
+# allows lowering thread priority without being root.  see
+# http://tech.stolsvik.com/2010/01/linux-java-thread-priorities-workaround.html
+JVM_OPTS="$JVM_OPTS -XX:ThreadPriorityPolicy=42"
+
+# min and max heap sizes should be set to the same value to avoid
+# stop-the-world GC pauses during resize, and so that we can lock the
+# heap in memory on startup to prevent any of it from being swapped
+# out.
+JVM_OPTS="$JVM_OPTS -Xms${MAX_HEAP_SIZE}"
+JVM_OPTS="$JVM_OPTS -Xmx${MAX_HEAP_SIZE}"
+JVM_OPTS="$JVM_OPTS -XX:HeapDumpPath=/var/log/midolman/"
+JVM_OPTS="$JVM_OPTS -XX:+HeapDumpOnOutOfMemoryError"
+JVM_OPTS="$JVM_OPTS -XX:OnOutOfMemoryError=\"kill;-3;%p\""
+
+# Do not use biased locking
+JVM_OPTS="$JVM_OPTS -XX:-UseBiasedLocking"
+
+# GC tuning options
+JVM_OPTS="$JVM_OPTS -XX:+UseG1GC"
+JVM_OPTS="$JVM_OPTS -XX:MaxGCPauseMillis=500"
+JVM_OPTS="$JVM_OPTS -XX:InitiatingHeapOccupancyPercent=70"
+JVM_OPTS="$JVM_OPTS -XX:SurvivorRatio=8"
+JVM_OPTS="$JVM_OPTS -XX:MaxTenuringThreshold=8"
+JVM_OPTS="$JVM_OPTS -XX:+UseTLAB"
+JVM_OPTS="$JVM_OPTS -XX:+ResizeTLAB"
+JVM_OPTS="$JVM_OPTS -XX:TLABSize=2m"
+JVM_OPTS="$JVM_OPTS -XX:PretenureSizeThreshold=2m"
+
+# GC logging options
+JVM_OPTS="$JVM_OPTS -XX:+PrintGCDetails"
+JVM_OPTS="$JVM_OPTS -XX:+PrintGCTimeStamps"
+JVM_OPTS="$JVM_OPTS -XX:+PrintClassHistogram"
+JVM_OPTS="$JVM_OPTS -XX:+PrintTenuringDistribution"
+JVM_OPTS="$JVM_OPTS -XX:+PrintGCApplicationStoppedTime"
+JVM_OPTS="$JVM_OPTS -XX:+UseGCLogFileRotation"
+JVM_OPTS="$JVM_OPTS -XX:NumberOfGCLogFiles=10"
+JVM_OPTS="$JVM_OPTS -XX:GCLogFileSize=10M"
+JVM_OPTS="$JVM_OPTS -Xloggc:/var/log/midolman/gc-`date +%Y%m%d_%H%M%S`.log"
+
+# uncomment to have Midolman JVM listen for remote debuggers/profilers on port 1414
+# JVM_OPTS="$JVM_OPTS -Xdebug -Xnoagent -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=1414"
+
+# Prefer binding to IPv4 network intefaces (when net.ipv6.bindv6only=1). See
+# http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6342561 (short version:
+# comment out this entry to enable IPv6 support).
+# JVM_OPTS="$JVM_OPTS -Djava.net.preferIPv4Stack=true"
+
+# uncomment to disable JMX
+# JMXDISABLE=true
+
+# jmx: metrics and administration interface
+#
+# add this if you're having trouble connecting:
+# JVM_OPTS="$JVM_OPTS -Djava.rmi.server.hostname=<public name>"
+#
+# see
+# http://blogs.sun.com/jmxetc/entry/troubleshooting_connection_problems_in_jconsole
+# for more on configuring JMX through firewalls, etc. (Short version:
+# get it working with no firewall first.)
+if [ "x$JMXDISABLE" = "x" ] ; then
+    JVM_OPTS="$JVM_OPTS -Dcom.sun.management.jmxremote"
+    JVM_OPTS="$JVM_OPTS -Dcom.sun.management.jmxremote.local.only=$JMXLOCALONLY"
+    JVM_OPTS="$JVM_OPTS -Dcom.sun.management.jmxremote.port=$JMX_PORT"
+    JVM_OPTS="$JVM_OPTS -Dcom.sun.management.jmxremote.ssl=false"
+    JVM_OPTS="$JVM_OPTS -Dcom.sun.management.jmxremote.authenticate=false"
+    HOSTNAME=`hostname`
+    JVM_OPTS="$JVM_OPTS -Djava.rmi.server.hostname=$HOSTNAME"
+fi
+
+if [ "$MIDOLMAN_HPROF" = "1" ] ; then
+    DATE=$(date +'%H%M%S')
+    HPROF_FILENAME=${HPROF_FILENAME:-/tmp/midolman-$DATE.hprof}
+    JVM_OPTS="$JVM_OPTS -agentlib:hprof=cpu=samples,depth=100,interval=1,lineno=y,thread=y,file=$HPROF_FILENAME"
+fi

templates/cluster/midonet-cluster-env.sh.erb

@@ -0,0 +1,164 @@
+# Copyright 2015 Midokura SARL
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you 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.
+
+# The first existing directory is used for JAVA_HOME if needed.
+JVM_SEARCH_DIRS="/usr/lib/jvm/java-1.8.0-openjdk-amd64 /usr/lib/jvm/java-8-openjdk-amd64 \
+                 /usr/lib/jvm/java-8-oracle /usr/lib/jvm/zulu-8-amd64 \
+                 /usr/lib/jvm/jre-1.8.0-openjdk \
+                 /usr/lib/jvm/jre-8-oracle-x64 /usr/lib/jvm/jdk-8-oracle-x64"
+
+check_for_java8() {
+    [ "x" = "x$1" ] && return 1
+    [ -x "$1" ] || return 1
+    $1 -version 2>&1 | grep -q 'version "1.8'
+}
+
+if [ -n "`which java`" ]; then
+        java=`which java`
+        # Dereference symlink(s)
+        while true; do
+            if [ -h "$java" ]; then
+                java=`readlink -f "$java"`
+                continue
+            fi
+            break
+        done
+        CUR_JAVA_DIR=$(dirname $java | sed 's!\(/jre\)*/bin!!')
+        JVM_SEARCH_DIRS="$CUR_JAVA_DIR $JVM_SEARCH_DIRS"
+fi
+if [ ! -z "$JAVA_HOME" ]; then
+    JVM_SEARCH_DIRS="$JAVA_HOME $JVM_SEARCH_DIRS"
+fi
+
+oldopts=$-
+set +e
+JAVA_HOME=
+for jdir in $JVM_SEARCH_DIRS; do
+    check_for_java8 "$jdir/bin/java"
+    if [ $? -eq 0 ]; then
+        JAVA_HOME="$jdir"
+        break
+    fi
+done
+echo $oldopts | grep 'e' 2>&1 >/dev/null && set -e
+
+if [ -z "$JAVA_HOME" ] ; then
+    echo "No suitable JVM found (at least v1.8 required)"
+    exit 1
+fi
+
+JAVA="$JAVA_HOME/bin/java"
+
+# Override these to set the amount of memory to allocate to the JVM at
+# start-up. For production use you almost certainly want to adjust
+# this for your environment. MAX_HEAP_SIZE is the total amount of
+# memory dedicated to the Java heap; HEAP_NEWSIZE refers to the size
+# of the young generation. You should either set both MAX_HEAP_SIZE and
+# HEAP_NEWSIZE or none.
+MAX_HEAP_SIZE="<%= @max_heap_size %>"
+HEAP_NEWSIZE="<%= @heap_newsize %>"
+
+if [ "x$MAX_HEAP_SIZE" = "x" ] ||  [ "x$HEAP_NEWSIZE" = "x" ]; then
+    echo "please set MAX_HEAP_SIZE and HEAP_NEWSIZE, or none (see midonet-cluster-env.sh)"
+    exit 1
+fi
+
+# Specifies the default port over which JMX will be exposed
+JMX_PORT="7201"
+
+# Here we create the arguments that will get passed to the JVM
+
+# enable assertions.  disabling this in production will give a modest
+# performance benefit (around 5%).
+# JVM_OPTS="$JVM_OPTS -ea"
+JVM_OPTS="$JVM_OPTS -XX:+AggressiveOpts"
+
+# enable thread priorities, primarily so we can give periodic tasks
+# a lower priority to avoid interfering with client workload
+JVM_OPTS="$JVM_OPTS -XX:+UseThreadPriorities"
+# allows lowering thread priority without being root.  see
+# http://tech.stolsvik.com/2010/01/linux-java-thread-priorities-workaround.html
+JVM_OPTS="$JVM_OPTS -XX:ThreadPriorityPolicy=42"
+
+# min and max heap sizes should be set to the same value to avoid
+# stop-the-world GC pauses during resize, and so that we can lock the
+# heap in memory on startup to prevent any of it from being swapped
+# out.
+JVM_OPTS="$JVM_OPTS -Xms${MAX_HEAP_SIZE}"
+JVM_OPTS="$JVM_OPTS -Xmx${MAX_HEAP_SIZE}"
+JVM_OPTS="$JVM_OPTS -Xmn${HEAP_NEWSIZE}"
+JVM_OPTS="$JVM_OPTS -XX:HeapDumpPath=/var/log/midonet-cluster/"
+JVM_OPTS="$JVM_OPTS -XX:+HeapDumpOnOutOfMemoryError"
+JVM_OPTS="$JVM_OPTS -XX:OnOutOfMemoryError=\"kill;-3;%p\""
+
+# GC tuning options
+JVM_OPTS="$JVM_OPTS -XX:+UseG1GC"
+JVM_OPTS="$JVM_OPTS -XX:MaxGCPauseMillis=500"
+JVM_OPTS="$JVM_OPTS -XX:InitiatingHeapOccupancyPercent=70"
+JVM_OPTS="$JVM_OPTS -XX:SurvivorRatio=8"
+JVM_OPTS="$JVM_OPTS -XX:MaxTenuringThreshold=8"
+JVM_OPTS="$JVM_OPTS -XX:+UseTLAB"
+JVM_OPTS="$JVM_OPTS -XX:+ResizeTLAB"
+JVM_OPTS="$JVM_OPTS -XX:TLABSize=2m"
+JVM_OPTS="$JVM_OPTS -XX:PretenureSizeThreshold=2m"
+
+# GC logging options
+JVM_OPTS="$JVM_OPTS -XX:+PrintGCDetails"
+JVM_OPTS="$JVM_OPTS -XX:+PrintGCTimeStamps"
+JVM_OPTS="$JVM_OPTS -XX:+PrintClassHistogram"
+JVM_OPTS="$JVM_OPTS -XX:+PrintTenuringDistribution"
+JVM_OPTS="$JVM_OPTS -XX:+PrintGCApplicationStoppedTime"
+JVM_OPTS="$JVM_OPTS -XX:NumberOfGCLogFiles=10"
+JVM_OPTS="$JVM_OPTS -XX:GCLogFileSize=10M"
+JVM_OPTS="$JVM_OPTS -Xloggc:/var/log/midonet-cluster/gc-`date +%Y%m%d_%H%M%S`.log"
+
+# uncomment to have the JVM listen for remote debuggers/profilers on port 1414
+# JVM_OPTS="$JVM_OPTS -Xdebug -Xnoagent -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=1414"
+
+# Prefer binding to IPv4 network intefaces (when net.ipv6.bindv6only=1). See
+# http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6342561 (short version:
+# comment out this entry to enable IPv6 support).
+# JVM_OPTS="$JVM_OPTS -Djava.net.preferIPv4Stack=true"
+
+# uncomment to disable JMX
+# JMXDISABLE=true
+
+# jmx: metrics and administration interface
+#
+# add this if you're having trouble connecting:
+# JVM_OPTS="$JVM_OPTS -Djava.rmi.server.hostname=<public name>"
+#
+# see
+# http://blogs.sun.com/jmxetc/entry/troubleshooting_connection_problems_in_jconsole
+# for more on configuring JMX through firewalls, etc. (Short version:
+# get it working with no firewall first.)
+if [ "x$JMXDISABLE" = "x" ] ; then
+    JVM_OPTS="$JVM_OPTS -Dcom.sun.management.jmxremote"
+    JVM_OPTS="$JVM_OPTS -Dcom.sun.management.jmxremote.local.only=$JMXLOCALONLY"
+    JVM_OPTS="$JVM_OPTS -Dcom.sun.management.jmxremote.port=$JMX_PORT"
+    JVM_OPTS="$JVM_OPTS -Dcom.sun.management.jmxremote.ssl=false"
+    JVM_OPTS="$JVM_OPTS -Dcom.sun.management.jmxremote.authenticate=false"
+    HOSTNAME=`hostname`
+    JVM_OPTS="$JVM_OPTS -Djava.rmi.server.hostname=$HOSTNAME"
+fi
+
+if [ "$MIDOLMAN_HPROF" = "1" ] ; then
+    DATE=$(date +'%H%M%S')
+    HPROF_FILENAME=${HPROF_FILENAME:-/tmp/midonet-cluster-$DATE.hprof}
+    JVM_OPTS="$JVM_OPTS -agentlib:hprof=cpu=samples,depth=100,interval=1,lineno=y,thread=y,file=$HPROF_FILENAME"
+fi