IM-server-new/distribution/src/main/scripts/moquette.sh

#!/bin/sh
#
# Copyright (c) 2012-2015 Andrea Selva
#

echo "                                                                         "
echo "  ___  ___                       _   _        ___  ________ _____ _____  "
echo "  |  \/  |                      | | | |       |  \/  |  _  |_   _|_   _| "
echo "  | .  . | ___   __ _ _   _  ___| |_| |_ ___  | .  . | | | | | |   | |   "
echo "  | |\/| |/ _ \ / _\ | | | |/ _ \ __| __/ _ \ | |\/| | | | | | |   | |   "
echo "  | |  | | (_) | (_| | |_| |  __/ |_| ||  __/ | |  | \ \/' / | |   | |   "
echo "  \_|  |_/\___/ \__, |\__,_|\___|\__|\__\___| \_|  |_/\_/\_\ \_/   \_/   "
echo "                   | |                                                   "
echo "                   |_|                                                   "
echo "                                                                         "
echo "                                               version: 0.12.1           "


cd "$(dirname "$0")"

# resolve links - $0 may be a softlink
PRG="$0"

while [ -h "$PRG" ]; do
  ls=`ls -ld "$PRG"`
  link=`expr "$ls" : '.*-> \(.*\)$'`
  if expr "$link" : '/.*' > /dev/null; then
    PRG="$link"
  else
    PRG=`dirname "$PRG"`/"$link"
  fi
done

# Get standard environment variables
PRGDIR=`dirname "$PRG"`

# Only set MOQUETTE_HOME if not already set
[ -f "$MOQUETTE_HOME"/bin/moquette.sh ] || MOQUETTE_HOME=`cd "$PRGDIR/.." ; pwd`
export MOQUETTE_HOME

# Set JavaHome if it exists
if [ -f "${JAVA_HOME}/bin/java" ]; then 
   JAVA=${JAVA_HOME}/bin/java
else
   JAVA=java
fi
export JAVA

LOG_FILE=$MOQUETTE_HOME/config/moquette-log.properties
MOQUETTE_PATH=$MOQUETTE_HOME/
#LOG_CONSOLE_LEVEL=info
#LOG_FILE_LEVEL=fine
JAVA_OPTS_SCRIPT="-XX:+HeapDumpOnOutOfMemoryError -Djava.awt.headless=true"

## Use the Hotspot garbage-first collector.
JAVA_OPTS="$JAVA_OPTS -XX:+UseG1GC"

## Have the JVM do less remembered set work during STW, instead
## preferring concurrent GC. Reduces p99.9 latency.
JAVA_OPTS="$JAVA_OPTS -XX:G1RSetUpdatingPauseTimePercent=5"

## Main G1GC tunable: lowering the pause target will lower throughput and vise versa.
## 200ms is the JVM default and lowest viable setting
## 1000ms increases throughput. Keep it smaller than the timeouts.
JAVA_OPTS="$JAVA_OPTS -XX:MaxGCPauseMillis=500"

## Optional G1 Settings

# Save CPU time on large (>= 16GB) heaps by delaying region scanning
# until the heap is 70% full. The default in Hotspot 8u40 is 40%.
#JAVA_OPTS="$JAVA_OPTS -XX:InitiatingHeapOccupancyPercent=70"

# For systems with > 8 cores, the default ParallelGCThreads is 5/8 the number of logical cores.
# Otherwise equal to the number of cores when 8 or less.
# Machines with > 10 cores should try setting these to <= full cores.
#JAVA_OPTS="$JAVA_OPTS -XX:ParallelGCThreads=16"

# By default, ConcGCThreads is 1/4 of ParallelGCThreads.
# Setting both to the same value can reduce STW durations.
#JAVA_OPTS="$JAVA_OPTS -XX:ConcGCThreads=16"

### GC logging options -- uncomment to enable

JAVA_OPTS="$JAVA_OPTS -XX:+PrintGCDetails"
JAVA_OPTS="$JAVA_OPTS -XX:+PrintGCDateStamps"
JAVA_OPTS="$JAVA_OPTS -XX:+PrintHeapAtGC"
JAVA_OPTS="$JAVA_OPTS -XX:+PrintTenuringDistribution"
JAVA_OPTS="$JAVA_OPTS -XX:+PrintGCApplicationStoppedTime"
JAVA_OPTS="$JAVA_OPTS -XX:+PrintPromotionFailure"
#JAVA_OPTS="$JAVA_OPTS -XX:PrintFLSStatistics=1"
#JAVA_OPTS="$JAVA_OPTS -Xloggc:/var/log/moquette/gc.log"
JAVA_OPTS="$JAVA_OPTS -Xloggc:$MOQUETTE_HOME/gc.log"
JAVA_OPTS="$JAVA_OPTS -XX:+UseGCLogFileRotation"
JAVA_OPTS="$JAVA_OPTS -XX:NumberOfGCLogFiles=10"
JAVA_OPTS="$JAVA_OPTS -XX:GCLogFileSize=10M"

$JAVA -server $JAVA_OPTS $JAVA_OPTS_SCRIPT -Dlog4j.configuration="file:$LOG_FILE" -Dmoquette.path="$MOQUETTE_PATH" -cp "$MOQUETTE_HOME/lib/*" io.moquette.broker.Server