脚本来自于阿里canal

    1. #!/bin/bash 
    3. current_path=`pwd`
    4. case "`uname`" in
    5.     Linux)
    6.         bin_abs_path=$(readlink -f $(dirname $0))
    7.         ;;
    8.     *)
    9.         bin_abs_path=`cd $(dirname $0); pwd`
    10.         ;;
    11. esac
    12. base=${bin_abs_path}/..
    13. canal_conf=$base/conf/canal.properties
    14. canal_local_conf=$base/conf/canal_local.properties
    15. logback_configurationFile=$base/conf/logback.xml
    16. export LANG=en_US.UTF-8
    17. export BASE=$base
    19. if [ -f $base/bin/canal.pid ] ; then
    20.     echo "found canal.pid , Please run stop.sh first ,then startup.sh" 2>&2
    21.     exit 1
    22. fi
    24. if [ ! -d $base/logs/canal ] ; then 
    25.     mkdir -p $base/logs/canal
    26. fi
    28. ## set java path
    29. if [ -z "$JAVA" ] ; then
    30.   JAVA=$(which java)
    31. fi
    33. ALIBABA_JAVA="/usr/alibaba/java/bin/java"
    34. TAOBAO_JAVA="/opt/taobao/java/bin/java"
    35. if [ -z "$JAVA" ]; then
    36.   if [ -f $ALIBABA_JAVA ] ; then
    37.       JAVA=$ALIBABA_JAVA
    38.   elif [ -f $TAOBAO_JAVA ] ; then
    39.       JAVA=$TAOBAO_JAVA
    40.   else
    41.       echo "Cannot find a Java JDK. Please set either set JAVA or put java (>=1.5) in your PATH." 2>&2
    42.     exit 1
    43.   fi
    44. fi
    46. case "$#" 
    47. in
    48. 0 ) 
    49.     ;;
    50. 1 )    
    51.     var=$*
    52.     if [ "$var" = "local" ]; then
    53.         canal_conf=$canal_local_conf
    54.     else
    55.         if [ -f $var ] ; then 
    56.             canal_conf=$var
    57.         else
    58.             echo "THE PARAMETER IS NOT CORRECT.PLEASE CHECK AGAIN."
    59.             exit
    60.         fi
    61.     fi;;
    62. 2 )    
    63.     var=$1
    64.     if [ "$var" = "local" ]; then
    65.         canal_conf=$canal_local_conf
    66.     else
    67.         if [ -f $var ] ; then
    68.             canal_conf=$var
    69.         else 
    70.             if [ "$1" = "debug" ]; then
    71.                 DEBUG_PORT=$2
    72.                 DEBUG_SUSPEND="n"
    73.                 JAVA_DEBUG_OPT="-Xdebug -Xnoagent -Djava.compiler=NONE -Xrunjdwp:transport=dt_socket,address=$DEBUG_PORT,server=y,suspend=$DEBUG_SUSPEND"
    74.             fi
    75.         fi
    76.      fi;;
    77. * )
    78.     echo "THE PARAMETERS MUST BE TWO OR LESS.PLEASE CHECK AGAIN."
    79.     exit;;
    80. esac
    82. str=`file -L $JAVA | grep 64-bit`
    83. if [ -n "$str" ]; then
    84.     JAVA_OPTS="-server -Xms2048m -Xmx3072m -Xmn1024m -XX:SurvivorRatio=2 -XX:PermSize=96m -XX:MaxPermSize=256m -Xss256k -XX:-UseAdaptiveSizePolicy -XX:MaxTenuringThreshold=15 -XX:+DisableExplicitGC -XX:+UseConcMarkSweepGC -XX:+CMSParallelRemarkEnabled -XX:+UseCMSCompactAtFullCollection -XX:+UseFastAccessorMethods -XX:+UseCMSInitiatingOccupancyOnly -XX:+HeapDumpOnOutOfMemoryError"
    85. else
    86.     JAVA_OPTS="-server -Xms1024m -Xmx1024m -XX:NewSize=256m -XX:MaxNewSize=256m -XX:MaxPermSize=128m "
    87. fi
    89. JAVA_OPTS=" $JAVA_OPTS -Djava.awt.headless=true -Djava.net.preferIPv4Stack=true -Dfile.encoding=UTF-8"
    90. CANAL_OPTS="-DappName=otter-canal -Dlogback.configurationFile=$logback_configurationFile -Dcanal.conf=$canal_conf"
    92. if [ -e $canal_conf -a -e $logback_configurationFile ]
    93. then 
    95.     for i in $base/lib/*;
    96.         do CLASSPATH=$i:"$CLASSPATH";
    97.     done
    98.      CLASSPATH="$base/conf:$CLASSPATH";
    100.      echo "cd to $bin_abs_path for workaround relative path"
    101.       cd $bin_abs_path
    103.     echo LOG CONFIGURATION : $logback_configurationFile
    104.     echo canal conf : $canal_conf 
    105.     echo CLASSPATH :$CLASSPATH
    106.     $JAVA $JAVA_OPTS $JAVA_DEBUG_OPT $CANAL_OPTS -classpath .:$CLASSPATH com.alibaba.otter.canal.deployer.CanalLauncher 1>>$base/logs/canal/canal_stdout.log 2>&1 &
    107.     echo $! > $base/bin/canal.pid 
    109.     echo "cd to $current_path for continue"
    110.       cd $current_path
    111. else 
    112.     echo "canal conf("$canal_conf") OR log configration file($logback_configurationFile) is not exist,please create then first!"
    113. fi