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|
#!/bin/bash
DIRNAME=`dirname $0`
RUNHOME=`cd $DIRNAME/; pwd`
LOG_DIR=${RUNHOME}/tomcat/logs
RETRY=$1
CURL_RETRY_COUNT=1
SLEEP_SECONDS_IN_MONITOR=2
if [ x"$HTTP_OVERWRITE_PORT" == x"" ]; then
apds_port=80
else
apds_port=$HTTP_OVERWRITE_PORT
fi
#####################################
echo @RUNHOME@ $RUNHOME
echo @LOG_DIR@ $LOG_DIR
echo @apds_port@ $apds_port
#####################################
print_log() {
LOG_DATE=`date "+%Y-%m-%d %H:%M:%S"`
LOG_FILENAME="$LOG_DIR/apds-monitor-`date "+%Y-%m-%d"`.log"
######[$$]:����id
###### $n ���ݸ��ű������IJ���, $1Ϊ�������ƣ�Ĭ��ΪFUNCNAME[0] $2Ϊ��־�������
###### $? �����ķ���ֵ
###### FUNCNAME[@]: ��������ջ��
###### {} ��һ���ո����д�ű�
{ echo -e $LOG_DATE "[$$]===${FUNCNAME[@]}=== $2 "; } >> $LOG_FILENAME
}
apds_monitor() {
print_log ${FUNCNAME[0]} "Starting health check. ==$1==";
if [ "$1" == "with-retry" ]; then
CURL_RETRY_COUNT=5
fi
for i in `seq $CURL_RETRY_COUNT`
do
success=0
response=$(curl -m 2 -sL 127.0.0.1:$apds_port/blueprint/readme.txt -w %{http_code} -o /dev/null)
rc=$?
if [ $rc -eq 0 ];then
print_log "${FUNCNAME[0]}" "Info: Curl to health check endpoint succeeded.";
success=1
break
else
print_log "${FUNCNAME[0]}" "Warn: Curl to health check endpoint failed $i time(s).";
if [ "$1" == "with-retry" ]; then
sleep $SLEEP_SECONDS_IN_MONITOR
fi
fi
done
if [ $success -eq 0 ];then
print_log "${FUNCNAME[0]}" "Failed: health check Endpoint is unreachable.";
return 1
fi
if [ $response -eq 200 ]; then
print_log "${FUNCNAME[0]}" "health check succeed.";
return 0
fi
print_log "${FUNCNAME[0]}" "Failed:health check return non 200 but is : $response ";
return 1
}
if [ ! -d "$LOG_DIR" ]; then
echo there is no $LOG_DIR but will be created, You can ignore this message!
mkdir -p "$LOG_DIR"
fi
apds_monitor $RETRY
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