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94b3c74cdc
* Add status command to launch scripts * make druid init script to pick up config directories from environment variables make druid init script to pick up config directories from environment variables
81 lines
1.8 KiB
Bash
81 lines
1.8 KiB
Bash
#!/bin/bash -eu
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## Initialization script for druid nodes
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## Runs druid nodes as a daemon
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## Environment Variables used by this script -
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## DRUID_LIB_DIR - directory having druid jar files, default=lib
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## DRUID_CONF_DIR - directory having druid config files, default=conf/druid
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## DRUID_LOG_DIR - directory used to store druid logs, default=log
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## DRUID_PID_DIR - directory used to store pid files, default=var/druid/pids
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usage="Usage: node.sh nodeType (start|stop|status)"
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if [ $# -le 1 ]; then
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echo $usage
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exit 1
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fi
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nodeType=$1
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shift
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command=$1
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LIB_DIR="${DRUID_LIB_DIR:=lib}"
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CONF_DIR="${DRUID_CONF_DIR:=conf/druid}"
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LOG_DIR="${DRUID_LOG_DIR:=log}"
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PID_DIR="${DRUID_PID_DIR:=var/druid/pids}"
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pid=$PID_DIR/$nodeType.pid
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case $command in
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(start)
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if [ -f $pid ]; then
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if kill -0 `cat $pid` > /dev/null 2>&1; then
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echo $nodeType node running as process `cat $pid`. Stop it first.
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exit 1
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fi
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fi
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nohup java `cat $CONF_DIR/$nodeType/jvm.config | xargs` -cp $CONF_DIR/_common:$CONF_DIR/$nodeType:$LIB_DIR/* io.druid.cli.Main server $nodeType > $LOG_DIR/$nodeType.log &
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nodeType_PID=$!
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echo $nodeType_PID > $pid
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echo "Started $nodeType node ($nodeType_PID)"
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;;
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(stop)
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if [ -f $pid ]; then
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TARGET_PID=`cat $pid`
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if kill -0 $TARGET_PID > /dev/null 2>&1; then
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echo Stopping process `cat $pid`...
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kill $TARGET_PID
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else
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echo No $nodeType node to stop
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fi
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rm -f $pid
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else
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echo No $nodeType node to stop
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fi
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;;
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(status)
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if [ -f $pid ]; then
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if kill -0 `cat $pid` > /dev/null 2>&1; then
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echo RUNNING
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exit 0
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else
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echo STOPPED
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fi
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else
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echo STOPPED
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fi
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;;
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(*)
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echo $usage
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exit 1
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;;
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esac
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