Adds init scripts (#2939)

examples/bin/broker.sh

@@ -0,0 +1,10 @@
+#!/bin/bash -eu
+
+usage="Usage: broker.sh (start|stop)"
+
+if [ $# -lt 1 ]; then
+  echo $usage
+  exit 1
+fi
+
+sh ./bin/node.sh broker $1

examples/bin/coordinator.sh

@@ -0,0 +1,10 @@
+#!/bin/bash -eu
+
+usage="Usage: coordinator.sh (start|stop)"
+
+if [ $# -lt 1 ]; then
+  echo $usage
+  exit 1
+fi
+
+sh ./bin/node.sh coordinator $1

examples/bin/historical.sh

@@ -0,0 +1,10 @@
+#!/bin/bash -eu
+
+usage="Usage: historical.sh (start|stop)"
+
+if [ $# -lt 1 ]; then
+  echo $usage
+  exit 1
+fi
+
+sh ./bin/node.sh historical $1

examples/bin/init

@@ -4,9 +4,11 @@ gzip -c -d quickstart/wikiticker-2015-09-12-sampled.json.gz > "quickstart/wikiti
 
 LOG_DIR=var
 
+mkdir log
 mkdir -p $LOG_DIR/tmp;
 mkdir -p $LOG_DIR/druid/indexing-logs;
 mkdir -p $LOG_DIR/druid/segments;
 mkdir -p $LOG_DIR/druid/segment-cache;
 mkdir -p $LOG_DIR/druid/task;
 mkdir -p $LOG_DIR/druid/hadoop-tmp;
+mkdir -p $LOG_DIR/druid/pids;

examples/bin/middleManager.sh

@@ -0,0 +1,10 @@
+#!/bin/bash -eu
+
+usage="Usage: middleManager.sh (start|stop)"
+
+if [ $# -lt 1 ]; then
+  echo $usage
+  exit 1
+fi
+
+sh ./bin/node.sh middleManager $1

examples/bin/node.sh

@@ -0,0 +1,56 @@
+#!/bin/bash -eu
+
+## Initializtion script for druid nodes
+## Runs druid nodes as a daemon and pipes logs to log/ directory
+
+usage="Usage: node.sh nodeType (start|stop)"
+
+if [ $# -le 1 ]; then
+  echo $usage
+  exit 1
+fi
+
+nodeType=$1
+shift
+
+startStop=$1
+pid=var/druid/pids/$nodeType.pid
+
+case $startStop in
+
+  (start)
+
+    if [ -f $pid ]; then
+      if kill -0 `cat $pid` > /dev/null 2>&1; then
+        echo $nodeType node running as process `cat $pid`.  Stop it first.
+        exit 1
+      fi
+    fi
+
+    nohup java `cat conf/druid/$nodeType/jvm.config | xargs` -cp conf/druid/_common:conf/druid/$nodeType:lib/* io.druid.cli.Main server $nodeType > log/$nodeType.log &
+    nodeType_PID=$!
+    echo $nodeType_PID > $pid
+    echo "Started $nodeType node ($nodeType_PID)"
+    ;;
+
+  (stop)
+
+    if [ -f $pid ]; then
+      TARGET_PID=`cat $pid`
+      if kill -0 $TARGET_PID > /dev/null 2>&1; then
+        echo Stopping process `cat $pid`...
+        kill $TARGET_PID
+      else
+        echo No $nodeType node to stop
+      fi
+      rm -f $pid
+    else
+      echo No $nodeType node to stop
+    fi
+    ;;
+
+  (*)
+    echo $usage
+    exit 1
+    ;;
+esac

examples/bin/overlord.sh

@@ -0,0 +1,10 @@
+#!/bin/bash -eu
+
+usage="Usage: overlord.sh (start|stop)"
+
+if [ $# -lt 1 ]; then
+  echo $usage
+  exit 1
+fi
+
+sh ./bin/node.sh overlord $1