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Diffstat (limited to 'lib/hadoop-0.20.0/contrib/hdfsproxy/bin/hdfsproxy-daemon.sh')
-rwxr-xr-xlib/hadoop-0.20.0/contrib/hdfsproxy/bin/hdfsproxy-daemon.sh141
1 files changed, 141 insertions, 0 deletions
diff --git a/lib/hadoop-0.20.0/contrib/hdfsproxy/bin/hdfsproxy-daemon.sh b/lib/hadoop-0.20.0/contrib/hdfsproxy/bin/hdfsproxy-daemon.sh
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+#!/usr/bin/env bash
+
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements. See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+# Runs a HdfsProxy as a daemon.
+#
+# Environment Variables
+#
+# HDFSPROXY_CONF_DIR Alternate conf dir. Default is ${HDFSPROXY_HOME}/conf.
+# HDFSPROXY_LOG_DIR Where log files are stored. PWD by default.
+# HDFSPROXY_MASTER host:path where hdfsproxy code should be rsync'd from
+# HDFSPROXY_PID_DIR The pid files are stored. /tmp by default.
+# HDFSPROXY_IDENT_STRING A string representing this instance of hdfsproxy. $USER by default
+# HDFSPROXY_NICENESS The scheduling priority for daemons. Defaults to 0.
+##
+
+usage="Usage: hdfsproxy-daemon.sh [--config <conf-dir>] [--hosts hostlistfile] (start|stop) "
+
+# if no args specified, show usage
+if [ $# -le 1 ]; then
+ echo $usage
+ exit 1
+fi
+
+bin=`dirname "$0"`
+bin=`cd "$bin"; pwd`
+
+. "$bin"/hdfsproxy-config.sh
+
+# get arguments
+startStop=$1
+shift
+
+hdfsproxy_rotate_log ()
+{
+ log=$1;
+ num=5;
+ if [ -n "$2" ]; then
+ num=$2
+ fi
+ if [ -f "$log" ]; then # rotate logs
+ while [ $num -gt 1 ]; do
+ prev=`expr $num - 1`
+ [ -f "$log.$prev" ] && mv "$log.$prev" "$log.$num"
+ num=$prev
+ done
+ mv "$log" "$log.$num";
+ fi
+}
+
+if [ -f "${HDFSPROXY_CONF_DIR}/hdfsproxy-env.sh" ]; then
+ . "${HDFSPROXY_CONF_DIR}/hdfsproxy-env.sh"
+fi
+
+# get log directory
+if [ "$HDFSPROXY_LOG_DIR" = "" ]; then
+ export HDFSPROXY_LOG_DIR="$HDFSPROXY_HOME/logs"
+fi
+mkdir -p "$HDFSPROXY_LOG_DIR"
+
+if [ "$HDFSPROXY_PID_DIR" = "" ]; then
+ HDFSPROXY_PID_DIR=/tmp
+fi
+
+if [ "$HDFSPROXY_IDENT_STRING" = "" ]; then
+ export HDFSPROXY_IDENT_STRING="$USER"
+fi
+
+# some variables
+export HDFSPROXY_LOGFILE=hdfsproxy-$HDFSPROXY_IDENT_STRING-$HOSTNAME.log
+export HDFSPROXY_ROOT_LOGGER="INFO,DRFA"
+log=$HDFSPROXY_LOG_DIR/hdfsproxy-$HDFSPROXY_IDENT_STRING-$HOSTNAME.out
+pid=$HDFSPROXY_PID_DIR/hdfsproxy-$HDFSPROXY_IDENT_STRING.pid
+
+# Set default scheduling priority
+if [ "$HDFSPROXY_NICENESS" = "" ]; then
+ export HDFSPROXY_NICENESS=0
+fi
+
+case $startStop in
+
+ (start)
+
+ mkdir -p "$HDFSPROXY_PID_DIR"
+
+ if [ -f $pid ]; then
+ if kill -0 `cat $pid` > /dev/null 2>&1; then
+ echo hdfsproxy running as process `cat $pid`. Stop it first.
+ exit 1
+ fi
+ fi
+
+ if [ "$HDFSPROXY_MASTER" != "" ]; then
+ echo rsync from $HDFSPROXY_MASTER
+ rsync -a -e ssh --delete --exclude=.svn --exclude='logs/*' --exclude='contrib/hod/logs/*' $HDFSPROXY_MASTER/ "$HDFSPROXY_HOME"
+ fi
+
+ hdfsproxy_rotate_log $log
+ echo starting hdfsproxy, logging to $log
+ cd "$HDFSPROXY_HOME"
+ nohup nice -n $HDFSPROXY_NICENESS "$HDFSPROXY_HOME"/bin/hdfsproxy --config $HDFSPROXY_CONF_DIR "$@" > "$log" 2>&1 < /dev/null &
+ echo $! > $pid
+ sleep 1; head "$log"
+ ;;
+
+ (stop)
+
+ if [ -f $pid ]; then
+ if kill -0 `cat $pid` > /dev/null 2>&1; then
+ echo stopping hdfsproxy
+ kill `cat $pid`
+ else
+ echo no hdfsproxy to stop
+ fi
+ else
+ echo no hdfsproxy to stop
+ fi
+ ;;
+
+ (*)
+ echo $usage
+ exit 1
+ ;;
+
+esac
+
+