bigtop-packages/src/common/hadoop/hadoop-httpfs.svc

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# 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
#
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# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# limitations under the License.
HADOOP_NAME="httpfs"
DAEMON="hadoop-$HADOOP_NAME"
DESC="Hadoop $HADOOP_NAME"
EXEC_PATH="/usr/lib/hadoop-httpfs/sbin/httpfs.sh"
SVC_USER="$HADOOP_NAME"
WORKING_DIR="/var/run/hadoop-httpfs"
DAEMON_FLAGS="$HADOOP_NAME"
CONF_DIR="/etc/$DAEMON/conf"
PIDFILE="/var/run/$DAEMON/hadoop-$SVC_USER-$HADOOP_NAME.pid"

CHKCONFIG=${CHKCONFIG:-"2345 90 10"}
CHKCONFIG="${CHKCONFIG%% *} 90 10"

generate_start() {

cat <<'__EOT__'
start() {
  [ -x $EXEC_PATH ] || exit $ERROR_PROGRAM_NOT_INSTALLED
  [ -d $CONF_DIR ] || exit $ERROR_PROGRAM_NOT_CONFIGURED

  export HTTPFS_USER="$SVC_USER"
  export HTTPFS_CONFIG="$CONF_DIR"
  export HTTPFS_LOG=${HTTPFS_LOG:-"/var/log/hadoop-httpfs/"}
  export HTTPFS_TEMP="$(dirname $PIDFILE)"
  export HTTPFS_SLEEP_TIME="$SLEEP_TIME"
  export CATALINA_BASE=${CATALINA_BASE:-"/var/lib/hadoop-httpfs/tomcat-deployment"}
  export CATALINA_PID="$PIDFILE"
  export CATALINA_TMPDIR="$HTTPFS_TEMP"

  . /usr/lib/hadoop-httpfs/tomcat-deployment.sh

  su -s /bin/bash -c "${EXEC_PATH} start $DAEMON_FLAGS" $HTTPFS_USER

  for second in {5..0}
  do
    checkstatusofproc
    RETVAL=$?
    if [ "$RETVAL" -eq $RETVAL_SUCCESS ] ; then
      break
    fi
    sleep 1
  done

  if [ $RETVAL -eq $STATUS_RUNNING ]; then
    touch $LOCKFILE
    log_success_msg "Started ${DESC} (${DAEMON}): "
  else
    log_failure_msg "Failed to start ${DESC}. Return value: $RETVAL"
  fi

  return $RETVAL
}
__EOT__

}

generate_stop() {

cat <<'__EOT__'
stop() {

  # FIXME: workaround for BIGTOP-537
  checkstatusofproc
  if [ "$?" = "$STATUS_RUNNING" ] ; then
    su -s /bin/bash $SVC_USER -c "${EXEC_PATH} stop $SLEEP_TIME -force"
    RETVAL=$?
  else
    RETVAL=$RETVAL_SUCCESS
  fi

  if [ $RETVAL -eq $RETVAL_SUCCESS ]; then
    log_success_msg "Stopped ${DESC}: "
    rm -f $LOCKFILE $PIDFILE
  else
    log_failure_msg "Failure to stop ${DESC}. Return value: $RETVAL"
  fi
}
__EOT__

}