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Diffstat (limited to 'lib/hadoop-0.20.0/contrib/hdfsproxy/bin/hdfsproxy-slaves.sh')
-rwxr-xr-x | lib/hadoop-0.20.0/contrib/hdfsproxy/bin/hdfsproxy-slaves.sh | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/lib/hadoop-0.20.0/contrib/hdfsproxy/bin/hdfsproxy-slaves.sh b/lib/hadoop-0.20.0/contrib/hdfsproxy/bin/hdfsproxy-slaves.sh new file mode 100755 index 0000000000..db54bd5b38 --- /dev/null +++ b/lib/hadoop-0.20.0/contrib/hdfsproxy/bin/hdfsproxy-slaves.sh @@ -0,0 +1,68 @@ +#!/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. + + +# Run a shell command on all slave hosts. +# +# Environment Variables +# +# HDFSPROXY_SLAVES File naming remote hosts. +# Default is ${HDFSPROXY_CONF_DIR}/hdfsproxy-hosts. +# HDFSPROXY_CONF_DIR Alternate conf dir. Default is ${HDFSPROXY_HOME}/conf. +# HDFSPROXY_SLAVE_SLEEP Seconds to sleep between spawning remote commands. +# HDFSPROXY_SSH_OPTS Options passed to ssh when running remote commands. +## + +usage="Usage: hdfsproxy-slaves.sh [--config confdir] command..." + +# if no args specified, show usage +if [ $# -le 0 ]; then + echo $usage + exit 1 +fi + +bin=`dirname "$0"` +bin=`cd "$bin"; pwd` + +. "$bin"/hdfsproxy-config.sh + +# If the slaves file is specified in the command line, +# then it takes precedence over the definition in +# hdfsproxy-env.sh. Save it here. +HOSTLIST=$HDFSPROXY_SLAVES + +if [ -f "${HDFSPROXY_CONF_DIR}/hdfsproxy-env.sh" ]; then + . "${HDFSPROXY_CONF_DIR}/hdfsproxy-env.sh" +fi + +if [ "$HOSTLIST" = "" ]; then + if [ "$HDFSPROXY_SLAVES" = "" ]; then + export HOSTLIST="${HDFSPROXY_CONF_DIR}/hdfsproxy-hosts" + else + export HOSTLIST="${HDFSPROXY_SLAVES}" + fi +fi + +for slave in `cat "$HOSTLIST"`; do + ssh $HDFSPROXY_SSH_OPTS $slave $"${@// /\\ }" \ + 2>&1 | sed "s/^/$slave: /" & + if [ "$HDFSPROXY_SLAVE_SLEEP" != "" ]; then + sleep $HDFSPROXY_SLAVE_SLEEP + fi +done + +wait |