spark-instrumented-optimizer/sbin/spark-config.sh
Bryan Cutler c76baff0cc [SPARK-17336][PYSPARK] Fix appending multiple times to PYTHONPATH from spark-config.sh
## What changes were proposed in this pull request?
During startup of Spark standalone, the script file spark-config.sh appends to the PYTHONPATH and can be sourced many times, causing duplicates in the path.  This change adds a env flag that is set when the PYTHONPATH is appended so it will happen only one time.

## How was this patch tested?
Manually started standalone master/worker and verified PYTHONPATH has no duplicate entries.

Author: Bryan Cutler <cutlerb@gmail.com>

Closes #15028 from BryanCutler/fix-duplicate-pythonpath-SPARK-17336.
2016-09-11 10:19:39 +01:00

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#
# 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.
#
# included in all the spark scripts with source command
# should not be executable directly
# also should not be passed any arguments, since we need original $*
# symlink and absolute path should rely on SPARK_HOME to resolve
if [ -z "${SPARK_HOME}" ]; then
export SPARK_HOME="$(cd "`dirname "$0"`"/..; pwd)"
fi
export SPARK_CONF_DIR="${SPARK_CONF_DIR:-"${SPARK_HOME}/conf"}"
# Add the PySpark classes to the PYTHONPATH:
if [ -z "${PYSPARK_PYTHONPATH_SET}" ]; then
export PYTHONPATH="${SPARK_HOME}/python:${PYTHONPATH}"
export PYTHONPATH="${SPARK_HOME}/python/lib/py4j-0.10.3-src.zip:${PYTHONPATH}"
export PYSPARK_PYTHONPATH_SET=1
fi