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#!/bin/sh
set -eu
if [ ${DEBUG:+1} ]; then
set -xo pipefail
fi
if [ "$#" -ne 1 ]; then
echo "Usage: 'sh ${PWD}/$0 <num-partitions>'"
exit 1
fi
NUM_PARTITIONS="$1"
INPUT_PATH="gs://${BUCKET_NAME}/input/"
OUTPUT_PATH="gs://${BUCKET_NAME}/output"
if [ -z "${BUCKET_NAME}" ] || [ -z "${CLUSTER}" ] || [ -z "${REGION}" ]; then
echo "Error: BUCKET_NAME, CLUSTER, and REGION environment variables must be set."
exit 1
fi
if gsutil ls "${OUTPUT_PATH}" > /dev/null 2>&1; then
echo ">>>> Output folder already exists. Renaming..."
UUID=$(cat /proc/sys/kernel/random/uuid)
NEW_OUTPUT_PATH="${OUTPUT_PATH}-${UUID}"
echo ">>>> Copying existing output folder to ${NEW_OUTPUT_PATH}..."
if gsutil -m cp -r "${OUTPUT_PATH}/" "${NEW_OUTPUT_PATH}/"; then
echo ">>>> Deleting original output folder..."
if gsutil -m rm -r "${OUTPUT_PATH}"; then
echo ">>>> Original output folder successfully renamed to ${NEW_OUTPUT_PATH}"
else
echo "Error: Failed to delete the original output folder after copying."
exit 1
fi
else
echo "Error: Failed to copy the output folder to ${NEW_OUTPUT_PATH}."
exit 1
fi
fi
gcloud dataproc jobs submit spark \
--cluster="${CLUSTER}" \
--jar="gs://${BUCKET_NAME}/scala/co-purchase-analysis_2.12-1.0.jar" \
--region="${REGION}" \
--properties="spark.hadoop.fs.gs.impl=com.google.cloud.hadoop.fs.gcs.GoogleHadoopFileSystem" \
-- "${INPUT_PATH}" "${OUTPUT_PATH}" "${NUM_PARTITIONS}"
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