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#!/bin/bash
# Function to display usage
display_usage() {
echo "Usage: $0 <DEPLOYMENT_MODE> <JOB_OR_YARN_APP_NAME>"
echo "DEPLOYMENT_MODE: standalone, yarn-per-job, or yarn-session"
}
# Function to stop Flink jobs based on deployment mode
stop_jobs() {
case $1 in
standalone)
"$FLINK_HOME"/bin/flink list -r -m "$FLINK_STANDALONE_JOB_MANAGER_ADDRESS" | grep "$job_or_yarn_app_name" | awk '{print $4}' | while read -r jobId
do
"$FLINK_HOME"/bin/flink cancel "$jobId" -m "$FLINK_STANDALONE_JOB_MANAGER_ADDRESS"
echo "Stopped Flink job with JobID: $jobId"
done
;;
yarn-per-job)
# Command to stop YARN applications for the specified Yarn cluster app name
yarn application -list -appStates RUNNING | grep "$job_or_yarn_app_name" | awk '{print $1}' | while read -r appId
do
yarn application -kill "$appId"
echo "Stopped YARN application with ApplicationID: $appId"
done
;;
yarn-session)
"$FLINK_HOME"/bin/flink list -r -yid "$YARN_SESSION_CLUSTER_ID" | grep "$job_or_yarn_app_name" | awk '{print $4}' | while read -r jobId
do
"$FLINK_HOME"/bin/flink cancel "$jobId" -yid "$YARN_SESSION_CLUSTER_ID"
echo "Stopped Flink job with JobID: $jobId"
done
;;
*)
echo "Invalid DEPLOYMENT_MODE. Choose from: standalone, yarn-per-job, yarn-session"
exit 1
;;
esac
}
set -euo pipefail
# resolve links - $0 may be a softlink
PRG=$(readlink -f "$0")
PRG_DIR=$(dirname "$PRG")
APP_DIR=$(cd "$PRG_DIR/.." && pwd)
CONF_DIR="$APP_DIR/config"
# Source environment variables if available
if [ -f "${CONF_DIR}/grootstream_env.sh" ]; then
. "${CONF_DIR}/grootstream_env.sh"
fi
# Check dependencies
if ! command -v yarn &> /dev/null || ! command -v flink &> /dev/null || [ -z "${FLINK_HOME:-}" ]; then
echo "Flink or YARN not found or FLINK_HOME environment variable not set properly. Please check your environment setup."
exit 1
fi
# Validate input arguments
if [ "$#" -ne 2 ]; then
display_usage
exit 1
fi
# Assigning input arguments to variables
deployment_mode=$1 # standalone, yarn-per-job, or yarn-session
job_or_yarn_app_name=$2 # Standalone job name or YARN application name
# Checking for empty input arguments
if [ -z "$deployment_mode" ] || [ -z "$job_or_yarn_app_name" ]; then
display_usage
exit 1
fi
# Execute stop_jobs function with provided arguments
stop_jobs "$deployment_mode" "$job_or_yarn_app_name"
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