flink-end-to-end-tests/test-scripts/test_high_parallelism_iterations.sh

#!/usr/bin/env bash
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source "$(dirname "$0")"/common.sh

PARALLELISM="${1:-25}"

TEST=flink-high-parallelism-iterations-test
TEST_PROGRAM_NAME=HighParallelismIterationsTestProgram
TEST_PROGRAM_JAR=${END_TO_END_DIR}/$TEST/target/$TEST_PROGRAM_NAME.jar

set_conf "taskmanager.heap.mb" "52" # 52Mb x 100 TMs = 5Gb total heap

set_conf "taskmanager.memory.size" "8" # 8Mb
set_conf "taskmanager.network.memory.min" "8mb"
set_conf "taskmanager.network.memory.max" "8mb"
set_conf "taskmanager.memory.segment-size" "8kb"

set_conf "taskmanager.network.netty.server.numThreads" "1"
set_conf "taskmanager.network.netty.client.numThreads" "1"
set_conf "taskmanager.network.request-backoff.max" "60000"

set_conf "taskmanager.numberOfTaskSlots" "1"

print_mem_use
start_cluster
print_mem_use

let TMNUM=$PARALLELISM-1
echo "Start $TMNUM more task managers"
for i in `seq 1 $TMNUM`; do
    $FLINK_DIR/bin/taskmanager.sh start
    print_mem_use
done

$FLINK_DIR/bin/flink run -p $PARALLELISM $TEST_PROGRAM_JAR
print_mem_use