Shell script to create a ccm cluster fit for Reaper integration tests

create-reaper-test-cluster.sh

#!/usr/bin/env bash
set -x

while test $# -gt 0; do
  case "$1" in
    -h|--help)
      echo "create-reaper-test-cluster.sh: automation script for creating Reaper ccm clusters for integration tests"
      echo " "
      echo " "
      echo "options:"
      echo "-h, --help                                  show brief help"
      echo "--version=CASSANDRA_VERSION                 specify the version of Cassandra to install"
      exit 0
      ;;
    --version*)
      export VERSION=`echo $1 | sed -e 's/^[^=]*=//g'`
      shift
      ;;
    *)
      break
      ;;
  esac
done

ccm stop
ccm switch test
ccm remove
ccm create test -v $VERSION  > /dev/null
# use "2:0" to ensure the first datacenter name is "dc1" instead of "datacenter1", so to be compatible with CircleCI tests
ccm populate --vnodes -n 2:0 > /dev/null
for i in {1..2} ; do
  sed -i '' 's/jmxremote.authenticate=true/jmxremote.authenticate=false/' ~/.ccm/test/node$i/conf/cassandra-env.sh
  sed -i '' 's/#MAX_HEAP_SIZE="4G"/MAX_HEAP_SIZE="256m"/' ~/.ccm/test/node$i/conf/cassandra-env.sh
  sed -i '' 's/#HEAP_NEWSIZE="800M"/HEAP_NEWSIZE="200M"/' ~/.ccm/test/node$i/conf/cassandra-env.sh
  sed -i '' 's/_timeout_in_ms:.*/_timeout_in_ms: 60000/' ~/.ccm/test/node$i/conf/cassandra.yaml
  sed -i '' 's/start_rpc: true/start_rpc: false/' ~/.ccm/test/node$i/conf/cassandra.yaml
  sed -i '' 's/cross_node_timeout: false/cross_node_timeout: true/' ~/.ccm/test/node$i/conf/cassandra.yaml
  sed -i '' 's/concurrent_reads: 32/concurrent_reads: 4/' ~/.ccm/test/node$i/conf/cassandra.yaml
  sed -i '' 's/concurrent_writes: 32/concurrent_writes: 4/' ~/.ccm/test/node$i/conf/cassandra.yaml
  sed -i '' 's/concurrent_counter_writes: 32/concurrent_counter_writes: 4/' ~/.ccm/test/node$i/conf/cassandra.yaml
  sed -i '' 's/num_tokens: 256/num_tokens: 4/' ~/.ccm/test/node$i/conf/cassandra.yaml
  sed -i '' 's/auto_snapshot: true/auto_snapshot: false/' ~/.ccm/test/node$i/conf/cassandra.yaml
  sed -i '' 's/enable_materialized_views: true/enable_materialized_views: false/' ~/.ccm/test/node$i/conf/cassandra.yaml
  sed -i '' 's/internode_compression: dc/internode_compression: none/' ~/.ccm/test/node$i/conf/cassandra.yaml
  sed -i '' 's/# file_cache_size_in_mb: 512/file_cache_size_in_mb: 1/' ~/.ccm/test/node$i/conf/cassandra.yaml
  echo 'phi_convict_threshold: 16' >> ~/.ccm/test/node$i/conf/cassandra.yaml
done
export LOCAL_JMX=no
ccm start