public int getAgentPackageParallelCommandsLimit() {
    int value = Integer.parseInt(getProperty(AGENT_PACKAGE_PARALLEL_COMMANDS_LIMIT));
    if (value < 1) {
      value = 1;
    }
    return value;
  }
Get the threadpool size for external script execution
@return {Integer}
ambari-server/src/main/java/org/apache/ambari/server/configuration/Configuration.java