@Override
    public List<String> getRunningWorkflowIds(String workflowName, int version) {
        Preconditions.checkNotNull(workflowName, "workflowName cannot be null");
        List<String> workflowIds;
        recordRedisDaoRequests("getRunningWorkflowsByName");
        Set<String> pendingWorkflows = jedisProxy.smembers(nsKey(PENDING_WORKFLOWS, workflowName));
        workflowIds = new LinkedList<>(pendingWorkflows);
        return workflowIds;
    }
@param workflowName name of the workflow
@param version the workflow version
@return list of workflow ids that are in RUNNING state <em>returns workflows of all versions
    for the given workflow name</em>
redis-persistence/src/main/java/com/netflix/conductor/redis/dao/RedisExecutionDAO.java