* @return {@code true} if the lock was acquired.
     */
    public boolean tryStartOperation(final String operationName, final String data) {
        final int maxRetry = ComponentUtil.getFessConfig().getCoordinatorOperationRetryAsInteger();
        return tryStartOperation(operationName, data, maxRetry);
    }

    /**
     * Internal method to acquire a distributed lock with retry control.
     *