@Override
protected NodeResponse nodeOperation(NodeRequest nodeRequest) throws ElasticsearchException {
Request req = nodeRequest.getRequest();
logger.debug("Go to look for Sysinfo river '{}' on this node", req.getRiverName());
IRiverMgm river = SysinfoRiver.getRunningInstance(req.getRiverName());
if (river == null) {
logger.debug("Sysinfo River {} not found on this node", req.getRiverName());
return newNodeResponse();
} else {
logger.debug("Sysinfo River {} found on this node, go to call mgm operation on it {}", req.getRiverName(), req);