What is the limit on matching service?

we see this error from cadence matching. what does this mean? we did increase our default rps limit on both front end and match service. Our CPU is low. Not sure why we get this error?

service: cadence-matching
stacktrace: github.com/uber/cadence/common/log/loggerimpl.(*loggerImpl).Error

Task queues support partitioning. By default, each task queue is served by a single partition, use dynamic config to increase the value for the high throughput task queues.