I have deployed hot rod , is there any way to throttel the request sending from sender side

You will need to configure some otel-collector processors. These would be a good starting point: • Batch (group) a chunk of metrics to reduce request load - e.g if you generate 1000 metrics in 1 minute, you can batch it into 1 update of a 1000, 2 updates of 500, 4 updates of 250, or whatever you want - https://github.com/open-telemetry/opentelemetry-collector/tree/main/processor/batchprocessor • Memory Limiter - puts a cap on the amount of unsent data so as no to keep growing, resets when data is sent - if the limit is 100Mb, it will stop accepting metrics after hitting that amount until the current 100Mb is sent to the exporters - https://github.com/open-telemetry/opentelemetry-collector/tree/main/processor/memorylimiterprocessor