Tcpout Processor:The TCP output processor has paused the data flow.Forwardering to output group default-autolb-group has been blocked for 10 seconds.This will probably stall the data flow woeardds index ing and other net work outputs.
Please check if you have only one server added below the autoLb = true (my case)
Also run
./splunk cmd btool check
to check any inconsistencies in the configuration files which might be causing it.
Is there a question? This message is usually logged by a forwarder when the indexer cannot keep up with the inbound data stream and internal queues fill up.
If you tell us a bit more about your deployment, we may be able to better help.