We are using 5.0.3 universal forwarder to send data to our 5.0.3 cluster environment.
We have enabled useACK because it is recommended as mentioned in splunk's documentation when using cluster but after enabling useACK we are seeing's our universal forwarder's parsing queue and tcpout queue quite full and data is getting indexed with delays.
We have already set thruput value in limits.conf to "maxKBps = 0" and we have checked with our network administrator that we don't have any network issues.
Our indexers seem to be working fine without any full queues. How can I fix this issue ?