internal splunk sockets stuck in CLOSE_WAIT

Why does splunkd close internal sockets before the receive queue has been emptied? This appears to leave them laying around in CLOSE_WAIT state instead of moving directly to CLOSE.

$ netstat -tap |awk 'NR<3||/:8089/'
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address               Foreign Address             State       PID/Program name   
tcp        0      0 example.com:8089            *:*                         LISTEN      14836/splunkd
tcp       38      0 example.com:54043           example.com:8089            CLOSE_WAIT  14927/python
tcp       38      0 example.com:54092           example.com:8089            CLOSE_WAIT  14927/python
tcp       38      0 example.com:54097           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:54106           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:54041           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:54019           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:54042           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:54044           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:53727           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:54073           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:53499           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:54103           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:53495           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:53959           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:54098           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:53257           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:54094           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:54102           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:53498           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:53496           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:54016           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:54017           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:54096           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:53730           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:54108           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:54104           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:53729           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:53084           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:54095           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:53258           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:54090           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:53255           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:53728           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:53726           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:53962           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:54039           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:54034           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:53964           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:54101           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:54099           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:53961           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:54107           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:54105           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:53497           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:53492           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:53963           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:53254           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:54018           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:54087           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:53256           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:54093           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:54091           example.com:8089            CLOSE_WAIT  14927/python        
tcp       38      0 example.com:54100           example.com:8089            CLOSE_WAIT  14927/python