Re: nblade.execsOverLimit: The number of in-flight requests from client with source IP x.x.x.x

From the Vmware side, you are correct you will need to to set MaxQueueDepth parameter for each share from ESXCLI :
Example:

[root@esx1:~]esxcli storage nfs param get -v <volume_name>
Volume Name MaxQueueDepth MaxReadTransferSize MaxWriteTransferSize
----------- ------------- ------------------- --------------------
volume_name 4294967295 131072 131072

[root@esx1:~]esxcli storage nfs param set -v <volume_name> -q 128

[root@esx1:~]esxcli storage nfs param get -v <volume_name>
Volume Name MaxQueueDepth MaxReadTransferSize MaxWriteTransferSize
----------- ------------- ------------------- --------------------
volume_name 128 131072 131072

 Hope this answer your question.

Thanks