Ian Nelson wrote:
>
> What exactly does the TCPSchedulerFailed metric mean?
> I'm building a network appliance that is doing a lot of nmap and nessus
> type stuff and I'm getting an extreme number of TCPSchedulerFailed and
> TCPAbortOnData. I've been tracking what I think is a bug in an Ethernet
> driver but I'm starting to think it's a software problem in application
> land.
Its the number of packets that are prequeued (partially completed
tcp processing, waiting for a recvmsg to complete & send ack etc)
when the delayed ack timer goes off. i.e I think, the thinking is
this shouldnt happen, since the delayed ack timer really shouldnt
go off - the receiver should have picked up the skb's and sent
the acks. I'm probably off by a mile here..Dont know.
It may be related to the AbortOnData counts. Are you closing apps
with linger off or something?
thanks,
Nivedita
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