Re: Another rsync over ssh hang (repeatable, with 2.4.1 on both

Scott Laird (laird@internap.com)
Fri, 2 Mar 2001 10:35:33 -0800 (PST)


On Fri, 2 Mar 2001 kuznet@ms2.inr.ac.ru wrote:
> > together to put 2.2.18 on this machine. I can't guarantee when I'll
> > be able to do this though.
>
> You planned to make more accurate strace on Monday, if I remember correctly.
> Now it is not necessary, Scott's one is enough to understand that
> some problem exists and cannot be explained by buggy 2.2.15.

One data point on my hang -- I increased
/proc/sys/net/core/wmem_{max,default} from 64k to 256k, and then increased
/proc/sys/net/ipv5/tcp_wmem from "4096 16384 131072" to "16384 65536
262144", and the hangs seem to have either stopped or (more likely)
drastically reduced in frequency. I was able to rsync a couple GB without
stalling.

I can perform more tests, if anyone has anything in particular that they'd
like to see.

Scott

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