[Lustre-discuss] Client Eviction Preceded by EHOSTUNREACH and then ENOTCONN?
isaac_huang at xyratex.com
Tue Jul 12 11:01:40 PDT 2011
On Mon, Jul 11, 2011 at 03:39:34PM -0700, Rick Wagner wrote:
> I am assuming that -113 is EHOSTUNREACH and -107 is ENOTCONN, and that the error codes from errno.h are being used.
> We've been experiencing similar problems for a while, and we've never seen IP traffic have a problem. But, clients will begin to have trouble communicating with the Lustre server (seen because an LNET ping will return an I/O error), and things will only recover when an LNET ping is performed from the server to the client NID.
I'd suggest to enable console logging of network errors, by 'echo
+neterror > /proc/sys/lnet/printk'. Then some detailed debug messages
should show up in 'dmesg' when you have LNET connectivity problems.
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