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Full Discussion: Issue with ftp hanging
Top Forums UNIX for Advanced & Expert Users Issue with ftp hanging Post 302948587 by hicksd8 on Tuesday 30th of June 2015 03:01:48 PM
Old 06-30-2015
Yea, but.......yea, but......

It's obvious that pings will get slower when other traffic is on the link, ie, the ftp job, and that doesn't tell us anything.

If the ftp is running from node A to node B then I'd set up ping scripts in both directions. The question is what happens to ping response times when the ftp job 'hangs'? Do the pings stop completely (lost packets), or return to full speed (ftp is producing no traffic so ping is fast)?

At that time what speed are pings from node C to node A? And node C to node B? Does this show that the network interface on A or B has completely screwed up and not communicating at all? Or do both interfaces still work but ftp is hung?

Unfortunately, I think you need to run this test to destruction (until the ftp is completely stuffed and 'hung') and then see if you can get either or both interfaces to talk. If one node won't communicate then that's the node to investigate.
Last edited by hicksd8; 06-30-2015 at 04:32 PM..
 

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LEARN ABOUT CENTOS

di_minor_next

di_minor_next(3DEVINFO) 			       Device Information Library Functions				   di_minor_next(3DEVINFO)

NAME

       di_minor_next - libdevinfo minor node traversal functions

SYNOPSIS

       cc [ flag... ] file... -ldevinfo [ library... ]
       #include <libdevinfo.h>

       di_minor_t di_minor_next(di_node_t node, di_minor_t minor);

PARAMETERS

       minor	Handle to the current minor node or DI_MINOR_NIL.

       node	Device node with which the minor node is associated.

DESCRIPTION

       The  di_minor_next()  function  returns a handle to the next minor node for the device node node. If minor is DI_MINOR_NIL, a handle to the
       first minor node is returned.

RETURN VALUES

       Upon successful completion, a  handle to the next minor node is returned. Otherwise, DI_MINOR_NIL is returned and errno is set to  indicate
       the error.

ERRORS

       The di_minor_next() function will fail if:

       EINVAL	       Invalid argument.

       ENOTSUP	       Minor node information is not available in snapshot.

       ENXIO	       End of minor node list.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Evolving			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       libdevinfo(3LIB), attributes(5)

       Writing Device Drivers

SunOS 5.10							    1 Dec 1998						   di_minor_next(3DEVINFO)
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