SSI or not?? Post: 302665403

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Special Forums UNIX and Linux Applications High Performance Computing SSI or not?? Post 302665403 by navic on Monday 2nd of July 2012 12:28:22 PM

07-02-2012

Registered User

SSI or not??

I'm new to HPC so forgive me if this question is extremely simple.

I have a cluster and each node has multiple NICs. I need the master to be able to see the nodes NICs as if they were it's own. The vision is being able to run ifconfig and see a bunch of ethX entries on the master when in fact say eth1 - eth15 are located on other nodes.

While researching a solution I came across OpenSSI and thought this would provide the correct functionality, but the only thing I can do is list the local interfaces on nodes with the 'node X ifconfig' command.

Is SSI even the technology that'll make node interfaces look local to the master or am I barking up the wrong tree? Does anyone have experience with a system as described?

Thanks!

navic

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votequorum_leaving

VOTEQUORUM_LEAVING(3)				    Corosync Cluster Engine Programmer's Manual 			     VOTEQUORUM_LEAVING(3)

NAME

       votequorum_leaving - Tell other nodes that we are leaving the cluster

SYNOPSIS

       #include <corosync/votequorum.h>

       int votequorum_leaving(votequorum_handle_t handle);

DESCRIPTION

       The votequorum_leaving function is used to tell the other nodes in the cluster that this node is leaving. They will (when the node actually
       leaves) reduce quorum to keep the cluster running without this node.

       This function should only be called if it is known that the node is being shut down for a known reason and could be out of the cluster  for
       an extended period of time.

       Normal behaviour is for the cluster to reduce the total number of votes, but NOT expected_votes when a node leave the cluster, so the clus-
       ter could become inquorate. This is correct behaviour and is ther eto prevent split-brain.

       Do NOT call this function unless you know what you are doing.

RETURN VALUE

       This call returns the CS_OK value if successful, otherwise an error is returned.

ERRORS

       The errors are undocumented.

SEE ALSO

       votequorum_overview(8), votequorum_initialize(3), votequorum_finalize(3), votequorum_dispatch(3), votequorum_fd_get(3),

corosync Man Page						    2009-01-26						     VOTEQUORUM_LEAVING(3)