10-21-2011
showq shows less active nodes as normal
Hi,
I am new in system administration. I observe that some nodes in our cluster
are not considered as active by showq:
22 active jobs 217 of 257 processors in use by local jobs (84.44%)
15 of 17 nodes active (88.24%)
but then I try to log into each of the nodes by ssh and they are working,
well at least I can log in.
Is there any command to know what is happening with the nodes
besides showq? I have tried
pbsnodes and it shows some nodes as exclusive and the others as free but none of
them as down.
We are running:
Red Hat Enterprise Linux Workstation release 6.1 of 64 bit.
thanks.
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LEARN ABOUT DEBIAN
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)