xcat-core/xCAT-rmc/plugin/rmcmon.pm
2008-02-08 17:59:49 +00:00

357 lines
11 KiB
Perl

#!/usr/bin/env perl
# IBM(c) 2007 EPL license http://www.eclipse.org/legal/epl-v10.html
package xCAT_monitoring::rmcmon;
BEGIN
{
$::XCATROOT = $ENV{'XCATROOT'} ? $ENV{'XCATROOT'} : '/opt/xcat';
}
use lib "$::XCATROOT/lib/perl";
use xCAT::NodeRange;
use Socket;
use xCAT::Utils;
use xCAT::GlobalDef;
print "xCAT_monitoring::rmcmon loaded\n";
1;
#-------------------------------------------------------------------------------
=head1 xCAT_monitoring:rmcmon
=head2 Package Description
xCAT monitoring plugin package to handle RMC monitoring.
=cut
#-------------------------------------------------------------------------------
#--------------------------------------------------------------------------------
=head3 start
This function gets called by the monitorctrl module
when xcatd starts. It starts the daemons and does
necessary startup process for the RMC monitoring.
It also queries the RMC for its currently monitored
nodes which will, in tern, compared with the nodes
in the input parameter. It asks RMC to add or delete
nodes according to the comparison so that the nodes
monitored by RMC are in sync with the nodes currently
in the xCAT cluster.
Arguments:
monservers --A hash reference keyed by the monitoring server nodes
and each value is a ref to an array of [nodes, nodetype] arrays
monitored by the server. So the format is:
{monserver1=>[['node1', 'osi'], ['node2', 'switch']...], ...}
Returns:
(return code, message)
=cut
#--------------------------------------------------------------------------------
sub start {
print "rmcmon::start called\n";
$noderef=shift;
if ($noderef =~ /xCAT_monitoring::rmcmon/) {
$noderef=shift;
}
#TODO: get a list of monservers + nodes and compare them with RMC. remove/add
# if necessary.
#assume the server is the current node.
#check if rsct is installed and running
if (! -e "/usr/bin/lsrsrc") {
return (1, "RSCT is not is not installed.\n");
}
my $result=`/usr/bin/lssrc -s ctrmc`;
if ($result !~ /active/) {
#restart rmc daemon
$result=`startsrc -s ctrmc`;
if ($?) {
return (1, "rmc deamon cannot be started\n");
}
}
#get a list of managed nodes
$result=`/usr/bin/lsrsrc-api -s IBM.MngNode::::Name`;
chomp($result);
my @rmc_nodes=split(/\n/, $result);
foreach (keys(%$noderef)) {
my $server=$_;
my $mon_nodes=$noderef->{$_};
foreach(@$mon_nodes) {
my $node_pair=$_;
my $node=$node_pair->[0];
my $nodetype=$node_pair->[1];
}
}
#TODO: start condition-response assosciations
return (0, "started");
}
#--------------------------------------------------------------------------------
=head3 stop
This function gets called by the monitorctrl module when
xcatd stops. It stops the monitoring on all nodes, stops
the daemons and does necessary cleanup process for the
RMC monitoring.
Arguments:
none
Returns:
(return code, message)
=cut
#--------------------------------------------------------------------------------
sub stop {
print "rmcmon::stop called\n";
#TODO: stop condition-response associtations.
return (0, "stopped");
}
#--------------------------------------------------------------------------------
=head3 supportNodeStatusMon
This function is called by the monitorctrl module to check
if RMC can help monitoring and returning the node status.
Arguments:
none
Returns:
1
=cut
#--------------------------------------------------------------------------------
sub supportNodeStatusMon {
print "rmcmon::supportNodeStatusMon called\n";
return 1;
}
#--------------------------------------------------------------------------------
=head3 startNodeStatusMon
This function is called by the monitorctrl module to tell
RMC to start monitoring the node status and feed them back
to xCAT. RMC will start setting up the condition/response
to monitor the node status changes.
Arguments:
monservers --A hash reference keyed by the monitoring server nodes
and each value is a ref to an array of [nodes, nodetype] arrays
monitored by the server. So the format is:
{monserver1=>[['node1', 'osi'], ['node2', 'switch']...], ...}
Returns:
(return code, message)
=cut
#--------------------------------------------------------------------------------
sub startNodeStatusMon {
print "rmcmon::startNodeStatusMon called\n";
return (0, "started");
}
#--------------------------------------------------------------------------------
=head3 stopNodeStatusMon
This function is called by the monitorctrl module to tell
RMC to stop feeding the node status info back to xCAT. It will
stop the condition/response that is monitoring the node status.
Arguments:
none
Returns:
(return code, message)
=cut
#--------------------------------------------------------------------------------
sub stopNodeStatusMon {
print "rmcmon::stopNodeStatusMon called\n";
return (0, "stopped");
}
#--------------------------------------------------------------------------------
=head3 addNodes
This function gdds the nodes into the RMC cluster.
Arguments:
nodes --nodes to be added. It is a hash reference keyed by the monitoring server
nodes and each value is a ref to an array of [nodes, nodetype] arrays monitored
by the server. So the format is:
{monserver1=>[['node1', 'osi'], ['node2', 'switch']...], ...}
verbose -- verbose mode. 1 for yes, 0 for no.
Returns:
none
=cut
#--------------------------------------------------------------------------------
sub addNodes {
$noderef=shift;
if ($noderef =~ /xCAT_monitoring::rmcmon/) {
$noderef=shift;
}
my $VERBOSE=shift;
if ($VERBOSE) { print "rmcmon::addNodes called $noderef=$noderef\n"};
foreach (keys(%$noderef)) {
my $server=$_;
if ($VERBOSE) { print " monitoring server: $server\n";}
#check if rsct is installed and running
if (! -e "/usr/bin/lsrsrc") {
print "RSCT is not is not installed.\n";
next;
}
my $result=`/usr/bin/lssrc -s ctrmc`;
if ($result !~ /active/) {
#restart rmc daemon
$result=`startsrc -s ctrmc`;
if ($?) {
print "rmc deamon cannot be started\n";
next;
}
}
#enable remote client connection
`/usr/bin/rmcctrl -p`;
#get ms node id, hostname, ip etc
#TODO: currently one server which is where xcatd is. later changes to use server for hierachy
my $ms_node_id=`head -n 1 /var/ct/cfg/ct_node_id`;
chomp($ms_node_id);
my $ms_host_name=`hostname`;
chomp($ms_host_name);
my ($ms_name,$ms_aliases,$ms_addrtype,$ms_length,@ms_addrs) = gethostbyname($ms_host_name);
chomp($ms_name);
my $ms_ipaddresses="{";
foreach (@ms_addrs) {
$ms_ipaddresses .= '"' .inet_ntoa($_) . '",';
}
chop($ms_ipaddresses);
$ms_ipaddresses .= "}";
#if ($VERBOSE) {
# print " ms_host_name=$ms_host_name, ms_nam=$ms_name, ms_aliases=$ms_aliases, ms_ip_addr=$ms_ipaddresses, ms_node_id=$ms_node_id\n";
#}
my $mon_nodes=$noderef->{$_};
foreach(@$mon_nodes) {
my $node_pair=$_;
my $node=$node_pair->[0];
my $nodetype=$node_pair->[1];
if ((!$nodetype) || ($nodetype =~ /$::NODETYPE_OSI/)) {
#RMC deals only with osi type. empty type is treated as osi type
#TODO: check if the node is installed and ready for configuring monitor
`fping -a $node 2> /dev/null`;
if ($?) {
print "Cannot add the node $node into the RMC domian. The node is inactive.\n";
next;
}
#get info for the node
$mn_node_id=`psh $node "head -n 1 /var/ct/cfg/ct_node_id" 2>&1`;
$mn_node_id =~ s/.*([0-9 a-g]{16}).*/$1/s;
my ($mn_name,$mn_aliases,$mn_addrtype,$mn_length,@mn_addrs) = gethostbyname($node);
chomp($mn_name);
my $mn_ipaddresses="{";
foreach (@mn_addrs) {
$mn_ipaddresses .= '"'.inet_ntoa($_) . '",';
}
chop($mn_ipaddresses);
$mn_ipaddresses .= "}";
#if ($VERBOSE) {
# print " mn_name=$mn_name, mn_aliases=$mn_aliases, mn_ipaddr=$mn_ipaddresses, mn_node_id=$mn_node_id\n";
#}
# define resource in IBM.MngNode class on server
$result=`mkrsrc-api IBM.MngNode::Name::"$node"::KeyToken::"$node"::IPAddresses::"$mn_ipaddresses"::NodeID::0x$mn_node_id`;
print "define resource in IBM.MngNode class result=$result\n";
#copy the configuration script and run it locally
$result=`scp $::XCATROOT/lib/perl/xCAT_monitoring/rmc/configrmcnode $node:/tmp`;
if ($resul>0) {
print "rmcmon:addNodes: cannot copy the file configrmcnode to node $node\n";
next;
}
$result=`psh $node /tmp/configrmcnode -a $node $ms_host_name $ms_ipaddresses 0x$ms_node_id`;
print "$result\n";
}
}
}
return 0;
}
#--------------------------------------------------------------------------------
=head3 removeNodes
This function removes the nodes from the RMC cluster.
Arguments:
nodes --nodes to be removed. It is a hash reference keyed by the monitoring server
nodes and each value is a ref to an array of [nodes, nodetype] arrays monitored
by the server. So the format is:
{monserver1=>[['node1', 'osi'], ['node2', 'switch']...], ...}
verbose -- verbose mode. 1 for yes, 0 for no.
Returns:
none
=cut
#--------------------------------------------------------------------------------
sub removeNodes {
$noderef=shift;
if ($noderef =~ /xCAT_monitoring::rmcmon/) {
$noderef=shift;
}
my $VERBOSE=shift;
#if ($VERBOSE) { print "rmcmon::removeNodes called $noderef=$noderef\n"};
foreach (keys(%$noderef)) {
$server=$_;
#print " monitoring server: $server\n";
my $mon_nodes=$noderef->{$_};
foreach(@$mon_nodes) {
my $node_pair=$_;
my $node=$node_pair->[0];
my $nodetype=$node_pair->[1];
#if ($VERBOSE) { print " node=$node, nodetype=$nodetype\n"; }
if ((!$nodetype) || ($nodetype =~ /$::NODETYPE_OSI/)) {
#RMC deals only with osi type. empty type is treated as osi type
#TODO: check if the node is installed and ready for configuring monitor
`fping -a $node 2> /dev/null`;
if ($?) {
print "Cannot remove node $node from the RMC domian. The node is inactive.\n";
next;
}
#remove resource in IBM.MngNode class on server
my $result=`rmrsrc-api -s IBM.MngNode::"Name=\\\"\"$node\\\"\""`;
if ($VERBOSE) { print "remove resource in IBM.MngNode class result=$result\n"; }
#copy the configuration script and run it locally
$result=`scp $::XCATROOT/lib/perl/xCAT_monitoring/rmc/configrmcnode $node:/tmp`;
if ($resul>0) {
print "rmcmon:removeNodes: cannot copy the file configrmcnode to node $node\n";
next;
}
$result=`psh --nonodecheck $node /tmp/configrmcnode -d $node`;
print "$result\n";
}
}
}
return 0;
}