b6c07fff4b
git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@1526 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd
553 lines
17 KiB
Perl
553 lines
17 KiB
Perl
#!/usr/bin/env perl
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# IBM(c) 2007 EPL license http://www.eclipse.org/legal/epl-v10.html
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package xCAT_monitoring::rmcmon;
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BEGIN
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{
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$::XCATROOT = $ENV{'XCATROOT'} ? $ENV{'XCATROOT'} : '/opt/xcat';
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}
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use lib "$::XCATROOT/lib/perl";
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use xCAT::NodeRange;
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use Sys::Hostname;
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use Socket;
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use xCAT::Utils;
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use xCAT::GlobalDef;
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use xCAT_monitoring::monitorctrl;
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use xCAT::MsgUtils;
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#print "xCAT_monitoring::rmcmon loaded\n";
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1;
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#now the RMC domain can automatically setup when xCAT starts. predefined conditions and sensor are defined on ms.
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#TODO: conveting all print statement to logging
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#TODO: predefined responses
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#TODO: node status monitoring for xCAT.
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#TODO: script to define sensors on the nodes.
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#TODO: how to push the sensor scripts to nodes?
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#TODO: what to do when stop is called? stop all the associations or just the ones that were predefined? or leve them there?
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#TODO: do we need to stop all the RMC daemons when stop is called?
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#I will come back to work on these once I have SNMP stuff done.
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#-------------------------------------------------------------------------------
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=head1 xCAT_monitoring:rmcmon
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=head2 Package Description
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xCAT monitoring plugin package to handle RMC monitoring.
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=cut
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#-------------------------------------------------------------------------------
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#--------------------------------------------------------------------------------
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=head3 start
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This function gets called by the monitorctrl module
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when xcatd starts. It starts the daemons and does
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necessary startup process for the RMC monitoring.
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It also queries the RMC for its currently monitored
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nodes which will, in tern, compared with the nodes
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in the input parameter. It asks RMC to add or delete
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nodes according to the comparison so that the nodes
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monitored by RMC are in sync with the nodes currently
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in the xCAT cluster.
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Arguments:
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None.
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Returns:
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(return code, message)
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=cut
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#--------------------------------------------------------------------------------
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sub start {
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#print "rmcmon::start called\n";
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my $noderef=xCAT_monitoring::monitorctrl->getMonHierarchy();
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#assume the server is the current node.
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#check if rsct is installed and running
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if (! -e "/usr/bin/lsrsrc") {
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return (1, "RSCT is not is not installed.\n");
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}
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my $result=`/usr/bin/lssrc -s ctrmc`;
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if ($result !~ /active/) {
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#restart rmc daemon
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$result=`startsrc -s ctrmc`;
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if ($?) {
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return (1, "rmc deamon cannot be started\n");
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}
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}
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#enable remote client connection
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`/usr/bin/rmcctrl -p`;
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#get a list of managed nodes
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$result=`/usr/bin/lsrsrc-api -s IBM.MngNode::::Name 2>&1`;
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if ($?) {
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if ($result !~ /2612-023/) {#2612-023 no resources found error
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xCAT::MsgUtils->message('S', "[mon]: $result\n");
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return (1,$result);
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}
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$result='';
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}
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chomp($result);
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my @rmc_nodes=split(/\n/, $result);
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#print "all defined nodes=@rmc_nodes\n";
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my $localhostname=hostname();
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my $mon_nodes=$noderef->{$localhostname};
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#check what has changed
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my %summary;
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foreach (@rmc_nodes) { $summary{$_}=-1;}
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if ($mon_nodes) {
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foreach(@$mon_nodes) {
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my $node=$_->[0];
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my $nodetype=$_->[1];
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if ((!$nodetype) || ($nodetype =~ /$::NODETYPE_OSI/)) {
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$summary{$node}++;
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}
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}
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}
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my @nodes_to_add=();
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my @nodes_to_remove=();
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foreach(keys(%summary)) {
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#print "node=$_ summary=$summary{$_}\n";
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if ($summary{$_}==1) {push(@nodes_to_add, $_);}
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elsif ($summary{$_}==-1) {push(@nodes_to_remove, $_);}
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}
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#add new nodes to the RMC cluster
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if (@nodes_to_add>0) {
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my %nodes_status=xCAT_monitoring::rmcmon::pingNodeStatus(@nodes_to_add);
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my $active_nodes=$nodes_status{$::STATUS_ACTIVE};
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my $inactive_nodes=$nodes_status{$::STATUS_INACTIVE};
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if (@$inactive_nodes>0) {
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xCAT::MsgUtils->message('S', "[mon]: The following nodes cannot be added to the RMC cluster because they are inactive:\n @$inactive_nodes\n");
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}
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if (@$active_nodes>0) {
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#print "active nodes to add:\n @$active_nodes\n";
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addNodes_noChecking(@$active_nodes);
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}
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}
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#remove unwanted nodes to the RMC cluster
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if (@nodes_to_remove>0) {
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#print "nodes to remove @nodes_to_remove\n";
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removeNodes_noChecking(@nodes_to_remove);
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}
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#start condition-response assosciations
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my $result=`$::XCATROOT/sbin/rmcmon/mkrmcresources $::XCATROOT/lib/perl/xCAT_monitoring/rmc/resources/ms 2>&1`;
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if ($?) {
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xCAT::MsgUtils->message('S', "[mon]: Error when creating predefined resources on $localhostname:\n$result\n");
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}
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return (0, "started");
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}
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#--------------------------------------------------------------------------------
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=head3 pingNodeStatus
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This function takes an array of nodes and returns their status using fping.
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Arguments:
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nodes-- an array of nodes.
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Returns:
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a hash that has the node status. The format is:
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{active=>[node1, node3,...], unreachable=>[node4, node2...]}
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=cut
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#--------------------------------------------------------------------------------
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sub pingNodeStatus {
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my ($class, @mon_nodes)=@_;
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%status=();
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my @active_nodes=();
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my @inactive_nodes=();
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if ((@mon_nodes)&& (@mon_nodes > 0)) {
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#get all the active nodes
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my $nodes= join(' ', @mon_nodes);
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my $temp=`fping -a $nodes 2> /dev/null`;
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chomp($temp);
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@active_nodes=split(/\n/, $temp);
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#get all the inactive nodes by substracting the active nodes from all.
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my %temp2;
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if ((@active_nodes) && ( @active_nodes > 0)) {
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foreach(@active_nodes) { $temp2{$_}=1};
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foreach(@mon_nodes) {
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if (!$temp2{$_}) { push(@inactive_nodes, $_);}
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}
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}
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else {@inactive_nodes=@mon_nodes;}
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}
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$status{$::STATUS_ACTIVE}=\@active_nodes;
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$status{$::STATUS_INACTIVE}=\@inactive_nodes;
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return %status;
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}
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#--------------------------------------------------------------------------------
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=head3 stop
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This function gets called by the monitorctrl module when
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xcatd stops. It stops the monitoring on all nodes, stops
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the daemons and does necessary cleanup process for the
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RMC monitoring.
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Arguments:
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none
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Returns:
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(return code, message)
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=cut
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#--------------------------------------------------------------------------------
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sub stop {
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#print "rmcmon::stop called\n";
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#TODO: stop condition-response associtations.
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return (0, "stopped");
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}
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#--------------------------------------------------------------------------------
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=head3 supportNodeStatusMon
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This function is called by the monitorctrl module to check
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if RMC can help monitoring and returning the node status.
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Arguments:
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none
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Returns:
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1
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=cut
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#--------------------------------------------------------------------------------
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sub supportNodeStatusMon {
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#print "rmcmon::supportNodeStatusMon called\n";
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return 1;
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}
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#--------------------------------------------------------------------------------
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=head3 startNodeStatusMon
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This function is called by the monitorctrl module to tell
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RMC to start monitoring the node status and feed them back
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to xCAT. RMC will start setting up the condition/response
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to monitor the node status changes.
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Arguments:
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None.
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Returns:
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(return code, message)
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=cut
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#--------------------------------------------------------------------------------
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sub startNodeStatusMon {
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#print "rmcmon::startNodeStatusMon called\n";
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return (0, "started");
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}
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#--------------------------------------------------------------------------------
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=head3 stopNodeStatusMon
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This function is called by the monitorctrl module to tell
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RMC to stop feeding the node status info back to xCAT. It will
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stop the condition/response that is monitoring the node status.
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Arguments:
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none
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Returns:
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(return code, message)
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=cut
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#--------------------------------------------------------------------------------
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sub stopNodeStatusMon {
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#print "rmcmon::stopNodeStatusMon called\n";
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return (0, "stopped");
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}
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#--------------------------------------------------------------------------------
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=head3 addNodes
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This function adds the nodes into the RMC cluster.
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Arguments:
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nodes --nodes to be added. It is a pointer to an array. If the next argument is
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1, each element is a ref to an array of [nodes, nodetype, status]. For example:
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[['node1', 'active'], ['node2', 'booting']..].
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if the next argument is 0, each element is a node name to be added.
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boolean -- 1, or 0.
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Returns:
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(error code, error message)
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=cut
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#--------------------------------------------------------------------------------
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sub addNodes {
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my $noderef=shift;
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if ($noderef =~ /xCAT_monitoring::rmcmon/) {
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$noderef=shift;
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}
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my $bWithInfo=shift;
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#print "rmcmon::addNodes get called\n";
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my $ms_host_name=hostname();
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my $mon_nodes=$noderef;
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my @nodes_to_add=();
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foreach(@$mon_nodes) {
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my $node_pair=$_;
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my $node=$node_pair->[0];
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my $nodetype=$node_pair->[1];
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if ((!$nodetype) || ($nodetype =~ /$::NODETYPE_OSI/)) {
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#RMC deals only with osi type. empty type is treated as osi type
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#check if the node has already defined
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$result=`lsrsrc-api -s IBM.MngNode::"Name=\\\"\"$node\\\"\"" 2>&1`;
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if (($?) && ($result !~ /2612-023/)) { #2612-023 no resources found error
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xCAT::MsgUtils->message('S', "[mon]: $result\n");
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next;
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}
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#TODO: check all nodes at the same time or use the 'status' value in the node
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if ($ms_host_name ne $node) {
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`fping -a $node 2> /dev/null`;
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if ($?) {
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xCAT::MsgUtils->message('S', "[mon]: Cannot add the node $node into the RMC domian. The node is inactive.\n");
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next;
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}
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}
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push(@nodes_to_add, $node);
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}
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}
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if (@nodes_to_add>0) {
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return addNodes_noChecking(@nodes_to_add);
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}
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return (0, "ok");
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}
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#--------------------------------------------------------------------------------
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=head3 addNodes_noChecking
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This function gdds the nodes into the RMC cluster, it does not check the OSI type and
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if the node has already defined.
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Arguments:
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nodes --an array of nodes to be added.
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Returns:
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(error code, error message)
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=cut
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#--------------------------------------------------------------------------------
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sub addNodes_noChecking {
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@mon_nodes = @_;
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#print "rmcmon::addNodes_noChecking get called with @mon_nodes\n";
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my $ms_host_name=hostname();
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my $ms_node_id;
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my $mn_node_id;
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my $ms_name,$ms_aliases,$ms_addrtype,$ms_length,@ms_addrs;
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my $ms_ipaddresses;
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my $first_time=1;
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foreach(@mon_nodes) {
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my $node=$_;
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if ($first_time) {
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$first_time=0;
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#get ms node id, hostname, ip etc
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$ms_node_id=`/usr/sbin/rsct/bin/lsnodeid`;
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chomp($ms_node_id);
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($ms_name,$ms_aliases,$ms_addrtype,$ms_length,@ms_addrs) = gethostbyname($ms_host_name);
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chomp($ms_name);
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$ms_ipaddresses="{";
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foreach (@ms_addrs) {
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$ms_ipaddresses .= '"' .inet_ntoa($_) . '",';
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}
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chop($ms_ipaddresses);
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$ms_ipaddresses .= "}";
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}
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#get info for the node
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if($ms_host_name eq $node) {
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$mn_node_id=$ms_node_id;
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} else {
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$mn_node_id=`$::XCATROOT/bin/psh --nonodecheck $node /usr/sbin/rsct/bin/lsnodeid 2>&1`;
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if ($?) {
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xCAT::MsgUtils->message('S', "[mon]: Cannot get NodeID for $node. $mn_node_id\n");
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next;
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}
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if ($mn_node_id =~ s/.*([0-9 a-g]{16}).*/$1/s) {;}
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else { xCAT::MsgUtils->message('S', "[mon]: No node id found for $node:\n$mn_node_id\n"); next;}
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}
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my ($mn_name,$mn_aliases,$mn_addrtype,$mn_length,@mn_addrs) = gethostbyname($node);
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chomp($mn_name);
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my $mn_ipaddresses="{";
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foreach (@mn_addrs) {
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$mn_ipaddresses .= '"'.inet_ntoa($_) . '",';
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}
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chop($mn_ipaddresses);
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$mn_ipaddresses .= "}";
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# print " mn_name=$mn_name, mn_aliases=$mn_aliases, mn_ipaddr=$mn_ipaddresses, mn_node_id=$mn_node_id\n";
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# define resource in IBM.MngNode class on server
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$result=`mkrsrc-api IBM.MngNode::Name::"$node"::KeyToken::"$node"::IPAddresses::"$mn_ipaddresses"::NodeID::0x$mn_node_id 2>&1`;
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if ($?) {
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xCAT::MsgUtils->message('S', "[mon]: define resource in IBM.MngNode class result=$result\n");
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next;
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}
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#copy the configuration script and run it locally
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if($ms_host_name eq $node) {
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$result=`/usr/bin/mkrsrc-api IBM.MCP::MNName::"$node"::KeyToken::"$ms_host_name"::IPAddresses::"$ms_ipaddresses"::NodeID::0x$ms_node_id`;
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if ($?) {
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xCAT::MsgUtils->message('S', "[mon]: $result\n");
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next;
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}
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} else {
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$result=`scp $::XCATROOT/sbin/rmcmon/configrmcnode $node:/tmp 2>&1`;
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if ($?) {
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xCAT::MsgUtils->message('S', "[mon]: rmcmon:addNodes: cannot copy the file configrmcnode to node $node\n");
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next;
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}
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$result=`$::XCATROOT/bin/psh --nonodecheck $node /tmp/configrmcnode -a $node $ms_host_name $ms_ipaddresses 0x$ms_node_id 2>&1`;
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if ($?) {
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xCAT::MsgUtils->message('S', "[mon]: $result\n");
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}
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}
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}
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return (0, "ok");
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}
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#--------------------------------------------------------------------------------
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=head3 removeNodes
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This function removes the nodes from the RMC cluster.
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Arguments:
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nodes --nodes to be added. It is a pointer to an array. If the next argument is
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1, each element is a ref to an array of [nodes, nodetype, status]. For example:
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[['node1', 'active'], ['node2', 'booting']..].
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if the next argument is 0, each element is a node name to be added.
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boolean -- 1, or 0.
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Returns:
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(error code, error message)
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=cut
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#--------------------------------------------------------------------------------
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sub removeNodes {
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my $noderef=shift;
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if ($noderef =~ /xCAT_monitoring::rmcmon/) {
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$noderef=shift;
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}
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my $bWithInfo=shift;
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#print "rmcmon::removeNodes called\n";
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my $ms_host_name=hostname();
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my $mon_nodes=$noderef;
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my @nodes_to_remove=();
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foreach(@$mon_nodes) {
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my $node_pair=$_;
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my $node=$node_pair->[0];
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my $nodetype=$node_pair->[1];
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if ((!$nodetype) || ($nodetype =~ /$::NODETYPE_OSI/)) {
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#RMC deals only with osi type. empty type is treated as osi type
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push(@nodes_to_remove, $node);
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}
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}
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if (@nodes_to_remove>0) {
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return removeNodes_noChecking(@nodes_to_remove);
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}
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return (0, "ok");
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}
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#--------------------------------------------------------------------------------
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=head3 removeNodes_noChecking
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This function removes the nodes from the RMC cluster.
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Arguments:
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nodes --an array of node names to be removed.
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Returns:
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(error code, error message)
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=cut
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#--------------------------------------------------------------------------------
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sub removeNodes_noChecking {
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my @mon_nodes = @_;
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my $ms_host_name=hostname();
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#print "rmcmon::removeNodes_noChecking get called with @mon_nodes\n";
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foreach(@mon_nodes) {
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my $node=$_;
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#remove resource in IBM.MngNode class on server
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my $result=`rmrsrc-api -s IBM.MngNode::"Name=\\\"\"$node\\\"\"" 2>&1`;
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if ($?) {
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if ($result =~ m/2612-023/) { #resource not found
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next;
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}
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xCAT::MsgUtils->message('S', "[mon]: Remove resource in IBM.MngNode class result=$result\n");
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}
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# TODO: check all the nodes together or use the 'status' value
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#if the node is inactive, forget it
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if ($ms_host_name ne $node) {
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`fping -a $node 2> /dev/null`;
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if ($?) {
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next;
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}
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}
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if ($ms_host_name eq $node) {
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$result= `/usr/bin/rmrsrc-api -s IBM.MCP::"MNName=\\\"\"$node\\\"\"" 2>&1`;
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if ($?) {
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xCAT::MsgUtils->message('S', "[mon]: $result\n");
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}
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} else {
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#copy the configuration script and run it locally
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$result=`scp $::XCATROOT/sbin/rmcmon/configrmcnode $node:/tmp 2>&1 `;
|
|
if ($?) {
|
|
xCAT::MsgUtils->message('S', "[mon]: rmcmon:removeNodes: cannot copy the file configrmcnode to node $node\n");
|
|
next;
|
|
}
|
|
|
|
$result=`$::XCATROOT/bin/psh --nonodecheck $node /tmp/configrmcnode -d $node 2>&1`;
|
|
if ($?) {
|
|
xCAT::MsgUtils->message('S', "[mon]: $result\n");
|
|
}
|
|
}
|
|
}
|
|
|
|
return (0, "ok";
|
|
}
|
|
|
|
#--------------------------------------------------------------------------------
|
|
=head3 processSettingChanges
|
|
This function gets called when the setting for this monitoring plugin
|
|
has been changed in the monsetting table.
|
|
Arguments:
|
|
none.
|
|
Returns:
|
|
0 for successful.
|
|
non-0 for not successful.
|
|
=cut
|
|
#--------------------------------------------------------------------------------
|
|
sub processSettingChanges {
|
|
}
|
|
|
|
#--------------------------------------------------------------------------------
|
|
=head3 getDiscription
|
|
This function returns the detailed description of the plugin inluding the
|
|
valid values for its settings in the monsetting tabel.
|
|
Arguments:
|
|
none
|
|
Returns:
|
|
The description.
|
|
=cut
|
|
#--------------------------------------------------------------------------------
|
|
sub getDescription {
|
|
return
|
|
" Description:
|
|
rmcmon .....
|
|
Settings:
|
|
key: value.\n";
|
|
}
|