9444237a12
git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@1791 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd
322 lines
9.9 KiB
Perl
322 lines
9.9 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::xcatmon;
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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::Utils;
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use xCAT::GlobalDef;
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use xCAT_monitoring::monitorctrl;
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1;
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#-------------------------------------------------------------------------------
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=head1 xCAT_monitoring:xcatmon
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=head2 Package Description
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This is a xCAT monitoring plugin. The only thing that this plug-in does is
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the node monitoring. To activate it simply do the following command:
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chtab pname=xCAT monitoring.nodestatmon=Y
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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.
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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 "xcatmon.start\n";
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return (0, "started");
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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.
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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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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 this product 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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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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the product to start monitoring the node status and feed them back
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to xCAT.
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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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my $temp=shift;
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if ($temp =~ /xCAT_monitoring::xcatmon/) {
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$temp=shift;
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}
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#print "xcatmon.startNodeStatusMon\n";
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#run the command first to update the status,
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my $cmd="$::XCATROOT/sbin/xcatnodemon";
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#$output=`$cmd 2>&1`;
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#if ($?) {
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# print "xcatmon: $output\n";
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#}
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#figure out the ping-intercal setting
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my $value=3; #default
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my %settings=xCAT_monitoring::monitorctrl->getPluginSettings("xcatmon");
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#print "settings for xcatmon:\n";
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#foreach (keys(%settings)) {
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# print "key=$_, value=$settings{$_}\n";
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#}
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my $reading=$settings{'ping-interval'};
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if ($reading>0) { $value=$reading;}
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#create the cron job, it will run the command every 3 minutes.
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my $newentry;
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if (xCAT::Utils->isAIX()) {
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#AIX does not support */value format, have to list them all.
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my $minutes;
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if ($value==1) { $minutes='*';}
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elsif ($value<=30) {
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my @temp_a=(0..59);
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foreach (@temp_a) {
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if (($_ % $value) == 0) { $minutes .= "$_,";}
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}
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chop($minutes);
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} else {
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$minutes="0";
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}
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$newentry="$minutes * * * * XCATROOT=$::XCATROOT PATH=$ENV{'PATH'} XCATCFG='$ENV{'XCATCFG'}' $cmd";
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} else {
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$newentry="*/$value * * * * XCATROOT=$::XCATROOT PATH=$ENV{'PATH'} XCATCFG='$ENV{'XCATCFG'}' $cmd";
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}
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my ($code, $msg)=xCAT::Utils::add_cron_job($newentry);
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if ($code==0) { return (0, "started"); }
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else { return ($code, $msg); }
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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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the product to stop feeding the node status info back to xCAT.
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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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#TODO: turn off the node status monitoring.
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my $job="$::XCATROOT/sbin/xcatnodemon";
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my ($code, $msg)=xCAT::Utils::remove_cron_job($job);
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if ($code==0) { return (0, "stopped"); }
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else { return ($code, $msg); }
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}
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#--------------------------------------------------------------------------------
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=head3 addNodes
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This function is called by the monitorctrl module when new nodes are added
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to the xCAT cluster. It should add the nodes into the product for monitoring.
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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, 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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#print "xcatmon:addNodes called\n";
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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 is called by the monitorctrl module when nodes are removed
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from the xCAT cluster. It should remove the nodes from the product for monitoring.
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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, 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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#print "xcatmon:removeNodes called\n";
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return (0, "ok");
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}
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#--------------------------------------------------------------------------------
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=head3 getMonNodesStatus
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This function goes to the xCAT nodelist table to retrieve the saved node status
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for all the node that are managed by local nodes.
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Arguments:
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none.
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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...], unknown=>[node8, node101...]}
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=cut
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#--------------------------------------------------------------------------------
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sub getMonNodesStatus {
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%status=();
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my @inactive_nodes=();
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my @active_nodes=();
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my @unknown_nodes=();
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my $hierachy=xCAT_monitoring::monitorctrl->getMonHierarchy();
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my @mon_servers=keys(%$hierachy);
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my $isSV=xCAT::Utils->isServiceNode();
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#on a service node or on ms, get the nodes that has local host as the server node
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my $monnodes;
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my @hostinfo=xCAT::Utils->determinehostname();
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my %iphash=();
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foreach(@hostinfo) {$iphash{$_}=1;}
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#if this is mn, include the ones that has no service nodes
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if (!$isSV) { $iphash{'noservicenode'}=1;}
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foreach(@mon_servers) {
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#service node come in pairs, the first one is the monserver adapter that facing the mn,
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# the second one is facing the cn. we use the first one here
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my @server_pair=split(',', $_);
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my $sv=$server_pair[0];
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if ($iphash{$sv}) {
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$monnodes=$hierachy->{$_};
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}
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foreach(@$monnodes) {
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my $node=$_->[0];
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my $status=$_->[2];
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if ($status eq $::STATUS_ACTIVE) { push(@active_nodes, $node);}
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elsif ($status eq $::STATUS_INACTIVE) { push(@inactive_nodes, $node);}
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else { push(@unknown_nodes, $node);}
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}
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}
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$status{$::STATUS_ACTIVE}=\@active_nodes;
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$status{$::STATUS_INACTIVE}=\@inactive_nodes;
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$status{unknown}=\@unknown_nodes;
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return %status;
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}
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#--------------------------------------------------------------------------------
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=head3 processNodeStatusChanges
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This function will update the status column of the
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nodelist table with the new node status.
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Arguments:
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status -- a hash pointer of the node status. A key is a status string. The value is
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an array pointer of nodes that have the same status.
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for example: {active=>["node1", "node1"], inactive=>["node5","node100"]}
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Returns:
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0 for successful.
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non-0 for not successful.
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=cut
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#--------------------------------------------------------------------------------
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sub processNodeStatusChanges {
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my $temp=shift;
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if ($temp =~ /xCAT_monitoring::xcatmon/) {
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$temp=shift;
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}
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return xCAT_monitoring::monitorctrl->processNodeStatusChanges($temp);
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}
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#--------------------------------------------------------------------------------
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=head3 processSettingChanges
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This function gets called when the setting for this monitoring plugin
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has been changed in the monsetting table.
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Arguments:
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none.
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Returns:
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0 for successful.
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non-0 for not successful.
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=cut
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#--------------------------------------------------------------------------------
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sub processSettingChanges {
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#restart the cron job
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xCAT_monitoring::xcatmon->stopNodeStatusMon();
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xCAT_monitoring::xcatmon->startNodeStatusMon();
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}
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#--------------------------------------------------------------------------------
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=head3 getDiscription
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This function returns the detailed description of the plugin inluding the
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valid values for its settings in the mon setting tabel.
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Arguments:
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none
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Returns:
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The description.
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=cut
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#--------------------------------------------------------------------------------
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sub getDescription {
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return
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" Description:
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xcatmon uses fping to report the node liveness status and update the
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nodelist.status column. Use command 'monstart xcatmon -n' to start
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monitoring.
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Settings:
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ping-interval: the number of minutes between each fping operation.
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The default value is 3.";
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}
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