139c9fc5af
git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@1280 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd
625 lines
20 KiB
Perl
625 lines
20 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::snmpmon;
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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 IO::File;
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use xCAT::Utils;
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use xCAT::MsgUtils;
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#print "xCAT_monitoring::snmpmon loaded\n";
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1;
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#-------------------------------------------------------------------------------
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=head1 xCAT_monitoring:snmpmon
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=head2 Package Description
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xCAT monitoring plugin package to handle SNMP 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.
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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 "snmpmon::start called\n";
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$noderef=shift;
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if ($noderef =~ /xCAT_monitoring::snmpmon/) {
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$noderef=shift;
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}
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# do not turn it on on the service node
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#if (xCAT::Utils->isServiceNode()) { return (0, "");}
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# unless we are running on linux, exit.
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#unless($^O eq "linux"){
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# exit;
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# }
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# check supported snmp package
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my $cmd;
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my @snmpPkg = `/bin/rpm -qa | grep snmp`;
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my $pkginstalled = grep(/net-snmp/, @snmpPkg);
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if ($pkginstalled) {
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my ($ret, $err)=configSNMP();
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if ($ret != 0) { return ($ret, $err);}
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} else {
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return (1, "net-snmp is not installed")
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}
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#enable bmcs if any
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configBMC(1);
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#enable MMAs if any
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configMPA(1);
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#configure mail to enabling receiving mails from trap handler
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configMail();
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return (0, "started")
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}
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#--------------------------------------------------------------------------------
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=head3 configBMC
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This function configures BMC to setup the snmp destination, enable/disable
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PEF policy table entry number 1.
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Arguments:
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actioon -- 1 enable PEF policy table. 0 disable PEF policy table.
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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 configBMC {
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my $action=shift;
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my $ret_text="";
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my $ret_val=0;
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#the identification of this node
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my @hostinfo=xCAT::Utils->determinehostname();
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%iphash=();
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foreach(@hostinfo) {$iphash{$_}=1;}
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my $isSV=xCAT::Utils->isServiceNode();
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my %masterhash=();
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my @node_a=();
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my $nrtab = xCAT::Table->new('noderes');
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my $table=xCAT::Table->new("ipmi");
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if ($table) {
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my @tmp1=$table->getAllNodeAttribs(['node','bmc']);
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if (defined(@tmp1) && (@tmp1 > 0)) {
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foreach(@tmp1) {
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my $node=$_->{node};
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my $bmc=$_->{bmc};
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my $monserver;
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my $tent = $nrtab->getNodeAttribs($node,['monserver', 'servicenode']);
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if ($tent) {
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if ($tent->{monserver}) { $monserver=$tent->{monserver}; }
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elsif ($tent->{servicenode}) { $monserver=$tent->{servicenode}; }
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}
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if ($monserver) {
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if (!$iphash{$monserver}) { next;} #skip if has sn but not localhost
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} else {
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if ($isSV) { next; } #skip if does not have sn but localhost is a sn
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}
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push(@node_a, $node);
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# find the master node and add the node in the hash
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$master=xCAT::Utils->GetMasterNodeName($node); #should we use $bmc?
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if(exists($masterhash{$master})) {
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my $ref=$masterhash{$master};
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push(@$ref, $node);
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} else { $masterhash{$master}=[$node]; }
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} #foreach
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}
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$table->close();
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}
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$nrtab->close();
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if (@node_a==0){ return ($ret_val, $ret_text);} #nothing to handle
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#now doing the real thing: enable PEF alert policy table
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my $noderange=join(',',@node_a );
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my $actionstring="en";
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if ($action==0) {$actionstring="dis";}
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my $result = `XCATBYPASS=Y rspconfig $noderange alert=$actionstring 2>&1`;
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if ($?) {
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xCAT::MsgUtils->message('S', "[mon]: Changeing SNMP PEF policy for IPMI nodes $noderange:\n $result\n");
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$ret_tex .= "Changeing SNMP PEF policy for IPMI nodes $noderange:\n $result\n";
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}
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#setup the snmp destination
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if ($action==1) {
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foreach (keys(%masterhash)) {
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my $ref2=$masterhash{$_};
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if (@$ref2==0) { next;}
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my $nr2=join(',', @$ref2);
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my $result2 = `XCATBYPASS=Y rspconfig $nr2 snmpdest=$_ 2>&1`;
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if ($?) {
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xCAT::MsgUtils->message('S', "[mon]: Changing SNMP destination for IPMI nodes $nr2:\n $result2\n");
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$ret_tex .= "Changing SNMP destination for IPMI nodes $nr2:\n $result2\n";
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}
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}
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}
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return ($ret_val, $ret_text);
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}
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#--------------------------------------------------------------------------------
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=head3 configMPA
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This function configures Blade Center Management Module to setup the snmp destination,
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enable/disable remote alert notification.
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Arguments:
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actioon -- 1 enable remote alert notification. 0 disable remote alert notification.
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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 configMPA {
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my $action=shift;
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my $ret_val=0;
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my $ret_text="";
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#the identification of this node
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my @hostinfo=xCAT::Utils->determinehostname();
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%iphash=();
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foreach(@hostinfo) {$iphash{$_}=1;}
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my $isSV=xCAT::Utils->isServiceNode();
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my %mpa_hash=();
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my %masterhash=();
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my @node_a=();
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my $nrtab = xCAT::Table->new('noderes');
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my $table=xCAT::Table->new("mp");
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if ($table) {
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my @tmp1=$table->getAllNodeAttribs(['mpa']);
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if (defined(@tmp1) && (@tmp1 > 0)) {
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foreach(@tmp1) {
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my $mpa=$_->{mpa};
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if ($mpa_hash{$mpa}) { next;} #already handled
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$mpa_hash{$mpa}=1;
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my $monserver;
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my $tent = $nrtab->getNodeAttribs($mpa,['monserver', 'servicenode']);
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if ($tent) {
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if ($tent->{monserver}) { $monserver=$tent->{monserver}; }
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elsif ($tent->{servicenode}) { $monserver=$tent->{servicenode}; }
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}
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if ($monserver) {
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if (!$iphash{$monserver}) { next;} #skip if has sn but not localhost
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} else {
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if ($isSV) { next; } #skip if does not have sn but localhost is a sn
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}
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push(@node_a, $mpa);
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# find the master node and add the node in the hash
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$master=xCAT::Utils->GetMasterNodeName($mpa); #should we use $bmc?
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if(exists($masterhash{$master})) {
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my $ref=$masterhash{$master};
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push(@$ref, $mpa);
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} else { $masterhash{$master}=[$mpa]; }
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} #foreach
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}
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$table->close();
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}
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$nrtab->close();
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if (@node_a==0){ return ($ret_val, $ret_text);} #nothing to handle
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#now doing the real thing: enable PEF alert policy table
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my $noderange=join(',',@node_a );
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#print "noderange=@noderange\n";
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my $actionstring="en";
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if ($action==0) {$actionstring="dis";}
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my $result = `XCATBYPASS=Y rspconfig $noderange alert=$actionstring 2>&1`;
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if ($?) {
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xCAT::MsgUtils->message('S', "[mon]: Changeing SNMP remote alert profile for Blade Center MM $noderange:\n $result\n");
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$ret_text .= "Changeing SNMP remote alert profile for Blade Center MM $noderange:\n $result\n";
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}
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#setup the snmp destination
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if ($action==1) {
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foreach (keys(%masterhash)) {
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my $ref2=$masterhash{$_};
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if (@$ref2==0) { next;}
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my $nr2=join(',', @$ref2);
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my $result2 = `XCATBYPASS=Y rspconfig $nr2 snmpdest=$_ 2>&1`;
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if ($?) {
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xCAT::MsgUtils->message('S', "[mon]: Changing SNMP destination for Blade Center MM $nr2:\n $result2\n");
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$ret_text .= "Changing SNMP destination for Blade Center MM $nr2:\n $result2\n";
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}
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}
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}
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return ($ret_val, $ret_text);
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}
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#--------------------------------------------------------------------------------
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=head3 configSNMP
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This function puts xcat_traphanlder into the snmptrapd.conf file and
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restarts the snmptrapd with the new configuration.
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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 configSNMP {
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my $isSN=xCAT::Utils->isServiceNode();
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my $master=xCAT::Utils->get_site_Master();
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my $cmd;
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# now move /usr/share/snmp/snmptrapd.conf to /usr/share/snmp/snmptrapd.conf.orig
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# if it exists.
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if (-f "/usr/share/snmp/snmptrapd.conf"){
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# if the file exists and has references to xcat_traphandler in mn or 'forward' in sn
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# then there is nothing that needs to be done.
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if ($isSN) {
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`/bin/grep "forward default $master" /usr/share/snmp/snmptrapd.conf > /dev/null`;
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} else {
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`/bin/grep xcat_traphandler /usr/share/snmp/snmptrapd.conf > /dev/null`;
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}
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# if the return code is 1, then there is no xcat_traphandler, or 'forward'
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# references and we need to put them in.
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if($? >> 8){
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# back up the original file.
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`/bin/cp -f /usr/share/snmp/snmptrapd.conf /usr/share/snmp/snmptrapd.conf.orig`;
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# if the file exists and does not have "authCommunity execute,net public" then add it.
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open(FILE1, "</usr/share/snmp/snmptrapd.conf");
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open(FILE, ">/usr/share/snmp/snmptrapd.conf.tmp");
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my $found=0;
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my $forward_handled=0;
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while (readline(FILE1)) {
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if (/\s*authCommunity.*public/) {
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$found=1;
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if (!/\s*authCommunity\s*.*execute.*public/) {
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s/authCommunity\s*(.*)\s* public/authCommunity $1,execute public/; #modify it to have 'execute' if found
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}
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if (!/\s*authCommunity\s*.*net.*public/) {
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s/authCommunity\s*(.*)\s* public/authCommunity $1,net public/; #modify it to have 'net' if found
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}
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} elsif (/\s*forward\s*default/) {
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if (($isSN) && (!/$master/)) {
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s/\s*forward/\#forward/; #comment out the old one
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if (!$forward_handled) {
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print FILE "forward default $master\n";
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$forward_handle=1;
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}
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}
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}
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print FILE $_;
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}
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if (!$found) { #add new one if not found
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print FILE "authCommunity log,execute,net public\n";
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}
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# now add the new traphandle commands:
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if (!$isSN) {
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print FILE "traphandle default $::XCATROOT/sbin/xcat_traphandler\n";
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}
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close(FILE1);
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close(FILE);
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`mv -f /usr/share/snmp/snmptrapd.conf.tmp /usr/share/snmp/snmptrapd.conf`;
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}
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}
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else { # The snmptrapd.conf file does not exists
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# create the file:
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open($handle, ">/usr/share/snmp/snmptrapd.conf");
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print $handle "authCommunity log,execute,net public\n";
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if ($isSN) {
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print $handle "forward default $master\n"; #forward the trap from sn to mn
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} else {
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print $handle "traphandle default $::XCATROOT/sbin/xcat_traphandler\n";
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}
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close($handle);
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}
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# TODO: put the mib files to /usr/share/snmp/mibs
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# get the PID of the currently running snmptrapd if it is running.
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# then stop it and restart it again so that it reads our new
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# snmptrapd.conf configuration file. Then the process
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chomp(my $pid= `/bin/ps -ef | /bin/grep snmptrapd | /bin/grep -v grep | /bin/awk '{print \$2}'`);
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if($pid){
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`/bin/kill -9 $pid`;
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}
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# start it up again!
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system("/usr/sbin/snmptrapd -m ALL");
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# get the PID of the currently running snmpd if it is running.
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# if it's running then we just leave. Otherwise, if we don't get A PID, then we
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# assume that it isn't running, and start it up again!
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chomp(my $pid= `/bin/ps -ef | /bin/grep snmpd | /bin/grep -v grep | /bin/awk '{print \$2}'`);
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unless($pid){
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# start it up again!
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system("/usr/sbin/snmpd");
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}
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return (0, "started");
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}
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#--------------------------------------------------------------------------------
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=head3 configMail
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This function adds a "alerts" mail aliase so that the mail notification
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from the trap handler can be received. It the alerts already exists, this
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function does nothing.
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TODO: configure mail servers on MS to forward mails to MS
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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 configMail {
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#check if "alerts" is in the /etc/aliases file
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if (-f "/etc/aliases"){
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# if the file exists, check if alerts is in
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`/bin/grep -e ^alerts /etc/aliases > /dev/null`;
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if ($? ==0) { return (0, "") };
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}
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#make a alerts aliase, forwarding the mail to the root of local host.
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`echo "alerts: root" >> /etc/aliases`;
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#make it effective
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`newaliases`;
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return (0, "");
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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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#print "snmpmon::stop called\n";
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# do not turn it on on the service node
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#if (xCAT::Utils->isServiceNode()) { return (0, "");}
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#disable MMAs if any
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configMPA(0);
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#disable BMC so that it stop senging alerts (PETs) to this node
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configBMC(0);
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if (-f "/usr/share/snmp/snmptrapd.conf.orig"){
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# copy back the old one
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`mv -f /usr/share/snmp/snmptrapd.conf.orig /usr/share/snmp/snmptrapd.conf`;
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} else {
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if (-f "/usr/share/snmp/snmptrapd.conf"){
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# if the file exists, delete all entries that have xcat_traphandler
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my $cmd = "grep -v xcat_traphandler /usr/share/snmp/snmptrapd.conf ";
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$cmd .= "> /usr/share/snmp/snmptrapd.conf.unconfig ";
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`$cmd`;
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# move it back to the snmptrapd.conf file.
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`mv -f /usr/share/snmp/snmptrapd.conf.unconfig /usr/share/snmp/snmptrapd.conf`;
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}
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}
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# now check to see if the daemon is running. If it is then we need to resart or stop?
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# it with the new snmptrapd.conf file that will not forward events to RMC.
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chomp(my $pid= `/bin/ps -ef | /bin/grep snmptrapd | /bin/grep -v grep | /bin/awk '{print \$2}'`);
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if($pid){
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`/bin/kill -9 $pid`;
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# start it up again!
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#system("/usr/sbin/snmptrapd");
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}
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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 SNMP can help monitoring and returning the node status.
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SNMP does not support this function.
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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 0;
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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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SNMP to start monitoring the node status and feed them back
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to xCAT. SNMP does not have this support.
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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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return (1, "This function is not supported.");
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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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SNMP to stop feeding the node status info back to xCAT.
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SNMP does not support this function.
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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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return (1, "This function is not supported.");
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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 SNMP domain.
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Arguments:
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|
nodes --nodes to be added. It is a pointer to an array with each element
|
|
being a ref to an array of [nodes, nodetype, status]. For example:
|
|
[['node1', 'osi', 'active'], ['node2', 'switch', 'booting']..]
|
|
Returns:
|
|
(error code, error message)
|
|
=cut
|
|
#--------------------------------------------------------------------------------
|
|
sub addNodes {
|
|
print "snmpmon::addNodes\n";
|
|
$noderef=shift;
|
|
if ($noderef =~ /xCAT_monitoring::snmpmon/) {
|
|
$noderef=shift;
|
|
}
|
|
|
|
foreach(@$noderef) {
|
|
my $node_info=$_;
|
|
print " node=$node_info->[0], nodetype=$node_info->[1], status=$node_info->[2]\n";
|
|
}
|
|
|
|
return (0, "ok");
|
|
}
|
|
|
|
#--------------------------------------------------------------------------------
|
|
=head3 removeNodes
|
|
This function removes the nodes from the SNMP domain.
|
|
Arguments:
|
|
nodes --nodes to be removed. It is a pointer to an array with each element
|
|
being a ref to an array of [nodes, nodetype, status]. For example:
|
|
[['node1', 'osi', 'active'], ['node2', 'switch', 'booting']..]
|
|
Returns:
|
|
(error code, error message)
|
|
=cut
|
|
#--------------------------------------------------------------------------------
|
|
sub removeNodes {
|
|
print "snmpmon::removeNodes\n";
|
|
$noderef=shift;
|
|
if ($noderef =~ /xCAT_monitoring::snmpmon/) {
|
|
$noderef=shift;
|
|
}
|
|
|
|
foreach(@$noderef) {
|
|
my $node_info=$_;
|
|
print " node=$node_info->[0], nodetype=$node_info->[1], status=$node_info->[2]\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 {
|
|
return 0;
|
|
}
|
|
|
|
#--------------------------------------------------------------------------------
|
|
=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:
|
|
snmpmon sets up the snmptrapd on the management server to receive SNMP
|
|
traps for different nodes. It also sets the trap destination for Blade
|
|
Center Management Module, RSA II, IPMIs that are managed by the xCAT cluster.
|
|
xCAT has categorized some events into different event priorities (critical,
|
|
warning and informational) based on the MIBs we know such as MM, RSA II and
|
|
IPMI. All the unknown events are categorized as 'warning'. By default,
|
|
the xCAT trap handler will log all events into the syslog and only
|
|
email the critical and the warning events to the mail alias called 'alerts'.
|
|
You can use the settings to override the default behavior.
|
|
Use command 'monstart snmpmon' to star monitoring and 'monstop snmpmon'
|
|
to stop it.
|
|
Settings:
|
|
ignore: specifies the events that will be ignored. It's a comma separated
|
|
pairs of oid=value. For example,
|
|
BLADESPPALT-MIB::spTrapAppType=4,BLADESPPALT-MIB::spTrapAppType=4.
|
|
email: specifies the events that will get email notification.
|
|
log: specifies the events that will get logged.
|
|
runcmd: specifies the events that will be passed to the user defined scripts.
|
|
cmds: specifies the command names that will be invoked for the events
|
|
specified in the runcmd row.
|
|
|
|
Special keywords for specifying events:
|
|
All -- all events.
|
|
None -- none of the events.
|
|
Critical -- all critical events.
|
|
Warning -- all warning events.
|
|
Informational -- all informational events.
|
|
|
|
For example, you can have the following setting:
|
|
email CRITICAL,BLADESPPALT-MIB::pTrapPriority=4
|
|
This means send email for all the critical events and the BladeCenter
|
|
system events.\n"
|
|
}
|
|
|