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Support for auto-read-only (swap) mirrot, ugly hack to prevent false 99 percent rebuild critical warnings, added some comments

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Nagy Elemer Karoly 2011-08-17 21:24:28 +02:00 • committed by Steve Schnepp
parent afe66001fa
commit 0f972e1fec
1 changed files with 24 additions and 32 deletions
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56
plugins/other/raid
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@ -1,7 +1,7 @@
#!/usr/bin/perl -w #!/usr/bin/perl -w
# #
# (c) 2007 Nathan Rutman nathan@clusterfs.com # (c) 2007 Nathan Rutman nathan@clusterfs.com
# #
# Plugin to monitor RAID status # Plugin to monitor RAID status
# #
# Results are % of healthy drives in a raid device # Results are % of healthy drives in a raid device
@ -10,22 +10,17 @@
#%# family=contrib #%# family=contrib
#%# capabilities=autoconf #%# capabilities=autoconf
if ($ARGV[0] and $ARGV[0] eq "autoconf") if ($ARGV[0] and $ARGV[0] eq "autoconf") {
{ if (-r "/proc/mdstat" and `grep md /proc/mdstat`) {
if (-r "/proc/mdstat" and `grep md /proc/mdstat`)
{
print "yes\n"; print "yes\n";
exit 0; exit 0;
} } else {
else
{
print "no RAID devices\n"; print "no RAID devices\n";
exit 1; exit 1;
} }
} }
if ( $ARGV[0] and $ARGV[0] eq "config" ) if ( $ARGV[0] and $ARGV[0] eq "config" ) {
{
print "graph_title RAID status\n"; print "graph_title RAID status\n";
print "graph_category disk\n"; print "graph_category disk\n";
print "graph_info This graph monitors RAID disk health. Values are percentage of healthy drives in each raid group. Degraded devices are marked Critical.\n"; print "graph_info This graph monitors RAID disk health. Values are percentage of healthy drives in each raid group. Degraded devices are marked Critical.\n";
@ -41,35 +36,31 @@ if ( $ARGV[0] and $ARGV[0] eq "config" )
my $text = <MDSTAT>; my $text = <MDSTAT>;
close MDSTAT; close MDSTAT;
while ($text =~ /(md\d)\s+:\s+active\s+(\w+)\s+(.*)\n.*\[(\d+)\/(\d+)]\s+\[(\w+)]/ ) # Should look like "active raid1 sda1[0] sdc1[2] sdb1[1]"
{ # Interestingly, swap is presented as "active (auto-read-only)"
my($dev,$type,$members,$nmem,$nact,$status) = ($1,$2,$3,$4,$5,$6); while ($text =~ /(md\d)\s+:\s+active\s+(\(auto-read-only\)\s+|)(\w+)\s+(.*)\n.*\[(\d+)\/(\d+)]\s+\[(\w+)]/ ) {
#print "item: $dev $type ($members) status=$status \n"; my($dev,$dummy,$type,$members,$nmem,$nact,$status) = ($1,$2,$3,$4,$5,$6,$7);
if ( $ARGV[0] and $ARGV[0] eq "config" ) # print "$text\nitem: $dev $type ($members) status=$status \n";
{ if ( $ARGV[0] and $ARGV[0] eq "config" ) {
print "$dev.label $dev\n"; print "$dev.label $dev\n";
print "$dev.info $type $members\n"; print "$dev.info $type $members\n";
# 100: means less than 100 # 100: means less than 100
print "$dev.critical 100:\n"; # Because of an unfound bug, sometimes reported as 99.XX even when OS reports 100.
print "$dev.critical 98:\n";
print $dev, "_rebuild.label $dev rebuilt\n"; print $dev, "_rebuild.label $dev rebuilt\n";
print $dev, "_rebuild.info $type\n"; print $dev, "_rebuild.info $type\n";
print $dev, "_rebuild.critical 100:\n"; # Because of an unfound bug, sometimes reported as 99.XX even when OS reports 100.
} print $dev, "_rebuild.critical 98:\n";
else } else {
{
my $pct = 100 * $nact / $nmem; my $pct = 100 * $nact / $nmem;
my $rpct = 100; my $rpct = 100;
if ( $pct < 100 ) if ( $pct < 100 ) {
{ my $output = `/sbin/mdadm -D /dev/$dev | grep Rebuild`;
my $output = `/sbin/mdadm -D /dev/$dev | grep Rebuild`; if( $output =~ /([0-9]+)% complete/ ) {
if( $output =~ /([0-9]+)% complete/ ) $rpct = $1;
{ } else {
$rpct = $1; $rpct = 0;
} }
else
{
$rpct = 0;
}
} }
print "$dev.value $pct\n"; print "$dev.value $pct\n";
print $dev, "_rebuild.value $rpct\n"; print $dev, "_rebuild.value $rpct\n";
@ -79,3 +70,4 @@ if ( $ARGV[0] and $ARGV[0] eq "config" )
} }
exit 0; exit 0;