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Add simple scripts to discover and check GlusterFS status

This commit is contained in:
Daniel Berteaud 2014-07-11 18:23:40 +02:00
parent 9cff9cf2e0
commit a42acdda65
3 changed files with 223 additions and 0 deletions
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8
zabbix_conf/gluster.conf Normal file
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# Discover GLusterFS volume or peers, based on the argument
UserParameter=gluster.discovery[*],/usr/bin/sudo /var/lib/zabbix/bin/disco_gluster_sudo --what=$1
# Check GlusterFS volume or peer status
UserParameter=gluster.volume.status[*],/usr/bin/sudo /var/lib/zabbix/bin/check_gluster_sudo --what=volume --volume=$1 --bricks=$2
UserParameter=gluster.peer.status[*],/usr/bin/sudo /var/lib/zabbix/bin/check_gluster_sudo --what=peer --peer=$1

109
zabbix_scripts/check_gluster_sudo Normal file
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#!/usr/bin/perl -w
use strict;
use File::Which;
use Getopt::Long;
my $what = 'volume';
my $volume = undef;
my $peer = undef;
my $bricks = undef;
my $gluster = which('gluster');
unless($gluster){
# Gluster is not installed, exit with an error
die "gluster command not found";
}
GetOptions(
"what=s" => \$what,
"volume=s" => \$volume,
"bricks=i" => \$bricks,
"peer=s" => \$peer
);
sub usage(){
print <<"EOF";
usage: $0 --what=[peer|volume]
If --what=volume you need to pass --volume=<volname>. The optional --bricks arg can be used to pass the number of expected bricks
If --what=peer you need to pass --peer=<host>
EOF
}
if (($what eq 'volume' && !$volume) ||
($what eq 'peer' && !$peer) ||
($what ne 'volume' && $what ne 'peer')){
usage();
}
if ($what eq 'volume'){
open (VOLUMEINFO, "$gluster vol status $volume |")
|| die "error: Could not execute gluster vol status $volume";
my $bricksfound = 0;
my $status = 1;
foreach my $line (<VOLUMEINFO>){
# Check that all bricks are online
if ($line =~ m/^Brick\ [\w\.]+:\/[\w\.\/]+\s+\d+\s+(Y|N)/){
$bricksfound++;
$status = 0 if ($1 ne 'Y');
}
# Check the Self-Heal daemons are up and running
elsif ($line =~ m/^Self-heal\ Daemon\ on\ [\w\.]+\s+N\/A\\s+(Y|N)/){
$status = 0 if ($1 ne 'Y');
}
}
# Check the number of bricks is the one we expect
if ($bricks && $bricks != $bricksfound){
$status = 0;
}
close VOLUMEINFO;
open (VOLUMEINFO, "$gluster vol heal $volume info heal-failed |")
|| die "error: Could not execute gluster vol heal $volume info heal-failed";
foreach my $line (<VOLUMEINFO>){
# Now, check we don't have any file which the Self-Heal daemon couldn't sync
if ($line =~ m/^Number\ of\ entries:\s+(\d+)$/){
$status = 0 if ($1 gt 0);
}
}
close VOLUMEINFO;
open (VOLUMEINFO, "$gluster vol heal $volume info split-brain |")
|| die "error: Could not execute gluster vol heal $volume info split-brain";
foreach my $line (<VOLUMEINFO>){
# Now, check we don't have any file in a split-brain situation
if ($line =~ m/^Number\ of\ entries:\s+(\d+)$/){
$status = 0 if ($1 gt 0);
}
}
close VOLUMEINFO;
open (VOLUMEINFO, "$gluster vol info $volume |")
|| die "error: Could not execute gluster vol info $volume";
foreach my $line (<VOLUMEINFO>){
# Check the volume is started
if ($line =~ m/^Status:\s+(\w+)$/){
$status = 0 unless ($1 eq 'Started');
}
}
close VOLUMEINFO;
print $status;
}
elsif ($what eq 'peer'){
open (PEERLIST, "$gluster pool list |")
|| die "error: Could not execute gluster pool list";
my $status = 0;
foreach my $line (<PEERLIST>){
if (($line =~ m/^$peer\s+/) ||
($line =~ m/^[0-9a-f]{8}-([0-9a-f]{4}-){3}[0-9a-f]{12}\s+$peer\s+/)){
my (undef,undef,$state) = split(/\s+/, $line);
$status = 1 if ($state eq 'Connected');
}
}
close PEERLIST;
print $status;
}

106
zabbix_scripts/disco_gluster_sudo Normal file
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#!/usr/bin/perl -w
use strict;
use File::Which;
use Getopt::Long;
use JSON;
my $json;
@{$json->{data}} = ();
my $gluster = which('gluster');
unless($gluster){
# Gluster is not installed, just return an empty JSON object
print to_json($json);
exit(0);
}
my $what = 'volumes';
GetOptions(
"what=s" => \$what,
);
sub usage (){
print <<"EOF";
Usage: $0 --what=[volumes|peers]
EOF
}
if ($what eq 'volumes'){
open (VOLUMES, "$gluster vol info all |")
|| die "error: Could not execute gluster vol info all";
foreach my $line (<VOLUMES>){
if ($line =~ m/^Volume\ Name:\ (\w+)$/){
my $vol = $1;
my ($type,$bricks,$uuid,$status,$transport) = ('unknown');
open (VOLUMEINFO, "$gluster vol info $vol |")
|| die "error: Could not execute gluster vol info $vol";
foreach my $info (<VOLUMEINFO>){
if ($info =~ m/^Type:\ (.*)$/){
$type = $1;
}
elsif ($info =~ m/^Volume\ ID:\ ([0-9a-f]{8}-([0-9a-f]{4}-){3}[0-9a-f]{12})$/){
$uuid = $1;
}
elsif ($info =~ m/^Status:\ (\w+)$/){
$status = $1;
}
elsif ($info =~ m/^Transport-type:\ (\w+)$/){
$transport = $1;
}
elsif ($info =~ m/^Number\ of\ Bricks:\ \d+\ x\ \d+\ =\ (\d+)$/){
$bricks = $1;
}
}
close VOLUMEINFO;
push @{$json->{data}}, {
"{#GLUSTER_VOL_NAME}" => $vol,
"{#GLUSTER_VOL_TYPE}" => $type,
"{#GLUSTER_VOL_UUID}" => $uuid,
"{#GLUSTER_VOL_STATUS}" => $status,
"{#GLUSTER_VOL_TRANSPORT}" => $transport,
"{#GLUSTER_VOL_BRICKS}" => $bricks
};
}
}
close VOLUMES;
}
elsif ($what eq 'peers'){
open (PEERS, "$gluster peer status |")
|| die "error: Could not execute gluster peer status";
my $peerno = 0;
my ($host,$uuid,$status) = ('unknown');
foreach my $line (<PEERS>){
if ($line =~ m/^Number of Peers:\ (\d+)$/){
$peerno = $1;
}
elsif ($line =~ m/^Hostname:\ ([\w\.]+)$/){
$host = $1;
}
elsif ($line =~ m/Uuid:\ ([0-9a-f]{8}-([0-9a-f]{4}-){3}[0-9a-f]{12})$/){
$uuid = $1;
}
elsif ($line =~ m/State:\ [\w\s]+\((\w+)\)$/){
$status = $1;
push @{$json->{data}}, {
"{#GLUSTER_PEER_HOST}" => $host,
"{#GLUSTER_PEER_UUID}" => $uuid,
"{#GLUSTER_PEER_STATUS}" => $status
};
}
}
close PEERS;
}
else{
usage();
exit(1);
}
print to_json($json);
exit(0);