以下は私を夢中にさせています。
わかりやすくするために、関数全体を提出します。ここでの目的は、Linux ミラー サブデバイスに障害が発生するたびに、またはサブデバイスが削除されたときにエラーをログに記録することです。毎回メッセージを 1 つだけ送信する必要があります。サブデバイスがミラーから完全に削除されておらず、障害状態にある場合、mdadm コマンドの出力には常に、removed の行と faulty の行が表示されます。この場合、削除された部分ではなく、サブデバイスの障害部分のみをログに記録したいだけです。
デバイスがミラーから削除されると、障害エラーはなくなり、削除されるだけです。この場合、削除されたエラーをログに記録する必要があります。
そのために、変数を使用し$myfaultyて出力を解析しmdadm --detail $md_devます。問題は、最初に来るコードの部分が 2 番目に評価されることです。
以下のコードが最初に来ます：
elsif ($subdevice_status =~ /faulty/) {
_msg("ERROR: MD device $device status $device_status, sub-device status $subdevice_status " );
_mylog('err', "ERROR: faulty MD $device $device_status: sub-device $subdevice ($subdevice_role): status $subdevice_status " );
$myfaulty = 1;
そして、これは2番目に来ます：
elsif ($subdevice_status =~ /removed/ && $myfaulty != 1 ) {
_msg("ERROR: MD device $device status $device_status, sub-device status $subdevice_status " );
printf("The removed part: $myfaulty, $device, $raid_type \n");
_mylog('err', "ERROR: MD device $device status $device_status, sub-device $subdevice_status " );
$myfaulty 変数の評価は、最初に 2 番目のコード ブロックで行われ、次に最初のコード ブロックで行われます。
何か案は？
ありがとう、ジョージ
サブコード
# checks all MD volumes it finds on the system
sub check_md() {
my $MDADMCMD = "";
my $device = "";
my $subdevice = "";
my $device_status = "";
my $subdevice_status = "";
my $raid_type = "";
my $subdevice_role = "";
my $raid_count = 0;
my $lines = 0;
my $myfaulty = 0;
foreach(@mdadm_paths) {
if( -e $_ ) { $MDADMCMD = $_; _debug("using mdadm in $MDADMCMD"); last; }
}
if($MDADMCMD eq "") { _msg("MD not configured on this system (mdadm not found) - "); return; }
open MDSCAN, "-|", "$MDADMCMD --detail --scan --verbose 2>&1" || die "can't run: $!";
while(<MDSCAN>) {
$lines++;
if($_ =~ /^ARRAY/) {
$_ =~ /^ARRAY\s+(\S+)\s+level=(\S+)\s+/;
$device = $1;
$raid_type = $2;
$raid_count++;
_debug("found MD device $device, raid-level $raid_type");
open MDDETAIL, "-|", "$MDADMCMD --detail $device" || die "can't run: $!"; while(<MDDETAIL>) {
printf($_);
if($_ =~ /\s+State\s+:\s+(.+)$/) { # md device status
$device_status = $1;
chomp($device_status);
_debug("device status: $device_status");
if($device_status !~ /clean$/) {
change_status("CRITICAL");
$md_status = "CRITICAL";
}
if($_ =~ /^\s+(\d+|-)\s+(\d+|-)\s+(\d+|-)\s+(\d+|-)\s+(\w+)\s+(\w+)\s+(\S+)\s*$/) {
$subdevice_status = $5; $subdevice_role = $6; $subdevice = $7;
_debug("device:$device - subdevice:$subdevice - role:$subdevice_role - status:$subdevice_status");
if($subdevice_status !~ /active/) {
change_status("CRITICAL");
$md_status = "CRITICAL";
_msg("MD $device, sub-device $subdevice ($subdevice_role): status $subdevice_status - ");
if ($subdevice_role =~ /rebuilding/) {
_mylog('warning', "WARNING: MD $device $device_status: sub-device $subdevice ($subdevice_role): status $subdevice_status " );
}
elsif ($subdevice_status =~ /faulty/) {
_msg("ERROR: MD device $device status $device_status, sub-device status $subdevice_status " );
_mylog('err', "ERROR: faulty MD $device $device_status: sub-device $subdevice ($subdevice_role): status $subdevice_status " );
$myfaulty = 1;
printf("Faulty is here: $myfaulty, $subdevice_status, $raid_type \n");
}
elsif ($subdevice_status =~ /removed/ && $myfaulty != 1 ) {
_msg("ERROR: MD device $device status $device_status, sub-device status $subdevice_status " );
printf("The removed part: $myfaulty, $device, $raid_type \n");
_mylog('err', "ERROR: MD device $device status $device_status, sub-device $subdevice_status " );
}
else {
_msg("MD $device, sub-device $subdevice ($subdevice_role): status $subdevice_status - ");
_mylog('err', "ERROR: after faulty MD $device $device_status: sub-device $subdevice ($subdevice_role): status $subdevice_status " );
}
}
else { _verbosemsg("MD $device, sub-device $subdevice ($subdevice_role): status OK - "); }
# Need to also catch subdevices that have been removed and don't show up anymore.
}
if ($_ =~ /^\s+(\d+|-)\s+(\d+|-)\s+(\d+|-)\s+(\d+|-)\s+(\w+)\s*$/) {
$subdevice_status = $5;
_debug("device:$device - subdevice:$subdevice - role:$subdevice_role - status:$subdevice_status");
printf("The removed part: $myfaulty, $device, $raid_type \n");
if ($subdevice_status =~ m/removed/ && $myfaulty != 1 ) {
_msg("ERROR: MD device $device status $device_status, sub-device status $subdevice_status " );
printf("The removed part: $myfaulty, $device, $raid_type \n");
_mylog('err', "ERROR: MD device $device status $device_status, sub-device $subdevice_status " );
}
}
} #while(<MDDETAIL>)
close(MDDETAIL);
}
}
close(MDSCAN);
# no md devices found, but command output wasn't empty
if($raid_count == 0 && $lines > 0) { _msg("MD status is UNKNOWN (can't get configuration info) - "); }
elsif($raid_count == 0) { _msg("MD not configured on this system - "); }
elsif($md_status eq "OK" && not defined $verbOutput) { _msg("MD Status is OK - "); } }
mdadm --detail 出力
/dev/md0:
Version : 0.90
Creation Time : Mon Mar 4 12:53:19 2013
Raid Level : raid1
Array Size : 521984 (509.84 MiB 534.51 MB)
Used Dev Size : 521984 (509.84 MiB 534.51 MB)
Raid Devices : 2
Total Devices : 2
Preferred Minor : 0
Persistence : Superblock is persistent
Update Time : Thu Jul 4 16:27:46 2013
State : clean, degraded
Active Devices : 1
Working Devices : 1
Failed Devices : 1
Spare Devices : 0
UUID : 3a3bd078:31678889:9485a7cf:e1283d32
Events : 0.438
Number Major Minor RaidDevice State
0 0 0 0 removed
1 8 33 1 active sync /dev/sdc1
2 8 17 - faulty spare /dev/sdb1