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revert memory for rhel patch

This commit is contained in:
garnier-quentin 2020-06-16 14:21:40 +02:00
parent dd93875743
commit 6bb57e499c
1 changed files with 21 additions and 113 deletions
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134
snmp_standard/mode/memory.pm
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@ -56,7 +56,7 @@ sub set_counters {
$self->{maps_counters_type} = [
{ name => 'ram', type => 0, skipped_code => { -10 => 1 } },
{ name => 'swap', type => 0, message_separator => ' - ', skipped_code => { -10 => 1 } },
{ name => 'swap', type => 0, message_separator => ' - ', skipped_code => { -10 => 1 } }
];
$self->{maps_counters}->{ram} = [
@ -64,8 +64,7 @@ sub set_counters {
key_values => [ { name => 'used' }, { name => 'free' }, { name => 'prct_used' }, { name => 'prct_free' }, { name => 'total' } ],
closure_custom_output => $self->can('custom_usage_output'),
perfdatas => [
{ label => 'used', value => 'used', template => '%d', min => 0, max => 'total',
unit => 'B', cast_int => 1 }
{ label => 'used', template => '%d', min => 0, max => 'total', unit => 'B', cast_int => 1 }
]
}
},
@ -73,8 +72,7 @@ sub set_counters {
key_values => [ { name => 'free' }, { name => 'used' }, { name => 'prct_used' }, { name => 'prct_free' }, { name => 'total' } ],
closure_custom_output => $self->can('custom_usage_output'),
perfdatas => [
{ label => 'free', value => 'free', template => '%d', min => 0, max => 'total',
unit => 'B', cast_int => 1 }
{ label => 'free', template => '%d', min => 0, max => 'total', unit => 'B', cast_int => 1 }
]
}
},
@ -82,8 +80,7 @@ sub set_counters {
key_values => [ { name => 'prct_used' } ],
output_template => 'Ram Used : %.2f %%',
perfdatas => [
{ label => 'used_prct', value => 'prct_used', template => '%.2f', min => 0, max => 100,
unit => '%' }
{ label => 'used_prct', template => '%.2f', min => 0, max => 100, unit => '%' }
]
}
},
@ -92,8 +89,7 @@ sub set_counters {
output_template => 'Buffer: %s %s',
output_change_bytes => 1,
perfdatas => [
{ label => 'buffer', value => 'memBuffer', template => '%d',
min => 0, unit => 'B' }
{ label => 'buffer', template => '%d', min => 0, unit => 'B' }
]
}
},
@ -102,8 +98,7 @@ sub set_counters {
output_template => 'Cached: %s %s',
output_change_bytes => 1,
perfdatas => [
{ label => 'cached', value => 'memCached', template => '%d',
min => 0, unit => 'B' }
{ label => 'cached', template => '%d', min => 0, unit => 'B' }
]
}
},
@ -112,19 +107,17 @@ sub set_counters {
output_template => 'Shared: %s %s',
output_change_bytes => 1,
perfdatas => [
{ label => 'shared', value => 'memShared', template => '%d',
min => 0, unit => 'B' }
{ label => 'shared', template => '%d', min => 0, unit => 'B' }
]
}
},
}
];
$self->{maps_counters}->{swap} = [
{ label => 'swap', nlabel => 'swap.usage.bytes', set => {
key_values => [ { name => 'used' }, { name => 'free' }, { name => 'prct_used' }, { name => 'prct_free' }, { name => 'total' } ],
closure_custom_output => $self->can('custom_swap_output'),
perfdatas => [
{ label => 'swap', value => 'used', template => '%d', min => 0, max => 'total',
unit => 'B', cast_int => 1 }
{ label => 'swap', template => '%d', min => 0, max => 'total', unit => 'B', cast_int => 1 }
]
}
},
@ -132,7 +125,7 @@ sub set_counters {
key_values => [ { name => 'free' }, { name => 'used' }, { name => 'prct_used' }, { name => 'prct_free' }, { name => 'total' } ],
closure_custom_output => $self->can('custom_swap_output'),
perfdatas => [
{ label => 'swap_free', value => 'free', template => '%d', min => 0, max => 'total',
{ label => 'swap_free', template => '%d', min => 0, max => 'total',
unit => 'B', cast_int => 1 }
]
}
@ -141,8 +134,7 @@ sub set_counters {
key_values => [ { name => 'prct_used' } ],
output_template => 'Swap Used : %.2f %%',
perfdatas => [
{ label => 'swap_prct', value => 'prct_used', template => '%.2f', min => 0, max => 100,
unit => '%' }
{ label => 'swap_prct', template => '%.2f', min => 0, max => 100, unit => '%' }
]
}
}
@ -158,8 +150,8 @@ sub new {
'units:s' => { name => 'units', default => '%' },
'free' => { name => 'free' },
'swap' => { name => 'check_swap' },
'redhat' => { name => 'redhat' },
'autodetect-redhat' => { name => 'autodetect_redhat' }
'redhat' => { name => 'redhat' }, # for legacy (do nothing)
'autodetect-redhat' => { name => 'autodetect_redhat' } # for legacy (do nothing)
});
return $self;
@ -185,7 +177,6 @@ sub check_options {
}
my $mapping = {
sysDescr => { oid => '.1.3.6.1.2.1.1.1' },
memTotalSwap => { oid => '.1.3.6.1.4.1.2021.4.3' },
memAvailSwap => { oid => '.1.3.6.1.4.1.2021.4.4' },
memTotalReal => { oid => '.1.3.6.1.4.1.2021.4.5' },
@ -193,27 +184,9 @@ my $mapping = {
memTotalFree => { oid => '.1.3.6.1.4.1.2021.4.11' },
memShared => { oid => '.1.3.6.1.4.1.2021.4.13' },
memBuffer => { oid => '.1.3.6.1.4.1.2021.4.14' },
memCached => { oid => '.1.3.6.1.4.1.2021.4.15' },
memCached => { oid => '.1.3.6.1.4.1.2021.4.15' }
};
sub autodetect_rhel7 {
my ($self, %options) = @_;
# https://access.redhat.com/articles/3078#RHEL7
# rhel 7.6: "Linux dev 3.10.0-957.10.1.el7.x86_64 #1 SMP Mon Mar 18 15:06:45 UTC 2019 x86_64"
# rhel 7.7: "Linux dev 3.10.0-1062.1.1.el7.x86_64 #1 SMP Fri Sep 13 22:55:44 UTC 2019 x86_64"
# oracle 7.6: "Linux dev 4.14.35-1844.3.2.el7uek.x86_64 #2 SMP Mon Feb 25 17:43:37 PST 2019 x86_64"
# oracle 7.7: "Linux dev 4.14.35-1902.6.6.el7uek.x86_64 #2 SMP Tue Oct 8 07:32:21 PDT 2019 x86_64 x86_64 x86_64"
return if (!defined($options{result}->{sysDescr}));
if ($options{result}->{sysDescr} =~ /3\.10\.0-(\d+)\..*?el7\./) {
my $build = $1;
$self->{option_results}->{redhat} = 1 if ($build >= 1062);
} elsif ($options{result}->{sysDescr} =~ /4\.14\.35-(\d+)\..*?\.el7uek\./) {
my $build = $1;
$self->{option_results}->{redhat} = 1 if ($build >= 1902);
}
}
sub memory_calc {
my ($self, %options) = @_;
@ -224,63 +197,12 @@ sub memory_calc {
my ($used, $free, $prct_used, $prct_free) = (0, 0, 0, 0);
if ($total != 0) {
#### procps-ng-3.3.10-23
## Mem:
## total = MemTotal in /proc/meminfo
## used = total - free - buffer - cache
## free = MemFree in /proc/meminfo
## shared = Shmem in /proc/meminfo
## buffers = Buffers in /proc/meminfo
## cache = Cached and Slab in /proc/meminfo
## available = MemAvailable in /proc/meminfo
## Swap:
## total = SwapTotal in /proc/meminfo
## used = total - free
## free = SwapFree in /proc/meminfo
#### net-snmp-5.7.2-38
## memTotalSwap = SwapTotal in /proc/meminfo
## memAvailSwap = SwapFree in /proc/meminfo
## memTotalReal = MemTotal in /proc/meminfo
## memAvailReal = MemFree in /proc/meminfo
## memTotalFree = memAvailSwap + memAvailReal
## memShared = MemShared in /proc/meminfo
## memBuffer = Buffers in /proc/meminfo
## memCached = Cached in /proc/meminfo (missing Slab)
#### procps-ng-3.3.10-26
## Mem:
## total = MemTotal in /proc/meminfo
## used = total - free - buffer - cache
## free = MemFree in /proc/meminfo
## shared = Shmem in /proc/meminfo
## buffers = Buffers in /proc/meminfo
## cache = Cached and SReclaimable in /proc/meminfo (https://gitlab.com/procps-ng/procps/commit/05d751c4f076a2f0118b914c5e51cfbb4762ad8e)
## available = MemAvailable in /proc/meminfo
## Swap:
## total = SwapTotal in /proc/meminfo
## used = total - free
## free = SwapFree in /proc/meminfo
#### net-snmp-5.7.2-43
## memTotalSwap = SwapTotal in /proc/meminfo
## memAvailSwap = SwapFree in /proc/meminfo
## memTotalReal = MemTotal in /proc/meminfo
## memAvailReal = MemFree + Buffers + Cached + SReclaimable in /proc/meminfo (https://bugzilla.redhat.com/attachment.cgi?id=1554747&action=diff)
## memTotalFree = memAvailSwap + memAvailReal
## memShared = MemShared in /proc/meminfo
## memBuffer = Buffers in /proc/meminfo
## memCached = Cached + SReclaimable in /proc/meminfo (https://bugzilla.redhat.com/attachment.cgi?id=1554747&action=diff)
$used = (defined($self->{option_results}->{redhat})) ? $total - $available : $total - $available - $buffer - $cached;
$free = (defined($self->{option_results}->{redhat})) ? $available : $total - $used;
# if the value is negative. maybe the autodetect failed.
if ($used < 0 && defined($self->{option_results}->{autodetect_redhat})) {
$used = $total - $available;
$free = $available;
}
$used = $total - $available - $buffer - $cached;
$free = $total - $used;
$prct_used = $used * 100 / $total;
$prct_free = 100 - $prct_used;
}
$self->{ram} = {
total => $total,
used => $used,
@ -289,7 +211,7 @@ sub memory_calc {
prct_free => $prct_free,
memShared => ($options{result}->{memShared}) ? $options{result}->{memShared} * 1024 : 0,
memBuffer => $buffer,
memCached => $cached,
memCached => $cached
};
}
@ -311,7 +233,7 @@ sub swap_calc {
used => $used,
free => $free,
prct_used => $prct_used,
prct_free => $prct_free,
prct_free => $prct_free
};
}
@ -319,11 +241,11 @@ sub manage_selection {
my ($self, %options) = @_;
my $results = $options{snmp}->get_leef(
oids => [ map($_->{oid} . '.0', values(%$mapping)) ]
oids => [ map($_->{oid} . '.0', values(%$mapping)) ],
nothing_quit => 1
);
my $result = $options{snmp}->map_instance(mapping => $mapping, results => $results, instance => 0);
$self->autodetect_rhel7(result => $result) if (defined($self->{option_results}->{autodetect_redhat}));
$self->memory_calc(result => $result);
if (defined($self->{option_results}->{check_swap})) {
$self->swap_calc(result => $result);
@ -359,20 +281,6 @@ Can be: 'usage' (B), 'usage-free' (B), 'usage-prct' (%),
'swap' (B), 'swap-free' (B), 'swap-prct' (%),
'buffer' (B), 'cached' (B), 'shared' (B).
=item B<--autodetect-redhat>
Try to detect autodetect rhel 7.7 version and higher.
=item B<--redhat>
If using RedHat distribution with net-snmp >= 5.7.2-43.
This version: used = memTotalReal - memAvailReal // free = memAvailReal
Others versions: used = memTotalReal - memAvailReal - memBuffer - memCached // free = total - used
(grep for '##' in this mode for more informations)
=back
=cut