Klaus Tachtler

Memory Problem since squid 3.5.20 - SOLVED

To solve the problem with squid version 3.5.20 (CentOS-7) Use of uninitialized value in sprintf at /usr/local/share/perl5/Nagios/Plugin/Performance.pm line 68. Use this modified script: #!/usr/bin/perl ################################################################### # check_squid is developped with GPL Licence 2.0 # # GPL License: http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt # # Developped by : Cyril Feraudet # ################################################################### # This program is free software; you can redistribute it and/or # modify it under the terms of the GNU General Public License # as published by the Free Software Foundation; either version 2 # of the License, or (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # For information : [email protected] #################################################################### # Changed "Memory" data mining for squid version 3.5.20 # Developped by : Klaus Tachtler # http://dokuwiki.tachtler.net # http://www.tachtler.net #################################################################### my $VERSION = "1.0"; $|; use Nagios::Plugin; # todo : use strict; $np = Nagios::Plugin->new(usage => "Usage: %s [ -v|--verbose ] [ -H ] [ -d ] [ -p ] [ -t ] [ -c ] [ -w ]", version => $VERSION); $np->add_arg( spec => 'host|H=s', help => "-H, --host=n" . " Name of the proxy to check (default: localhost)", required => 0 ); $np->add_arg( # Connections Cache Resources Memory FileDescriptors spec => 'data|d=s', help => "-d, --data=n" . " Optional data to fetch (default: Connections)" . " available data : Connections Cache Resources Memory FileDescriptors", required => 0 ); $np->add_arg( spec => 'port|p=i', help => "-p, --port=n" . " Optional port number (default: 3128)", required => 0 ); $np->add_arg( spec => 'user|U=s', help => "-U, --user=n" . " Optional WWW user (default: root)", required => 0 ); $np->add_arg( spec => 'password|W=s', help => "-W, --password=n" . " Optional WWW password", required => 0 ); $np->add_arg( spec => 'warning|w=s', help => "-w, --warning=THRESHOLDn" . " Warning threshold. Seen" . " http://nagiosplug.sourceforge.net/developer-guidelines.html#THRESHOLDFORMATn" . ' for the threshold format.', required => 0, ); $np->add_arg( spec => 'critical|c=s', help => "-c, --critical=THRESHOLDn" . " Critical threshold. Seen" . " http://nagiosplug.sourceforge.net/developer-guidelines.html#THRESHOLDFORMATn" . ' for the threshold format.', required => 0, ); $np->add_arg( spec => 'squidclient|s=s', help => "-s, --squidclient=n" . " Path of squidclient (default: /usr/bin/squidclient)", required => 0, ); $np->getopts; my $host = $np->opts->host; my $port = $np->opts->port; my $data = $np->opts->data; my $user = $np->opts->user; my $password = $np->opts->password; my $critical = $np->opts->critical; my $warning = $np->opts->warning; my $squidclient = $np->opts->squidclient; $host = 'localhost' if (!defined($host) or $host eq ''); $port = 3128 if (!defined($port) or $port eq ''); $data = 'Connections' if (!defined($data) or $data eq ''); $user = 'root' if (!defined($user) or $user eq ''); $password = '' if (!defined($password)); $critical = undef if (defined($critical) and $critical eq ''); $warning = undef if (defined($warning) and $warning eq ''); $squidclient = '/usr/bin/squidclient' if (!defined($squidclient) or $squidclient eq ''); $np->set_thresholds(critical => $critical, warning => $warning); # squidclient -h localhost -p 8080 -U root -W FPSlsker mgr:info @exec = ("-h", "Q$host", "-p", "Q$port", "-U", "Q$user", "-W", "Q$password", "mgr:info"); @result = `$squidclient @exec`; my $fd_available; my $fd_used; my $memory_available; my $memory_used; my $connection_nbclient; my $connection_nbicpreceived; my $connection_nbicpsent; my $connection_nbicpqueued; my $cache_requesthitratio5; my $cache_requesthitratio60; my $cache_bytehitratio5; my $cache_bytehitratio60; for my $line (@result) { chomp($line); # Connection information for squid: # Number of clients accessing cache: 1203 $line =~ /s+Number of clients accessing cache:s+([0-9]+)/ and $connection_nbclient = $1; # Number of HTTP requests received: 8892278 $line =~ /s+Number of HTTP requests received:s+([0-9]+)/ and $connection_nbhttpreceived = $1; # Number of ICP messages received: 0 $line =~ /s+Number of ICP messages received:s+([0-9]+)/ and $connection_nbicpreceived = $1; # Number of ICP messages sent: 0 $line =~ /s+Number of ICP messages sent:s+([0-9]+)/ and $connection_nbicpsent = $1; # Number of queued ICP replies: 0 $line =~ /s+Number of queued ICP replies:s+([0-9]+)/ and $connection_nbicpqueued = $1; # Request failure ratio: 0.00 # Average HTTP requests per minute since start: 1247.5 # Average ICP messages per minute since start: 0.0 # Select loop called: 407414146 times, 1.050 ms avg # Cache information for squid: # Request Hit Ratios: 5min: 32.8%, 60min: 33.9% # $line =~ /s+Request Hit Ratios:s+5min:s+([0-9.]+)%,s+60min:s+([0-9.]+)%/ and $cache_requesthitratio5 = $1 and $cache_requesthitratio60 = $2; # Hits as % of all requests: 5min: 0.0%, 60min: 0.0% $line =~ /s+Hits as % of all requests:s+5min:s+([0-9.]+)%,s+60min:s+([0-9.]+)%/ and $cache_requesthitratio5 = $1 and $cache_requesthitratio60 = $2; # Byte Hit Ratios: 5min: 23.7%, 60min: 20.9% # $line =~ /s+Byte Hit Ratios:s+5min:s+([0-9.]+)%,s+60min:s+([0-9.]+)%/ and $cache_bytehitratio5 = $1 and $cache_bytehitratio60 = $2; # Hits as % of bytes sent: 5min: 100.0%, 60min: 100.0% $line =~ /s+Hits as % of bytes sent:s+5min:s+([0-9.]+)%,s+60min:s+([0-9.]+)%/ and $cache_bytehitratio5 = $1 and $cache_bytehitratio60 = $2; # Request Memory Hit Ratios: 5min: 20.3%, 60min: 24.9% # Request Disk Hit Ratios: 5min: 25.0%, 60min: 23.9% # Storage Swap size: 27694948 KB # Storage Mem size: 614304 KB # Mean Object Size: 26.96 KB # Requests given to unlinkd: 1318030 # Median Service Times (seconds) 5 min 60 min: # HTTP Requests (All): 0.03622 0.02742 # Cache Misses: 0.07825 0.06640 # Cache Hits: 0.00091 0.00091 # Near Hits: 0.03241 0.04047 # Not-Modified Replies: 0.00091 0.00000 # DNS Lookups: 0.00094 0.00094 # ICP Queries: 0.00000 0.00000 # Resource usage for squid: # UP Time: 427690.730 seconds # CPU Time: 7524.043 seconds # CPU Usage: 1.76% $line =~ /s+CPU Usage:s+([0-9.]+)%/ and $resource_cpu5s = $1; # CPU Usage, 5 minute avg: 7.99% $line =~ /s+CPU Usage, 5 minute avg:s+([0-9.]+)%/ and $resource_cpu5m = $1; # CPU Usage, 60 minute avg: 10.03% $line =~ /s+CPU Usage, 60 minute avg:s+([0-9.]+)%/ and $resource_cpu60m = $1; # Process Data Segment Size via sbrk(): 875680 KB # Maximum Resident Size: 0 KB # Page faults with physical i/o: 2 # Tachtler -------------- # Tachtler - deprecated - # Tachtler -------------- # Memory usage for squid via mallinfo(): # Total space in arena: 875812 KB # Ordinary blocks: 811063 KB 97332 blks # Small blocks: 0 KB 0 blks # Holding blocks: 3996 KB 6 blks # Free Small blocks: 0 KB # Free Ordinary blocks: 64748 KB # Total in use: 815059 KB 93% # $line =~ /s+Total in use:s+([0-9]+)/ and $memory_used = $1; # Total free: 64748 KB 7% # Total size: 879808 KB # $line =~ /s+Total size:s+([0-9]+)/ and $memory_available = $1; # Tachtler -------------- # Tachtler - deprecated - # Tachtler -------------- # Memory accounted for: # Total accounted: 750343 KB # memPoolAlloc calls: 1149188126 # memPoolFree calls: 1144643200 # File descriptor usage for squid: # Maximum number of file descriptors: 4096 # Largest file desc currently in use: 718 # Number of file desc currently in use: 692 # Files queued for open: 0 # Available number of file descriptors: 3404 # Reserved number of file descriptors: 100 # Store Disk files open: 2 # IO loop method: epoll $line =~ /s+Maximum number of file descriptors:s+([0-9]+)/ and $fd_available = $1; $line =~ /s+Number of file desc currently in use:s+([0-9]+)/ and $fd_used = $1; # Internal Data Structures: # 1027146 StoreEntries # 50047 StoreEntries with MemObjects # 50004 Hot Object Cache Items # 1027079 on-disk objects } # Tachtler -------------- # Tachtler - Memory - # Tachtler -------------- # squidclient -h localhost -p 8080 -U root -W FPSlsker mgr:mem @exec = ("-h", "Q$host", "-p", "Q$port", "-U", "Q$user", "-W", "Q$password", "mgr:mem"); @result = `$squidclient @exec`; for my $line (@result) { chomp($line); $line =~ /Totals+.s+([0-9]+)s+([0-9]+)s+([0-9]+)s+([0-9.]+)s+([0-9.]+)s+([0-9]+)s+([0-9]+)/ and $memory_available = $2 and $memory_used = $7; } # Tachtler -------------- # Tachtler - Memory - # Tachtler -------------- if($data =~ /Connections/i) # Connections Cache Resources Memory FileDescriptors { $np->add_perfdata( label => "HTTP requests", value => $connection_nbhttpreceived, uom => "c"); $np->add_perfdata( label => "sent ICP requests", value => $connection_nbicpsent, uom => "c"); $np->add_perfdata( label => "received ICP requests", value => $connection_nbicpreceived, uom => "c"); $np->nagios_exit('OK', "Squid have $connection_nbclient clients and $connection_nbicpqueued ICP requests queued"); } if($data =~ /Cache/i) { $np->add_perfdata( label => "Hits as % of all requests 5min", value => $cache_requesthitratio5, uom => "%"); $np->add_perfdata( label => "Hits as % of all requests 60min", value => $cache_requesthitratio60, uom => "%"); $np->add_perfdata( label => "Hits as % of bytes sent 5min", value => $cache_bytehitratio5, uom => "%"); $np->add_perfdata( label => "Hits as % of bytes sent 60min", value => $cache_bytehitratio60, uom => "%"); $np->nagios_exit('OK', "Hits as % of all requests 5min: $cache_requesthitratio5, Hits as % of all requests 60min: $cache_requesthitratio60, Hits as % of bytes sent 5min: $cache_bytehitratio5, Hits as % of bytes sent 60min: $cache_bytehitratio60"); } if($data =~ /Resources/i) { $np->add_perfdata( label => "CPU used 5s", value => $resource_cpu5s, uom => "%"); $np->add_perfdata( label => "CPU used 5m", value => $resource_cpu5m, uom => "%"); $np->add_perfdata( label => "CPU used 60m", value => $resource_cpu60m, uom => "%"); $np->nagios_exit('OK', "CPU used 5s: $resource_cpu5s, CPU used 5m: $resource_cpu5m, CPU used 60m: $resource_cpu60m"); } if($data =~ /Memory/i) { my $t = Nagios::Plugin::Threshold->set_thresholds(warning => $warning, critical => $critical); $np->add_perfdata( label => "Memory used", value => $memory_used, uom => "KB", threshold => $t); $np->add_perfdata( label => "Memory available", value => $memory_available, uom => "KB"); $np->nagios_exit($np->check_threshold($memory_used), "Squid use $memory_used KB of memory"); } if($data =~ /FileDescriptors/i) { my $t = Nagios::Plugin::Threshold->set_thresholds(warning => $warning, critical => $critical); $np->add_perfdata( label => "Max FD", value => $fd_available); $np->add_perfdata( label => "Cur FD", value => $fd_used, threshold => $t); $np->nagios_exit($np->check_threshold($fd_used), 'Squid work fine.'); } # $np->nagios_exit('OK', $output); # $np->nagios_exit('WARNING', $output); # $np->nagios_exit('CRITICAL', $output); # $np->nagios_exit('UNKNOWN', $output); # $np->nagios_exit('DEPENDENT', $output);

Reviewed 9 years ago

Change some lines to work in newer OS/TFTP versions

Good but in newer versions you have to change following lines: ORIG: RESULT="$(echo get NaGiOs_ChEcK_FiLe | tftp $HOST 2>&1 | head -n 1)" TO RESULT="$(echo get NaGiOs_ChEcK_FiLe | tftp -v $HOST 2>&1 | grep Received)" ORIG: RESULT="$(echo get $FILENAME | tftp $HOST 2>&1 | head -n 1)" TO: RESULT="$(echo get $FILENAME | tftp $HOST 2>&1 | grep Received)" ORIG: *"Received "*" bytes in "*" seconds") TO: *"Received "*" bytes in "*" seconds"*) Than it will work fine again! Klaus Tachtler.

Reviewed 10 years ago

patch for CentOS 7 - PHP 7.x

I had to add some fix to this scipt: in line 304 the is a "limit": if len(output) > number_total_updates + 25 / OR 25000: I had to change this value to 50000: because output from yum --security check-update has about 29000 lines.

Reviewed 8 years ago