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113
plugins/other/oracle__tablespace_usage
Executable file
113
plugins/other/oracle__tablespace_usage
Executable file
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#!/usr/bin/perl -w
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# Plugin for monitor oracle database reads.
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#
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# Licenced under GPL v2.
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#
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# Usage:
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#
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# Symlink into /etc/munin/plugins/ and add the monitored
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# database to the filename. e.g.:
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#
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# ln -s /usr/share/munin/plugins/oracle__database__hitratio \
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# /etc/munin/plugins/oracle_<databasename>_database__hitratio
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# This should, however, be given through autoconf and suggest.
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#
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# If required, give username, password and/or Oracle server
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# host through environment variables.
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#
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#
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# Parameters:
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#
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# config (required)
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#
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# Config variables:
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#
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# dbhost - Which database server to use. Defaults to
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# 'localhost'.
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# dbname - Which database to use. Defaults to orl1
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# dbuser - A Oracle user account with read permission to
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# the given database. Defaults to
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# 'oracle'. Anyway, Munin must be told which user
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# this plugin should be run as.
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# dbpass - The corresponding password, if
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# applicable. Default to undef.
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#
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# Magic markers
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#%# family=auto
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#%# capabilities=autoconf
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use strict;
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use DBI;
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my $dbhost = $ENV{'dbhost'} || '127.0.0.1';
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my $dbname = $ENV{'dbname'} || 'orl1';
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my $dbuser = $ENV{'dbuser'} || 'oracle';
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my $dbport = $ENV{'dbport'} || '1521';
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my $dbpass = $ENV{'dbpass'} || '';
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my $warning = $ENV{'warning'} || '90';
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my $critical = $ENV{'critical'} || '96';
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# Check for DBD::Oracle
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if (! eval "require DBD::Oracle;") {
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exit 1;
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}
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my $dsn = "DBI:Oracle:dbname=$dbname;host=$dbhost;port=$dbport;sid=$dbname";
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#print "$dsn\n";
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my $dbh = DBI->connect ($dsn, $dbuser,
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$dbpass,
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{RaiseError =>1}) || die "";
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if (exists $ARGV[0]) {
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if ($ARGV[0] eq 'autoconf') {
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# Check for DBD::Oracle
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if (! eval "require DBD::Oracle;") {
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print "no (DBD::Oracle not found)";
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exit 1;
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}
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if ($dbh) {
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print "yes\n";
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exit 0;
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} else {
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print "no Unable to access Database $dbname on host $dbhost as user $dbuser.\nError returned was: ". $DBI::errstr;
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exit 1;
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}
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}
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if ($ARGV[0] eq "config") {
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print "graph_title Oracle tablespace usage (in %) from $dbname\n";
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print "graph_args --upper-limit 100 -l 0\n";
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print "graph_vlabel %\n";
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print "graph_category Oracle\n";
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print "graph_info This graph shows the tablespace usage (in %)\n";
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print "graph_scale no\n";
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print "warning $warning\n";
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print "critical $critical\n";
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my $sql_curr = "SELECT unique tablespace_name from dba_data_files";
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my $sth_curr = $dbh->prepare($sql_curr);
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$sth_curr->execute();
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while ( my ($datname) = $sth_curr->fetchrow_array ) {
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print "$datname.label $datname\n";
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print "$datname.info $datname tablespace\n";
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print "$datname.type GAUGE\n";
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print "$datname.draw LINE2\n";
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}
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exit 0;
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}
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}
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my $sql_curr = "select a.tablespace_name, b.free,a.total,trunc(b.free/a.total * 1000) / 10 prc \
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from ( \
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select tablespace_name,sum(bytes) total \
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from dba_data_files group by tablespace_name) A, \
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( select tablespace_name,sum(bytes) free \
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from dba_free_space group by tablespace_name) B \
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where a.tablespace_name=b.tablespace_name";
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my $sth_curr = $dbh->prepare($sql_curr);
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$sth_curr->execute();
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while ( my ($datname,$free,$total,$prc) = $sth_curr->fetchrow_array ) {
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my $in_use = 100 - ($free/$total)*100;
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print "$datname.value $in_use\n";
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}
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