#!/usr/bin/env perl # # Author: Bertrand Drouvot # Visit my blog : https://bdrouvot.wordpress.com/ # V1.0 (2016/01) # # Description: # Utility used to display dnfs metrics in real time per snap or per average since the collection began. # It basically takes a snapshot each second (default interval) of the gv$dnfs_stats view and computes the delta # with the previous snapshot. # You have to set oraenv on one DB instance # The utility is RAC aware # No need to be multitenant aware as con_id=0 into gv$dnfs_stats for 12.1 in any cases even if pdbs are created # You can choose the number of snapshots to display and the time to wait between snapshots. # # Usage: # ./db_io_dnfs_metrics.pl -help # # Chek for new version : https://bdrouvot.wordpress.com/db_io_dnfs_metrics_script/ # #----------------------------------------------------------------# BEGIN { die "ORACLE_HOME not set\n" unless $ENV{ORACLE_HOME}; unless ($ENV{OrAcLePeRl}) { $ENV{OrAcLePeRl} = "$ENV{ORACLE_HOME}/perl"; $ENV{PERL5LIB} = "$ENV{PERL5LIB}:$ENV{OrAcLePeRl}/lib:$ENV{OrAcLePeRl}/lib/site_perl"; $ENV{LD_LIBRARY_PATH} = "$ENV{LD_LIBRARY_PATH}:$ENV{ORACLE_HOME}/lib32:$ENV{ORACLE_HOME}/lib"; exec "$ENV{OrAcLePeRl}/bin/perl", $0, @ARGV; } } use strict; use DBI; use DBD::Oracle qw(:ora_session_modes); use Getopt::Long; our %options; our $debug=0; our $version; our $sub_version; our $nb_pdbs=0; our $interval=1; our $count=999999; our $showinst=0; our $rac=0; our $inst_type='RDBMS'; our $dbh; our $instpattern='all'; our $show_pattern='inst'; our $display_pattern='snap'; our $instid_pattern='inst_id'; our $sqlsuffixe; our $sql1; our $main_sql=''; our %instances; our %showinstances=(); our %sql_patterns; our %diffsnaps; our %avgdiffsnaps=(); our %rtvalues; our %pkeys; our $bkey; our @ekey; our %ckeys=(); our @array_of_ckeys_description=(); our @array_of_display_keys=(); our @array_of_ckey=(); our @delta_fields; our $global_sql_pattern=''; our @array_of_report_header; our $report_format_values; our @report_fields_values; our $seconds; our $minuts; our $hours; our @since_timing; our %sort_fields; our $sort_field_pattern=''; our $global_group_by_pattern=''; sub main { &get_the_options(@ARGV); $instid_pattern="inst_id"; my $ckey_cpt=0; &connect_db; $version=check_version(); $sub_version=check_sub_version(); if ($sub_version =~ m/^notok$/i ){ print "\n\n ERROR : You must connect to a database instance version >= 11.2.0.4\n\n"; exit 1; } if ($version >= 12) {$nb_pdbs=check_pdbs()}; $sort_fields{1}='READS'; $sort_fields{2}='WRITES'; $sort_fields{6}='NONE'; $sort_fields{3}='IOPS'; %sort_fields = reverse %sort_fields; if (!$sort_field_pattern) {$sort_field_pattern='NONE'}; $main_sql=" select inst_id,sum(NFS_READ),sum(NFS_WRITE),sum(NFS_READ+NFS_WRITE) as IOPS,sum(NFS_READBYTES)/1024,sum(NFS_WRITEBYTES)/1024,$interval as interval,sum(NFS_READBYTES+NFS_WRITEBYTES)/1024/1024 from gv\$dnfs_stats where 1=1 "; $global_group_by_pattern=" group by inst_id"; $pkeys{0}='%30s'; # What need to be show my @show_fields = split (/,/,$show_pattern); foreach my $show (@show_fields) { if ($show =~ m/^inst$/i ){ # group by instance $array_of_ckeys_description[$ckey_cpt]{0}='%30s'; $array_of_ckeys_description[$ckey_cpt]{6}='%10s'; $array_of_display_keys[$ckey_cpt]{0}='y'; $array_of_display_keys[$ckey_cpt]{6}='y'; $ckey_cpt=$ckey_cpt+1; } } @delta_fields=(1,2,3,4,5,7); $report_format_values="%02d:%02d:%02d %1s %-10s %1s %-7.0f %1s %-7.0f %1s %-7.0f %1s %-8.0f %1s %-7.0f %1s %-8.0f %1s %-8.0f %1s %-8.1f\n"; @report_fields_values=("1/6","4/6","4*1024/1","2/6","5/6","5*1024/2","3","7/6"); @array_of_report_header=(["%02d:%02d:%02d %24s %-7s %1s %-7s %12s %-7s %1s %-7s\n",'','Kby','','AvgBy/','','Kby','','AvgBy/'],["%02d:%02d:%02d %1s %-10s %1s %-7s %1s %-7s %1s %-7s %1s %-8s %1s %-7s %1s %-8s %1s %-8s %1s %-8s\n",'','INST','','Reads/s','','Read/s','','Read','','Writes/s','','Write/s','','Write','','IOPS','','MB/s'],["%02d:%02d:%02d %1s %-10s %1s %-7s %1s %-7s %1s %-7s %1s %-8s %1s %-7s %1s %-8s %1s %-8s %1s %-8s\n",'','----------','','-------','','-------','','-------','','--------','','-------','','--------','','--------','','--------']); &go_sql_real_time; } # # Ctrl+C signal # $SIG{INT}= \&close; sub close { print "Disconnecting from RDBMS...\n"; $sql1->finish; $dbh->disconnect(); exit 0; } sub get_the_options { my $help; GetOptions('help|h' => \$help, 'interval=i'=>\$interval, 'count=i'=>\$count, 'inst:s' => \$instpattern, 'sort_field:s' => \$sort_field_pattern, 'display:s' => \$display_pattern, 'show:s' => \$show_pattern) or &usage(); &usage() if ($help); } sub go_sql_real_time { &connect_db; &check_instance_type($inst_type); &check_rac; &build_instances; &build_rac_pattern; &build_glob_sql_pattern; &build_glob_sql; &initialise_arrays; &launch_loop; } sub connect_db { $dbh = DBI->connect('dbi:Oracle:',"", "", { ora_session_mode => ORA_SYSDBA }); } sub check_instance_type { my $inst_type=$_[0]; debug("Instance Type: ".$inst_type); my $sql1 = $dbh->prepare('select value from v$parameter where name=\'instance_type\' '); $sql1->execute; if ( $sql1->fetchrow_array =~ /$inst_type/i) { $sql1->finish; } else { print "\n\n ERROR : You must connect to a ".$inst_type." instance \n\n"; $sql1->finish; $dbh->disconnect(); exit 1; } } sub check_rac { my $sql1 = $dbh->prepare('select value from v$parameter where name = \'cluster_database\''); $sql1->execute; if ( $sql1->fetchrow_array =~ /true/i) { $rac=1; } $sql1->finish; } sub check_version { my $sql1 = $dbh->prepare('select regexp_replace(version,\'\..*\') from v$instance'); $sql1->execute; return ($sql1->fetchrow_array); $sql1->finish; } sub check_sub_version { my $sql1 = $dbh->prepare('select case when substr( b.banner, instr(b.banner, \'Release \')+8, instr(substr(b.banner,instr(b.banner,\'Release \')+8),\' \') ) >= \'11.2.0.4\' then \'ok\' else \'notok\' end from ( select replace(banner,\'9.\',\'09.\') banner from v$version where rownum = 1 ) b'); $sql1->execute; return ($sql1->fetchrow_array); $sql1->finish; } sub check_pdbs { my $sql1 = $dbh->prepare('select count(*) from v$pdbs'); $sql1->execute; return ($sql1->fetchrow_array); $sql1->finish; } sub build_instances { my $sql1 = $dbh->prepare('select inst_id,instance_name, host_name from gv$instance'); $sql1->execute; while ( my ($instid, $instname,$host) = $sql1->fetchrow_array) { $instances{$instname} = $instid; } $sql1->finish; } sub build_in_pattern { my $pattern=shift; my $column=shift; my %list_of_field=@_; my %reverse_list_of_field = reverse %list_of_field; my @fields = split (/,/,$pattern); my $output_in_pattern=''; foreach my $field (@fields) { if (!exists $reverse_list_of_field{uc($field)}) { print "\n\n ERROR : $field $column is not found !! \n"; exit 1; } else { if (!$output_in_pattern) { $output_in_pattern=" and $column in ('"."$reverse_list_of_field{uc($field)}'"; } else { $output_in_pattern=$output_in_pattern.",'$reverse_list_of_field{uc($field)}'"; } } } ($output_in_pattern)?$output_in_pattern=$output_in_pattern.")":""; return $output_in_pattern; } sub build_rac_pattern { if ($rac & ! ($instpattern =~ /all|current/i)) { my @fields = split (/,/,$instpattern); foreach my $instname (@fields) { if (!exists $instances{uc($instname)}) { print "\n\n ERROR : The instance $instname is not found !! \n"; $dbh->disconnect(); exit 1; } else { $showinstances{$instname}=$instances{$instname};; } } } # If not rac put pattern as current if (! $rac) { $instpattern = 'current'; } if ($instpattern =~ /current/i) { my $sql1_sql = "select inst_id,instance_name, host_name from gv\$instance where inst_id = userenv('instance')"; my $sql1 = $dbh->prepare($sql1_sql); $sql1->execute; while ( my ($instid, $instname,$host) = $sql1->fetchrow_array) { $instances{$instname} = $instid; } $sql1->finish; } if (($rac & ($instpattern =~ /all|current/i)) | (! $rac & ($instpattern =~ /current/i))) { %showinstances = %instances; } # RAC : Create the SQL suffixe based on the instances to request on # Case 1 : The current instance or list of instances $sqlsuffixe = ((! $rac) | ($rac & $instpattern =~ /current/i) ? " and ".$instid_pattern. " = userenv('instance')" : ""); # Case 2 : All the instances # Nothing to do if ($rac & ! ($instpattern =~ /all|current/i)) { foreach my $inst (keys %showinstances) { my $inst_id = $showinstances{$inst}; if ($sqlsuffixe) { $sqlsuffixe = $sqlsuffixe." or ".$instid_pattern. " = $inst_id"; } else { $sqlsuffixe = $sqlsuffixe." and (".$instid_pattern. " = $inst_id"; } } $sqlsuffixe = $sqlsuffixe.")"; } debug("sqlsuffixe: ".$sqlsuffixe); # Reverse the hash for display usage (Report Section) %showinstances = reverse %showinstances; } sub build_glob_sql_pattern { foreach my $column (keys %sql_patterns) { debug("column: ".$column); debug("pattern: ".$sql_patterns{$column}); if ($sql_patterns{$column}) {$global_sql_pattern = $global_sql_pattern." and ".$column." like '".$sql_patterns{$column}."' "} } debug("global_sql_pattern: ".$global_sql_pattern); } sub build_glob_sql { $main_sql = $main_sql.$global_sql_pattern.$sqlsuffixe.$global_group_by_pattern; debug("Main sql: ".$main_sql); } sub build_the_key { my @tab1 = @_; $bkey=''; @ekey=(); foreach my $id (sort { $a <=> $b }(keys %pkeys)) { if ($bkey) {$bkey = $bkey.".".$pkeys{$id}}; if (!$bkey) {$bkey = $pkeys{$id}}; push(@ekey,$tab1[$id]); } } sub build_compute_key { my @tab1 = @_; for my $i ( 0 .. $#array_of_ckeys_description ) { my $bckey=''; my @eckey=(); for my $j ( sort { $a <=> $b } (keys %{ $array_of_ckeys_description[$i] }) ) { ($bckey)?($bckey = $bckey.".".$array_of_ckeys_description[$i]{$j}):($bckey = $array_of_ckeys_description[$i]{$j}); push(@eckey,$tab1[$j]); } my $ckey = sprintf($bckey,@eckey); $array_of_ckey[$i]=$ckey; } } sub initialise_arrays { $sql1 = $dbh->prepare($main_sql); my $key; $sql1->execute; while ( my @tab1 = $sql1->fetchrow_array) { &build_the_key(@tab1); $key = sprintf($bkey,@ekey); @{$rtvalues{$key}}=@tab1; @{$diffsnaps{$key}}=@tab1; debug("key is : ".$key); } } sub launch_loop { my $key; my $ckey; my $cpt=0; for (my $nb=0;$nb < $count;$nb++) { print "............................\n"; print "Collecting $interval sec....\n"; print "............................\n"; sleep $interval; $sql1->execute; ($seconds, $minuts, $hours) = localtime(time); # Keep the first timing for the average section ($cpt==0)?(@since_timing=($hours,$minuts,$seconds)):""; # Empty diffsnaps %diffsnaps = (); while ( my @tab1 = $sql1->fetchrow_array) { &build_the_key(@tab1); $key = sprintf($bkey,@ekey); # Build the compute key &build_compute_key(@tab1); # Initialise non delta fields for (my $tabid=0;$tabid < scalar(@tab1);$tabid++) { for my $i ( 0 .. $#array_of_ckeys_description ) { my $ckey=$array_of_ckey[$i]; $diffsnaps{$ckey}->[$tabid]=($array_of_display_keys[$i]{$tabid}?"$tab1[$tabid]":"") unless (grep (/^$tabid$/,@delta_fields)); $avgdiffsnaps{$ckey}->[$tabid]=($array_of_display_keys[$i]{$tabid}?"$tab1[$tabid]":"") unless (grep (/^$tabid$/,@delta_fields)); debug("Non delta fields: for display_keys $array_of_display_keys[$i]{$tabid} and tabid $tabid ".$diffsnaps{$ckey}->[$tabid]); } } # get the list of delta fields foreach my $deltaid (@delta_fields) { for my $i ( 0 .. $#array_of_ckeys_description ) { my $ckey=$array_of_ckey[$i]; debug("deltaid : ".$deltaid); debug("key is : ".$key); debug("ckey during diff is : ".$ckey); $diffsnaps{$ckey}->[$deltaid] = $diffsnaps{$ckey}->[$deltaid] + $tab1[$deltaid] - $rtvalues{$key}->[$deltaid]; debug("Previous : ".$rtvalues{$key}->[$deltaid]); debug("Current : ".$tab1[$deltaid]); debug("Diff is : ".$diffsnaps{$ckey}->[$deltaid]); } } @{$rtvalues{$key}} = @tab1; debug("key is : ".$key); debug("ckey is : ".$ckey); } # compute the average since the collection began foreach my $deltaid (@delta_fields) { foreach my $diffkey (keys %diffsnaps){ $avgdiffsnaps{$diffkey}->[$deltaid] = (($avgdiffsnaps{$diffkey}->[$deltaid] * $cpt) + $diffsnaps{$diffkey}->[$deltaid]) / ($cpt+1); } } $cpt=$cpt+1; # Report now for snaps (grep (/snap/i,$display_pattern))?(print "\n"):""; (grep (/snap/i,$display_pattern))?(print "......... SNAP TAKEN AT ...................\n"):""; (grep (/snap/i,$display_pattern))?(print "\n"):""; (grep (/snap/i,$display_pattern))?(&report_header("snap",@array_of_report_header)):""; (grep (/snap/i,$display_pattern))?(&report_values("snap",%diffsnaps)):""; # Report now for average (grep (/avg/i,$display_pattern))?(print "\n"):""; (grep (/avg/i,$display_pattern))?(print "......... AVERAGE SINCE ...................\n"):""; (grep (/avg/i,$display_pattern))?(print "\n"):""; (grep (/avg/i,$display_pattern))?(&report_header("avg",@array_of_report_header)):""; (grep (/avg/i,$display_pattern))?(&report_values("avg",%avgdiffsnaps)):""; } } sub report_header { my $display_date = shift; my @array_of_report_header = @_; foreach my $report_ligne (0..@array_of_report_header-1) { my @header; @header = ($display_date eq "avg")?(@since_timing):($hours,$minuts,$seconds); foreach my $report_column (1..@{$array_of_report_header[$report_ligne]}) { push(@header,$array_of_report_header[$report_ligne][$report_column]); } printf ($array_of_report_header[$report_ligne][0],@header); } } sub report_resultset { my $display_date = shift; my $pk=shift; my %resultset=@_; my $backup_mult; my @values; @values = ($display_date eq "avg")?(@since_timing):($hours,$minuts,$seconds); if (%showinstances) {push(@values,'',$showinstances{$resultset{$pk}->[0]})}; foreach my $id (@report_fields_values) { push(@values,''); my @need_div=split(/\//,$id); my @need_mult=split(/\*/,$id); if (@need_mult > 1) { $need_mult[1] =~ s/\/.*//; $backup_mult = $resultset{$pk}->[$need_mult[0]]; $resultset{$pk}->[$need_mult[0]] = ($resultset{$pk}->[$need_mult[0]]) * $need_mult[1]; debug("Mult is needed for id : ".$id); debug("Mult[0] is : ".$need_mult[0]); debug("Mult[1] is : ".$need_mult[1]); } if (@need_div > 1) { $need_div[0] =~ s/\*.*//; debug("Div is needed for id : ".$id); debug("needed_div is : ".@need_div); debug("div[0] is : ".$need_div[0]); debug("div[1] is : ".$need_div[1]); if ($resultset{$pk}->[$need_div[1]] > 0) {push(@values,$resultset{$pk}->[$need_div[0]]/$resultset{$pk}->[$need_div[1]])}; if ($resultset{$pk}->[$need_div[1]] == 0) {push(@values,0)}; } else { push(@values,$resultset{$pk}->[$id]); } # In case the resultset has been changed, then put the value back (For the average..) if (@need_mult > 1) { $resultset{$pk}->[$need_mult[0]] = $backup_mult; } } printf ($report_format_values,@values); } sub report_values { my $nb =1; my %resultset = (); my $display_date = shift; my %display_what = @_; my $rank = 1; my %ranked_instances = (); # rank the instance based on the sort field foreach my $pk (sort {$display_what{$b}[$sort_fields{uc($sort_field_pattern)}] <=> $display_what{$a}[$sort_fields{uc($sort_field_pattern)}] || $display_what{$a}[0] <=> $display_what{$b}[0]} (keys(%display_what))) { if (!(exists $ranked_instances{$display_what{$pk}[0]})) { $ranked_instances{$display_what{$pk}[0]}=$rank; $display_what{$pk}->[99] = $rank; $rank++; } else { $display_what{$pk}->[99] = $ranked_instances{$display_what{$pk}[0]}; } debug("Rank is ".$display_what{$pk}->[99]." for instance ".$display_what{$pk}[0]); } if ($nb_pdbs == 0) { foreach my $pk (sort {$display_what{$a}[99] <=> $display_what{$b}[99] || $display_what{$b}[$sort_fields{uc($sort_field_pattern)}] <=> $display_what{$a}[$sort_fields{uc($sort_field_pattern)}] || $display_what{$a}[1] cmp $display_what{$b}[1] || $display_what{$a}[3] cmp $display_what{$b}[3] || $display_what{$a}[10] cmp $display_what{$b}[10]} (keys(%display_what))) { &report_resultset($display_date,$pk,%display_what); debug("Sorted value is : ".$display_what{$pk}[$sort_fields{uc($sort_field_pattern)}]); } } else { foreach my $pk (sort {$display_what{$a}[99] <=> $display_what{$b}[99] || $display_what{$b}[$sort_fields{uc($sort_field_pattern)}] <=> $display_what{$a}[$sort_fields{uc($sort_field_pattern)}] || $display_what{$a}[1] cmp $display_what{$b}[1] || $display_what{$a}[2] cmp $display_what{$b}[2] || $display_what{$a}[4] cmp $display_what{$b}[4] || $display_what{$a}[11] cmp $display_what{$b}[11]} (keys(%display_what))) { &report_resultset($display_date,$pk,%display_what); debug("Sorted value is : ".$display_what{$pk}[$sort_fields{uc($sort_field_pattern)}]); } } } sub usage { &usage_dnfs_metrics(); } sub usage_dnfs_metrics { &connect_db; print " \nUsage: $0 [-interval] [-count] [-inst] [-display] [-sort_field] [-help]\n"; print "\n"; print " Default Interval : 1 second.\n"; print " Default Count : Unlimited\n\n"; printf (" %-15s %-65s %-10s \n",'Parameter','Comment','Default'); printf (" %-15s %-65s %-10s \n",'---------','-------','-------'); printf (" %-15s %-65s %-10s \n",'-INST=','ALL - Show all Instance(s) ','ALL'); printf (" %-15s %-65s %-10s \n",'','CURRENT - Show Current Instance ',''); printf (" %-15s %-65s %-10s \n",'-DISPLAY=','What to display: snap,avg (comma separated list)','SNAP'); printf (" %-15s %-65s %-10s \n",'-SORT_FIELD=','reads|writes|iops','NONE'); print ("\n"); print ("Example: $0 \n"); print ("Example: $0 -inst=BDT_1\n"); print ("Example: $0 -sort_field=reads\n"); print "\n\n"; exit 1; } sub debug { if ($debug==1) { print $_[0]."\n"; } } &main(@ARGV);