mirror of
https://github.com/Telecominfraproject/wlan-lanforge-scripts.git
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wait_on_ports: batch query improvements
- querying large numbers of ports will uses cached data - querying a batch of ports parses one show_port result - show_port is now queried with flag 16 to avoid forcing gateway inspection
This commit is contained in:
Jed Reynolds
159
wait_on_ports.pl
159
wait_on_ports.pl
@@ -5,6 +5,7 @@
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use strict;
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use warnings;
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use diagnostics;
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use Data::Dumper;
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$| = 1;
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use Net::Telnet ();
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@@ -16,7 +17,7 @@ package main;
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# so as to reduce chance of timeout
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our $batch_thresh = 3;
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# if caching_ok > 0, use a c_show_port to get older results faster
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our $use_caching = 0;
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our $use_caching = -1;
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our $card = 1; # resource id
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my $mgr = "localhost";
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my $mgr_port = "4001";
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@@ -125,37 +126,152 @@ else {
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die("No resource defined, bye.") if (! defined $card);
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my $num_ports_down = @::port_list;
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my $state = undef;
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my $ip = undef;
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if ($verbose > 2) {
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print "\nWe have ".(0+@::port_list)." ports: ".join(",", sort @::port_list), "\n";
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}
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# performance and timeouts: just probing a port or two is pretty easy, but repeatedly calling nc_show_port
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# can chance a timeout, which is pretty messy. Setting a batch-level threshold to check nc_show_port 1 $c ALL
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# should reduce chances of timeout
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sub query_show_port {
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my $port = shift;
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if (!defined $port || "$port" eq "") {
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die("query_show_port called without port argument");
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}
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my $statblock = "";
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if (($::use_caching < 0) && (@::port_list > (2 * $::batch_thresh))) {
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print STDERR "Turning on use_caching at 2x batch threshold\n";
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$::use_caching = 1;
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}
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my $show = ($::use_caching > 0) ? "c_show_port" : "nc_show_port";
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if (@::port_list < $::batch_thresh) {
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$statblock = $utils->doAsyncCmd($utils->fmt_cmd($show, 1, $::card, $port, "16"));
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}
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else {
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$statblock = $utils->doAsyncCmd($utils->fmt_cmd($show, 1, $::card, 'all', "16"));
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}
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my @blocklines = split("\n", $statblock);
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chomp @blocklines;
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return @blocklines;
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}
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=pod
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expects arg1 $portname
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expects arg2 @$ra_statblock to parse
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expects arg3 %$rh_hashref
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arg3 hash of {portname => {state=>x, ip=>y}}
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We find a port by this type of pattern:
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Alias: is not populated unless there is a user alias override set.
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Record ends with an empty line.
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---------------------------------------------
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Shelf: 1, Card: 2, Port: 8 Type: STA Alias:
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.*
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MAC: 00:0e:8e:54:42:62 DEV: sta2100 .*
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---------------------------------------------
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=cut
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sub parse_show_port {
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my $portname = shift;
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my $ra_statblock = shift;
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my $rh_port_stat = shift;
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die ("parse_show_port: called without arg1:portname")
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if (!defined $portname || "$portname" eq "");
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die ("parse_show_port: called without arg2:statblock")
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if (!defined $ra_statblock || ref($ra_statblock) ne "ARRAY");
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die ("parse_show_port: called without arg3: rh_port_stat")
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if (!defined $rh_port_stat || ref($rh_port_stat) ne "HASH");
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#for my $line (@$ra_statblock) {
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# print "\nL: $line";
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#}
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print " $portname " if ($verbose > 3);
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my $state = "";
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my $ip = "";
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my (@devicelines) = grep {/^\s+MAC: [^ ]+\s+DEV: [^ ]+ /} @$ra_statblock;
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if (@devicelines < 1) {
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print STDERR "device $portname not found\n";
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$rh_port_stat->{'state'} = $state;
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$rh_port_stat->{'ip'} = $ip;
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return;
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}
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# loop through statblock and grep regions divided by blank lines
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my @current_region = ();
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for my $line (@$ra_statblock) {
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if ($line =~ /^Shelf: 1, Card:/) {
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@current_region = ();
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}
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push (@current_region, $line);
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if ($line =~ /^\s*$/) {
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@devicelines = grep {/^\s+MAC: [^ ]+\s+DEV:\s+$portname\s+ /} @current_region;
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next
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if (@devicelines < 1);
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print join("\nDEV| ", @current_region)."\n"
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if ($::verbose > 3) ;
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my (@state) = grep {/^\s+Current:\s+([^ ]+)/} @current_region;
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print join("\nState: ", @state)."\n"
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if ($::verbose > 3);
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($state) = $state[0] =~ /^\s+Current:\s+([^ ]+)/
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if (@state > 0);
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my (@ip) = grep {/^\s+IP:\s+([^ ]+)/} @current_region;
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print join("\nIP: ", @ip)."\n"
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if ($::verbose > 3);
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($ip) = $ip[0] =~ /^\s+IP:\s+([^ ]+)/
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if (@ip > 0);
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last;
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} # ~if at end of record
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} #~for each line
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# retro below
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if (! defined $state) {
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print "STATE undefined: -- \n";
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}
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if (! defined $ip) {
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print "IP undefined: -- \n";
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}
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$rh_port_stat->{'state'} = $state;
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$rh_port_stat->{'ip'} = $ip;
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}
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my %port_stat = (
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'state' => 0,
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'ip' => "",
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);
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while( $num_ports_down > 0 ) {
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my @ports_up = ();
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my @ports_down = ();
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my @statblock = ();
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for my $port (sort @::port_list) {
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my $statblock = $utils->doAsyncCmd($utils->fmt_cmd("nc_show_port", 1, $card, $port));
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#print $statblock;
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print " $port " if ($verbose > 3);
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($state) = $statblock =~ /^\s+Current:\s+([^ ]+)/m;
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($ip) = $statblock =~ /^\s+IP:\s+([^ ]+)/m;
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if (! defined $state) {
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print "STATE undefined: $statblock\n";
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if (@::port_list < $::batch_thresh) {
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@statblock = query_show_port($port);
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}
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if (! defined $ip) {
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print "IP undefined: $statblock\n";
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elsif (@statblock < 2) {
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@statblock = query_show_port("all");
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}
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#print "\n$port is [$state] ";# if ($quiet =~ /0|no/i);
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#print "\n$ip has [$ip] " ;#if ($quiet =~ /0|no/i);
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parse_show_port($port, \@statblock, \%port_stat);
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print Dumper(\%port_stat)."\n"
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if ($::verbose > 3);
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if ($require_ip) {
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if (($state !~ /down/i) && ($ip !~ /0\.0\.0\.0/)) {
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if (($port_stat{'state'} !~ /down/i) && ($port_stat{'ip'} !~ /0\.0\.0\.0/)) {
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$num_ports_down--;
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push(@ports_up, $port);
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print "+" if ($verbose > 0);
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@@ -168,7 +284,7 @@ while( $num_ports_down > 0 ) {
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}
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}
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else {
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if ($state =~ /down/i) {
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if ($port_stat{'state'} =~ /down/i) {
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push(@ports_down, $port);
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print "-" if ($verbose > 0);
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$down_count{$port}++;
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@@ -180,7 +296,8 @@ while( $num_ports_down > 0 ) {
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$down_count{$port} = 0;
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}
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}
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}
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} # ~for each port
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if ($verbose > 1) {
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my $num_ports = @::port_list;
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my $num_ports_up = @ports_up;
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@@ -202,10 +319,12 @@ while( $num_ports_down > 0 ) {
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}
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}
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$num_ports_down = @::port_list;
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@statblock = ();
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print " ";
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print "Napping...\n" if ($verbose > 1);
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sleep 4;
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}
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}
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} # ~while num_ports_down > 0
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print "All ports up.\n" if ($verbose > 0);
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#
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