157 lines
4.0 KiB
Perl
157 lines
4.0 KiB
Perl
#!/usr/bin/perl
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#
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# memcached-tool:
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# stats/management tool for memcached.
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#
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# Author:
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# Brad Fitzpatrick <brad@danga.com>
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#
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# License:
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# public domain. I give up all rights to this
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# tool. modify and copy at will.
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#
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use strict;
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use IO::Socket::INET;
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my $host = shift;
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my $mode = shift || "display";
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my ($from, $to);
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if ($mode eq "display") {
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undef $mode if @ARGV;
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} elsif ($mode eq "move") {
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$from = shift;
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$to = shift;
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undef $mode if $from < 6 || $from > 17;
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undef $mode if $to < 6 || $to > 17;
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print STDERR "ERROR: parameters out of range\n\n" unless $mode;
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} elsif ($mode eq 'dump') {
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;
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} elsif ($mode eq 'stats') {
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;
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} else {
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undef $mode;
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}
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undef $mode if @ARGV;
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die
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"Usage: memcached-tool <host[:port]> [mode]\n
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memcached-tool 10.0.0.5:11211 display # shows slabs
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memcached-tool 10.0.0.5:11211 # same. (default is display)
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memcached-tool 10.0.0.5:11211 stats # shows general stats
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memcached-tool 10.0.0.5:11211 dump # dumps keys and values
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" unless $host && $mode;
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$host .= ":11211" unless $host =~ /:\d+/;
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my $sock = IO::Socket::INET->new(PeerAddr => $host,
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Proto => 'tcp');
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die "Couldn't connect to $host\n" unless $sock;
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if ($mode eq 'dump') {
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my %items;
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my $totalitems;
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print $sock "stats items\r\n";
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while (<$sock>) {
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last if /^END/;
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if (/^STAT items:(\d*):number (\d*)/) {
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$items{$1} = $2;
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$totalitems += $2;
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}
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}
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print STDERR "Dumping memcache contents\n";
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print STDERR " Number of buckets: " . scalar(keys(%items)) . "\n";
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print STDERR " Number of items : $totalitems\n";
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foreach my $bucket (sort(keys(%items))) {
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print STDERR "Dumping bucket $bucket - " . $items{$bucket} . " total items\n";
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print $sock "stats cachedump $bucket $items{$bucket}\r\n";
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my %keyexp;
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while (<$sock>) {
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last if /^END/;
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# return format looks like this
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# ITEM foo [6 b; 1176415152 s]
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if (/^ITEM (\S+) \[.* (\d+) s\]/) {
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$keyexp{$1} = $2;
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}
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}
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foreach my $k (keys(%keyexp)) {
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print $sock "get $k\r\n";
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my $response = <$sock>;
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if ($response =~ /VALUE (\S+) (\d+) (\d+)/) {
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my $flags = $2;
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my $len = $3;
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my $val;
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read $sock, $val, $len;
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print "add $k $flags $keyexp{$k} $len\r\n$val\r\n";
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# get the END
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$_ = <$sock>;
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$_ = <$sock>;
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}
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}
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}
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exit;
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}
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if ($mode eq 'stats') {
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my %items;
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print $sock "stats\r\n";
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while (<$sock>) {
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last if /^END/;
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chomp;
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if (/^STAT\s+(\S*)\s+(.*)/) {
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$items{$1} = $2;
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}
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}
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printf ("#%-17s %5s %11s\n", $host, "Field", "Value");
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foreach my $name (sort(keys(%items))) {
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printf ("%24s %12s\n", $name, $items{$name});
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}
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exit;
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}
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# display mode:
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my %items; # class -> { number, age, chunk_size, chunks_per_page,
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# total_pages, total_chunks, used_chunks,
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# free_chunks, free_chunks_end }
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print $sock "stats items\r\n";
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while (<$sock>) {
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last if /^END/;
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if (/^STAT items:(\d+):(\w+) (\d+)/) {
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$items{$1}{$2} = $3;
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}
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}
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print $sock "stats slabs\r\n";
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while (<$sock>) {
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last if /^END/;
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if (/^STAT (\d+):(\w+) (\d+)/) {
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$items{$1}{$2} = $3;
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}
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}
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print " # Item_Size Max_age Pages Count Full? Evicted Evict_Time OOM\n";
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foreach my $n (1..40) {
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my $it = $items{$n};
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next if (0 == $it->{total_pages});
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my $size = $it->{chunk_size} < 1024 ?
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"$it->{chunk_size}B" :
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sprintf("%.1fK", $it->{chunk_size} / 1024.0);
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my $full = $it->{free_chunks_end} == 0 ? "yes" : " no";
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printf("%3d %8s %9ds %7d %7d %7s %8d %8d %4d\n",
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$n, $size, $it->{age}, $it->{total_pages},
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$it->{number}, $full, $it->{evicted},
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$it->{evicted_time}, $it->{outofmemory});
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}
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