1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623
|
#!/usr/bin/perl
use strict;
use warnings;
use Test::More;
use FindBin qw($Bin);
use lib "$Bin/lib";
use MemcachedTest;
use Data::Dumper qw/Dumper/;
my $ext_path;
if (!supports_extstore()) {
plan skip_all => 'extstore not enabled';
exit 0;
}
$ext_path = "/tmp/extstore.$$";
my $server = new_memcached("-m 64 -U 0 -o ext_page_size=8,ext_page_count=8,ext_wbuf_size=2,ext_threads=1,ext_io_depth=2,ext_item_size=512,ext_item_age=2,ext_recache_rate=10000,ext_max_frag=0.9,ext_path=$ext_path,no_lru_crawler,slab_automove=0");
ok($server, "started the server");
# Based almost 100% off testClient.py which is:
# Copyright (c) 2007 Dustin Sallings <dustin@spy.net>
# Command constants
use constant CMD_GET => 0x00;
use constant CMD_SET => 0x01;
use constant CMD_ADD => 0x02;
use constant CMD_REPLACE => 0x03;
use constant CMD_DELETE => 0x04;
use constant CMD_INCR => 0x05;
use constant CMD_DECR => 0x06;
use constant CMD_QUIT => 0x07;
use constant CMD_FLUSH => 0x08;
use constant CMD_GETQ => 0x09;
use constant CMD_NOOP => 0x0A;
use constant CMD_VERSION => 0x0B;
use constant CMD_GETK => 0x0C;
use constant CMD_GETKQ => 0x0D;
use constant CMD_APPEND => 0x0E;
use constant CMD_PREPEND => 0x0F;
use constant CMD_STAT => 0x10;
use constant CMD_SETQ => 0x11;
use constant CMD_ADDQ => 0x12;
use constant CMD_REPLACEQ => 0x13;
use constant CMD_DELETEQ => 0x14;
use constant CMD_INCREMENTQ => 0x15;
use constant CMD_DECREMENTQ => 0x16;
use constant CMD_QUITQ => 0x17;
use constant CMD_FLUSHQ => 0x18;
use constant CMD_APPENDQ => 0x19;
use constant CMD_PREPENDQ => 0x1A;
use constant CMD_TOUCH => 0x1C;
use constant CMD_GAT => 0x1D;
use constant CMD_GATQ => 0x1E;
use constant CMD_GATK => 0x23;
use constant CMD_GATKQ => 0x24;
# REQ and RES formats are divided even though they currently share
# the same format, since they _could_ differ in the future.
use constant REQ_PKT_FMT => "CCnCCnNNNN";
use constant RES_PKT_FMT => "CCnCCnNNNN";
use constant INCRDECR_PKT_FMT => "NNNNN";
use constant MIN_RECV_BYTES => length(pack(RES_PKT_FMT));
use constant REQ_MAGIC => 0x80;
use constant RES_MAGIC => 0x81;
my $mc = MC::Client->new;
my $check = sub {
my ($key, $orig_flags, $orig_val) = @_;
my ($flags, $val, $cas) = $mc->get($key);
is($flags, $orig_flags, "Flags is set properly");
ok($val eq $orig_val || $val == $orig_val, $val . " = " . $orig_val);
};
my $set = sub {
my ($key, $exp, $orig_flags, $orig_value) = @_;
$mc->set($key, $orig_value, $orig_flags, $exp);
$check->($key, $orig_flags, $orig_value);
};
my $empty = sub {
my $key = shift;
my $rv =()= eval { $mc->get($key) };
is($rv, 0, "Didn't get a result from get");
ok($@->not_found, "We got a not found error when we expected one");
};
my $delete = sub {
my ($key, $when) = @_;
$mc->delete($key, $when);
$empty->($key);
};
my $value;
my $bigvalue;
{
my @chars = ("C".."Z");
for (1 .. 20000) {
$value .= $chars[rand @chars];
}
for (1 .. 800000) {
$bigvalue .= $chars[rand @chars];
}
}
# diag "small object";
$set->('x', 10, 19, "somevalue");
# check extstore counters
{
my %stats = $mc->stats('');
is($stats{extstore_objects_written}, 0);
}
# diag "Delete";
#$delete->('x');
# diag "Flush";
#$empty->('y');
# fill some larger objects
{
my $keycount = 1000;
for (1 .. $keycount) {
$set->("nfoo$_", 0, 19, $value);
}
# wait for a flush
sleep 4;
# value returns for one flushed object.
$check->('nfoo1', 19, $value);
# check extstore counters
my %stats = $mc->stats('');
cmp_ok($stats{extstore_page_allocs}, '>', 0, 'at least one page allocated');
cmp_ok($stats{extstore_objects_written}, '>', $keycount / 2, 'some objects written');
cmp_ok($stats{extstore_bytes_written}, '>', length($value) * 2, 'some bytes written');
cmp_ok($stats{get_extstore}, '>', 0, 'one object was fetched');
cmp_ok($stats{extstore_objects_read}, '>', 0, 'one object read');
cmp_ok($stats{extstore_bytes_read}, '>', length($value), 'some bytes read');
# Test multiget
my $rv = $mc->get_multi(qw(nfoo2 nfoo3 noexist));
is($rv->{nfoo2}->[1], $value, 'multiget nfoo2');
is($rv->{nfoo3}->[1], $value, 'multiget nfoo2');
# Remove half of the keys for the next test.
for (1 .. $keycount) {
next unless $_ % 2 == 0;
$delete->("nfoo$_");
}
my %stats2 = $mc->stats('');
cmp_ok($stats{extstore_bytes_used}, '>', $stats2{extstore_bytes_used},
'bytes used dropped after deletions');
cmp_ok($stats{extstore_objects_used}, '>', $stats2{extstore_objects_used},
'objects used dropped after deletions');
is($stats2{badcrc_from_extstore}, 0, 'CRC checks successful');
# delete the rest
for (1 .. $keycount) {
next unless $_ % 2 == 1;
$delete->("nfoo$_");
}
}
# check evictions and misses
{
my $keycount = 1000;
for (1 .. $keycount) {
$set->("mfoo$_", 0, 19, $value);
}
sleep 4;
for ($keycount .. ($keycount*3)) {
$set->("mfoo$_", 0, 19, $value);
}
sleep 4;
$empty->('mfoo1');
my %s = $mc->stats('');
cmp_ok($s{extstore_objects_evicted}, '>', 0);
cmp_ok($s{miss_from_extstore}, '>', 0);
}
# store and re-fetch a chunked value
{
my %stats = $mc->stats('');
$set->("bigvalue", 0, 0, $bigvalue);
sleep 4;
$check->("bigvalue", 0, $bigvalue);
my %stats2 = $mc->stats('');
cmp_ok($stats2{extstore_objects_written}, '>',
$stats{extstore_objects_written}, "a large value flushed");
}
# ensure ASCII can still fetch the chunked value.
{
my $ns = $server->new_sock;
my %s1 = $mc->stats('');
mem_get_is($ns, "bigvalue", $bigvalue);
print $ns "extstore recache_rate 1\r\n";
is(scalar <$ns>, "OK\r\n", "recache rate upped");
for (1..3) {
mem_get_is($ns, "bigvalue", $bigvalue);
$check->('bigvalue', 0, $bigvalue);
}
my %s2 = $mc->stats('');
cmp_ok($s2{recache_from_extstore}, '>', $s1{recache_from_extstore},
'a new recache happened');
}
done_testing();
END {
unlink $ext_path if $ext_path;
}
# ######################################################################
# Test ends around here.
# ######################################################################
package MC::Client;
use strict;
use warnings;
use fields qw(socket);
use IO::Socket::INET;
sub new {
my $self = shift;
my ($s) = @_;
$s = $server unless defined $s;
my $sock = $s->sock;
$self = fields::new($self);
$self->{socket} = $sock;
return $self;
}
sub build_command {
my $self = shift;
die "Not enough args to send_command" unless @_ >= 4;
my ($cmd, $key, $val, $opaque, $extra_header, $cas) = @_;
$extra_header = '' unless defined $extra_header;
my $keylen = length($key);
my $vallen = length($val);
my $extralen = length($extra_header);
my $datatype = 0; # field for future use
my $reserved = 0; # field for future use
my $totallen = $keylen + $vallen + $extralen;
my $ident_hi = 0;
my $ident_lo = 0;
if ($cas) {
$ident_hi = int($cas / 2 ** 32);
$ident_lo = int($cas % 2 ** 32);
}
my $msg = pack(::REQ_PKT_FMT, ::REQ_MAGIC, $cmd, $keylen, $extralen,
$datatype, $reserved, $totallen, $opaque, $ident_hi,
$ident_lo);
my $full_msg = $msg . $extra_header . $key . $val;
return $full_msg;
}
sub send_command {
my $self = shift;
die "Not enough args to send_command" unless @_ >= 4;
my ($cmd, $key, $val, $opaque, $extra_header, $cas) = @_;
my $full_msg = $self->build_command($cmd, $key, $val, $opaque, $extra_header, $cas);
my $sent = $self->{socket}->send($full_msg);
die("Send failed: $!") unless $sent;
if($sent != length($full_msg)) {
die("only sent $sent of " . length($full_msg) . " bytes");
}
}
sub flush_socket {
my $self = shift;
$self->{socket}->flush;
}
# Send a silent command and ensure it doesn't respond.
sub send_silent {
my $self = shift;
die "Not enough args to send_silent" unless @_ >= 4;
my ($cmd, $key, $val, $opaque, $extra_header, $cas) = @_;
$self->send_command($cmd, $key, $val, $opaque, $extra_header, $cas);
$self->send_command(::CMD_NOOP, '', '', $opaque + 1);
my ($ropaque, $data) = $self->_handle_single_response;
Test::More::is($ropaque, $opaque + 1);
}
sub silent_mutation {
my $self = shift;
my ($cmd, $key, $value) = @_;
$empty->($key);
my $extra = pack "NN", 82, 0;
$mc->send_silent($cmd, $key, $value, 7278552, $extra, 0);
$check->($key, 82, $value);
}
sub _handle_single_response {
my $self = shift;
my $myopaque = shift;
my $hdr = "";
while(::MIN_RECV_BYTES - length($hdr) > 0) {
$self->{socket}->recv(my $response, ::MIN_RECV_BYTES - length($hdr));
$hdr .= $response;
}
Test::More::is(length($hdr), ::MIN_RECV_BYTES, "Expected read length");
my ($magic, $cmd, $keylen, $extralen, $datatype, $status, $remaining,
$opaque, $ident_hi, $ident_lo) = unpack(::RES_PKT_FMT, $hdr);
Test::More::is($magic, ::RES_MAGIC, "Got proper response magic");
my $cas = ($ident_hi * 2 ** 32) + $ident_lo;
return ($opaque, '', $cas, 0) if($remaining == 0);
# fetch the value
my $rv="";
while($remaining - length($rv) > 0) {
$self->{socket}->recv(my $buf, $remaining - length($rv));
$rv .= $buf;
}
if(length($rv) != $remaining) {
my $found = length($rv);
die("Expected $remaining bytes, got $found");
}
if (defined $myopaque) {
Test::More::is($opaque, $myopaque, "Expected opaque");
} else {
Test::More::pass("Implicit pass since myopaque is undefined");
}
if ($status) {
die MC::Error->new($status, $rv);
}
return ($opaque, $rv, $cas, $keylen);
}
sub _do_command {
my $self = shift;
die unless @_ >= 3;
my ($cmd, $key, $val, $extra_header, $cas) = @_;
$extra_header = '' unless defined $extra_header;
my $opaque = int(rand(2**32));
$self->send_command($cmd, $key, $val, $opaque, $extra_header, $cas);
my (undef, $rv, $rcas) = $self->_handle_single_response($opaque);
return ($rv, $rcas);
}
sub _incrdecr_header {
my $self = shift;
my ($amt, $init, $exp) = @_;
my $amt_hi = int($amt / 2 ** 32);
my $amt_lo = int($amt % 2 ** 32);
my $init_hi = int($init / 2 ** 32);
my $init_lo = int($init % 2 ** 32);
my $extra_header = pack(::INCRDECR_PKT_FMT, $amt_hi, $amt_lo, $init_hi,
$init_lo, $exp);
return $extra_header;
}
sub _incrdecr_cas {
my $self = shift;
my ($cmd, $key, $amt, $init, $exp) = @_;
my ($data, $rcas) = $self->_do_command($cmd, $key, '',
$self->_incrdecr_header($amt, $init, $exp));
my $header = substr $data, 0, 8, '';
my ($resp_hi, $resp_lo) = unpack "NN", $header;
my $resp = ($resp_hi * 2 ** 32) + $resp_lo;
return $resp, $rcas;
}
sub _incrdecr {
my $self = shift;
my ($v, $c) = $self->_incrdecr_cas(@_);
return $v
}
sub silent_incrdecr {
my $self = shift;
my ($cmd, $key, $amt, $init, $exp) = @_;
my $opaque = 8275753;
$mc->send_silent($cmd, $key, '', $opaque,
$mc->_incrdecr_header($amt, $init, $exp));
}
sub stats {
my $self = shift;
my $key = shift;
my $cas = 0;
my $opaque = int(rand(2**32));
$self->send_command(::CMD_STAT, $key, '', $opaque, '', $cas);
my %rv = ();
my $found_key = '';
my $found_val = '';
do {
my ($op, $data, $cas, $keylen) = $self->_handle_single_response($opaque);
if($keylen > 0) {
$found_key = substr($data, 0, $keylen);
$found_val = substr($data, $keylen);
$rv{$found_key} = $found_val;
} else {
$found_key = '';
}
} while($found_key ne '');
return %rv;
}
sub get {
my $self = shift;
my $key = shift;
my ($rv, $cas) = $self->_do_command(::CMD_GET, $key, '', '');
my $header = substr $rv, 0, 4, '';
my $flags = unpack("N", $header);
return ($flags, $rv, $cas);
}
sub get_multi {
my $self = shift;
my @keys = @_;
for (my $i = 0; $i < @keys; $i++) {
$self->send_command(::CMD_GETQ, $keys[$i], '', $i, '', 0);
}
my $terminal = @keys + 10;
$self->send_command(::CMD_NOOP, '', '', $terminal);
my %return;
while (1) {
my ($opaque, $data) = $self->_handle_single_response;
last if $opaque == $terminal;
my $header = substr $data, 0, 4, '';
my $flags = unpack("N", $header);
$return{$keys[$opaque]} = [$flags, $data];
}
return %return if wantarray;
return \%return;
}
sub touch {
my $self = shift;
my ($key, $expire) = @_;
my $extra_header = pack "N", $expire;
my $cas = 0;
return $self->_do_command(::CMD_TOUCH, $key, '', $extra_header, $cas);
}
sub gat {
my $self = shift;
my $key = shift;
my $expire = shift;
my $extra_header = pack "N", $expire;
my ($rv, $cas) = $self->_do_command(::CMD_GAT, $key, '', $extra_header);
my $header = substr $rv, 0, 4, '';
my $flags = unpack("N", $header);
return ($flags, $rv, $cas);
}
sub version {
my $self = shift;
return $self->_do_command(::CMD_VERSION, '', '');
}
sub flush {
my $self = shift;
return $self->_do_command(::CMD_FLUSH, '', '');
}
sub add {
my $self = shift;
my ($key, $val, $flags, $expire) = @_;
my $extra_header = pack "NN", $flags, $expire;
my $cas = 0;
return $self->_do_command(::CMD_ADD, $key, $val, $extra_header, $cas);
}
sub set {
my $self = shift;
my ($key, $val, $flags, $expire, $cas) = @_;
my $extra_header = pack "NN", $flags, $expire;
return $self->_do_command(::CMD_SET, $key, $val, $extra_header, $cas);
}
sub _append_prepend {
my $self = shift;
my ($cmd, $key, $val, $cas) = @_;
return $self->_do_command($cmd, $key, $val, '', $cas);
}
sub replace {
my $self = shift;
my ($key, $val, $flags, $expire) = @_;
my $extra_header = pack "NN", $flags, $expire;
my $cas = 0;
return $self->_do_command(::CMD_REPLACE, $key, $val, $extra_header, $cas);
}
sub delete {
my $self = shift;
my ($key) = @_;
return $self->_do_command(::CMD_DELETE, $key, '');
}
sub incr {
my $self = shift;
my ($key, $amt, $init, $exp) = @_;
$amt = 1 unless defined $amt;
$init = 0 unless defined $init;
$exp = 0 unless defined $exp;
return $self->_incrdecr(::CMD_INCR, $key, $amt, $init, $exp);
}
sub incr_cas {
my $self = shift;
my ($key, $amt, $init, $exp) = @_;
$amt = 1 unless defined $amt;
$init = 0 unless defined $init;
$exp = 0 unless defined $exp;
return $self->_incrdecr_cas(::CMD_INCR, $key, $amt, $init, $exp);
}
sub decr {
my $self = shift;
my ($key, $amt, $init, $exp) = @_;
$amt = 1 unless defined $amt;
$init = 0 unless defined $init;
$exp = 0 unless defined $exp;
return $self->_incrdecr(::CMD_DECR, $key, $amt, $init, $exp);
}
sub noop {
my $self = shift;
return $self->_do_command(::CMD_NOOP, '', '');
}
package MC::Error;
use strict;
use warnings;
use constant ERR_UNKNOWN_CMD => 0x81;
use constant ERR_NOT_FOUND => 0x1;
use constant ERR_EXISTS => 0x2;
use constant ERR_TOO_BIG => 0x3;
use constant ERR_EINVAL => 0x4;
use constant ERR_NOT_STORED => 0x5;
use constant ERR_DELTA_BADVAL => 0x6;
use overload '""' => sub {
my $self = shift;
return "Memcache Error ($self->[0]): $self->[1]";
};
sub new {
my $class = shift;
my $error = [@_];
my $self = bless $error, (ref $class || $class);
return $self;
}
sub not_found {
my $self = shift;
return $self->[0] == ERR_NOT_FOUND;
}
sub exists {
my $self = shift;
return $self->[0] == ERR_EXISTS;
}
sub too_big {
my $self = shift;
return $self->[0] == ERR_TOO_BIG;
}
sub delta_badval {
my $self = shift;
return $self->[0] == ERR_DELTA_BADVAL;
}
sub einval {
my $self = shift;
return $self->[0] == ERR_EINVAL;
}
# vim: filetype=perl
|