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# Copyright (C) 2008-2010 Sun Microsystems, Inc. All rights reserved.
# Use is subject to license terms.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
# USA
## Hunting for bugs.
##
## Repeated runs of runall with variation of seed and mask values.
##
## There will be a message in case some conditions are fulfilled.
## ==============================================================
## Message about | Fulfilled conditions
## |
## --------------------------------------------------------------------------------------------------
## runall status code | desired_status_codes is defined and we just reached one of them
## --------------------------------------------------------------------------------------------------
## matching output pattern | (expected_outputs is defined and one of the patterns matched)
## | and (desired_status_codes is not defined
## | or desired_status_codes is defined and we just reached one of them)
##
##
## The protocol of some RQG run will be not deleted in case of
## ===========================================================
## runall status code <> 0
## or
## desired_status_codes is not defined, expected_outputs is defined and we just reached one of them
##
## If "--stop_on_match" is set a bughunt terminates in case of
## ===========================================================
## if desired_status_codes is defined and we just reached one of them
## and
## if expected_outputs is defined we found all patterns.
##
## The various options are explained in bughunt_template.cfg.
##
use strict;
use lib 'lib';
use lib '../lib';
use DBI;
use Carp;
use Getopt::Long;
use Data::Dumper;
use File::Copy;
use GenTest;
use GenTest::Constants;
use GenTest::Grammar;
use GenTest::Properties;
use GenTest::Simplifier::Grammar;
use Time::HiRes;
my $options = {};
GetOptions($options,
'config=s',
'grammar=s',
'trials=i',
'initial_seed=i',
'storage_prefix=s',
'expected_outputs=s@',
'desired_status_codes=s@',
'rqg_options=s%',
'basedir=s',
'vardir_prefix=s',
'mysqld=s%',
'stop_on_match!');
my $config = GenTest::Properties->new(
options => $options,
legal => ['desired_status_codes',
'expected_outputs',
'grammar',
'gendata',
'trials',
'initial_seed',
'mask_level',
'initial_mask',
'search_var_size',
'rqg_options',
'basedir',
'vardir_prefix',
'storage_prefix',
'stop_on_match',
'mysqld'],
required=>['rqg_options',
'grammar',
'basedir',
'vardir_prefix',
'storage_prefix'],
defaults => {search_var_size=>10000,
trials=>1}
);
# Dump settings
$config->printProps;
## Calculate mysqld and rqg options
my $mysqlopt = $config->genOpt("--mysqld=--",$config->mysqld)
if defined $config->mysqld;
my $rqgoptions = $config->genOpt('--', 'rqg_options');
# Determine some runtime parameter, check parameters, ....
my $run_id = time();
say("The ID of this run is $run_id.");
if ( ! -d $config->vardir_prefix ) {
croak("vardir_prefix '"
. $config->vardir_prefix .
"' is not an existing directory");
}
my $vardir = $config->vardir_prefix . '/var_' . $run_id;
mkdir ($vardir);
push my @mtr_options, "--vardir=$vardir";
if ( ! -d $config->storage_prefix) {
croak("storage_prefix '"
. $config->storage_prefix .
"' is not an existing directory");
}
my $storage = $config->storage_prefix.'/'.$run_id;
say "Storage is $storage";
mkdir ($storage);
# We must work on a copy of our test grammars because the original grammars could
# be modified during the bughunt or before inspection of the bughunt results.
my $sql_grammar = $storage."/bughunt_sql.yy";
copy($config->grammar, $sql_grammar)
or croak("File " . $config->grammar . " cannot be copied to " . $sql_grammar );
my $data_grammar = "";
if ( defined $config->gendata ) {
$data_grammar = $storage."/bughunt_data.zz";
copy($config->gendata, $data_grammar)
or croak("File " . $config->gendata . " cannot be copied to " . $data_grammar );
$rqgoptions = $rqgoptions . " --gendata=" . $data_grammar;
}
# Some bugs can be investigating using the core file and the server binary.
# Make a copy of the server binary.
# Attention: In the moment we do not use the copy during testing like the grammars.
# FIXME: There is at least one more location where the "mysqld" binary might be stored.
copy($config->basedir.'/sql/mysqld', $storage.'/mysqld');
$rqgoptions = $rqgoptions . " --basedir=" . $config->basedir;
my $good_seed = $config->initial_seed;
my $mask_level = $config->mask_level;
my $good_mask = $config->initial_mask;
my $current_seed;
my $current_mask;
my $current_rqg_log;
my $errfile = $vardir . '/log/master.err';
my $preserve_log;
foreach my $trial (1..$config->trials) {
say("###### run_id = $run_id; trial = $trial ######");
$current_seed = $good_seed - 1 + $trial;
$current_mask = $good_mask - 1 + $trial;
$current_rqg_log = $storage . '/' . $trial . '.log';
$preserve_log = 0;
my $start_time = Time::HiRes::time();
my $runall =
"perl runall.pl ".
" $rqgoptions $mysqlopt ".
"--grammar=".$sql_grammar." ".
"--vardir=$vardir ".
"--mask-level=$mask_level ".
"--mask=$current_mask ".
"--seed=$current_seed >$current_rqg_log 2>&1";
say($runall);
my $runall_status = system($runall);
$runall_status = $runall_status >> 8;
if ($runall_status == STATUS_UNKNOWN_ERROR) {
say("runall_status = $runall_status");
say("Maybe the server startup options are wrong.");
say("Abort");
exit STATUS_UNKNOWN_ERROR;
}
my $end_time = Time::HiRes::time();
my $duration = $end_time - $start_time;
say("runall_status = $runall_status; duration = $duration");
if ($runall_status != 0) {$preserve_log = 1};
if (defined $config->desired_status_codes) {
foreach my $desired_status_code (@{$config->desired_status_codes}) {
if (($runall_status == $desired_status_code) ||
(($runall_status != 0) &&
($desired_status_code == STATUS_ANY_ERROR))) {
say ("###### Found status $runall_status ######");
if (defined $config->expected_outputs) {
checkLogForPattern();
} else {
exit STATUS_OK if $config->stop_on_match;
}
}
}
} elsif (defined $config->expected_outputs) {
checkLogForPattern();
}
# Save storage space by deleting the log of a non important run.
if ($preserve_log == 0) {
unlink($current_rqg_log)
} else {
# Preserve vardir
# Sleep a bit with the intention to avoid that the archiver comes up with a
# warning like "<vardir>/master-data/ib_logfile1: File changed during reading
sleep 5;
my $save_cmd = 'tar czf ' . $storage . '/' . $trial . '.tgz ' . $vardir . ' ' . $current_rqg_log . ' ' . $sql_grammar . ' ' . $data_grammar . ' ' . $storage.'/mysqld' ;
say("save_cmd: ->$save_cmd<-");
my $save_vardir = system($save_cmd);
# FIXME: Abort in case the call to tar fails
}
}
#############################
sub checkLogForPattern {
open (my $my_logfile,'<'.$current_rqg_log)
or croak "unable to open $current_rqg_log : $!";
my @filestats = stat($current_rqg_log);
my $filesize = $filestats[7];
my $offset = $filesize - $config->search_var_size;
## Ensure the offset is not negative
$offset = 0 if $offset < 0;
read($my_logfile, my $rqgtest_output,
$config->search_var_size,
$offset );
close ($my_logfile);
my $match_on_all=1;
foreach my $expected_output (@{$config->expected_outputs}) {
if ($rqgtest_output =~ m{$expected_output}sio) {
say ("###### Found pattern: $expected_output ######");
$preserve_log = 1;
} else {
say ("###### Not found pattern: $expected_output ######");
$match_on_all = 0;
}
}
exit STATUS_OK if $config->stop_on_match and $match_on_all;
}
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