~percona-toolkit-dev/percona-toolkit/release-2.2.2

#!/usr/bin/env perl

BEGIN {

   die "The PERCONA_TOOLKIT_BRANCH environment variable is not set.\n"

      unless $ENV{PERCONA_TOOLKIT_BRANCH} && -d $ENV{PERCONA_TOOLKIT_BRANCH};

   unshift @INC, "$ENV{PERCONA_TOOLKIT_BRANCH}/lib";

};

use strict;

use warnings FATAL => 'all';

use English qw(-no_match_vars);

use Test::More;

use Time::HiRes qw(sleep);

use PerconaTest;

use DSNParser;

use Sandbox;

my $dp = new DSNParser(opts=>$dsn_opts);

my $sb = new Sandbox(basedir => '/tmp', DSNParser => $dp);

my $dbh = $sb->get_dbh_for('master');

if ( !$dbh ) {

   plan skip_all => 'Cannot connect to sandbox master';

}

my $cnf      = "/tmp/12345/my.sandbox.cnf";

my $pid_file = "/tmp/pt-stalk.pid.$PID";

my $log_file = "/tmp/pt-stalk.log.$PID";

my $dest     = "/tmp/pt-stalk.collect.$PID";

my $int_file = "/tmp/pt-stalk-after-interval-sleep";

my $pid;

sub cleanup {

   diag(`rm $pid_file $log_file $int_file 2>/dev/null`);

   diag(`rm -rf $dest 2>/dev/null`);

}

sub wait_n_cycles {

   my ($n) = @_;

   PerconaTest::wait_until(

      sub {

         return 0 unless -f "$dest/after_interval_sleep";

         my $n_cycles = `wc -l "$dest/after_interval_sleep"  | awk '{print \$1}'`;

         $n_cycles ||= '';

         chomp($n_cycles);

         return ($n_cycles || 0) >= $n; 

      },

      1.5,

      15

   );

}

# ###########################################################################

# Test that it won't run if can't connect to MySQL.

# ###########################################################################

my $retval = system("$trunk/bin/pt-stalk -- --no-defaults --protocol socket --socket /dev/null  >$log_file 2>&1");

my $output = `cat $log_file`;

like(

   $output,

   qr/Cannot connect to MySQL/,

   "Cannot connect to MySQL"

);

is(

   $retval >> 8,

   1,

   "Exit 1"

);

# ###########################################################################

# Test that it runs and dies normally.

# ###########################################################################

cleanup();

# As of v2.1.9 when --verbose was added, non-matching checks are not

# printed by default.  So we use the --plugin to tell us when the tool

# has completed a cycle.

$retval = system("$trunk/bin/pt-stalk --daemonize --pid $pid_file --log $log_file --dest $dest --plugin $trunk/t/pt-stalk/samples/plugin002.sh -- --defaults-file=$cnf");

is(

   $retval >> 8,

   0,

   "Parent exit 0"

);

PerconaTest::wait_for_files($pid_file, $log_file);

ok(

   -f $pid_file,

   "Creates PID file"

);

ok(

   -f $log_file,

   "Creates log file"

);

sleep 1;

ok(

   -d $dest,

   "Creates --dest (collect) dir"

);

chomp($pid = `cat $pid_file 2>/dev/null`);

$retval = system("kill -0 $pid");

is(

   $retval >> 0,

   0,

   "pt-stalk is running"

);

wait_n_cycles(2);

PerconaTest::kill_program(pid_file => $pid_file);

$output = `cat $log_file 2>/dev/null`;

unlike(

   $output,

   qr/Check results: status\(Threads_running\)=\d+, matched=no, cycles_true=0/,

   "Non-matching results not logged because --verbose=2"

) or diag(`cat $log_file 2>/dev/null`, `cat $dest/*-output 2>/dev/null`);

PerconaTest::wait_until(sub { !-f $pid_file });

ok(

   ! -f $pid_file,

   "Removes PID file"

);

$output = `cat $log_file 2>/dev/null`;

like(

   $output,

   qr/Caught signal, exiting/,

   "Caught signal logged"

) or diag(`cat $log_file 2>/dev/null`, `cat $dest/*-output 2>/dev/null`);

# #############################################################################

# --verbose 3 (non-matching results)

# #############################################################################

cleanup();

$retval = system("$trunk/bin/pt-stalk --daemonize --pid $pid_file --log $log_file --variable Threads_running --dest $dest --verbose 3 -- --defaults-file=$cnf");

PerconaTest::wait_for_files($pid_file, $log_file);

PerconaTest::wait_for_sh("grep -q 'Check results' $log_file >/dev/null");

PerconaTest::kill_program(pid_file => $pid_file);

$output = `cat $log_file 2>/dev/null`;

like(

   $output,

   qr/Check results: status\(Threads_running\)=\d+, matched=no, cycles_true=0/,

   "Matching results logged with --verbose 3"

) or diag(`cat $dest/*-output 2>/dev/null`);

# #############################################################################

# --verbose 1 (just errors and warnings)

# #############################################################################

cleanup();

$retval = system("$trunk/bin/pt-stalk --daemonize --pid $pid_file --log $log_file --dest $dest --verbose 1 --plugin $trunk/t/pt-stalk/samples/plugin002.sh -- --defaults-file=$cnf");

PerconaTest::wait_for_files($pid_file, $log_file);

wait_n_cycles(2);

PerconaTest::kill_program(pid_file => $pid_file);

$output = `cat $log_file 2>/dev/null`;

like(

   $output,

   qr/Caught signal, exiting/,

   "Warning logged (--verbose 1)"

);

unlike(

   $output,

   qr/Start|Collect|Check/i,

   "No run info log (--verbose 1)"

);

# ###########################################################################

# Test collect.

# ###########################################################################

cleanup();

# We'll have to watch Uptime since it's the only status var that's going

# to be predictable.

my (undef, $uptime) = $dbh->selectrow_array("SHOW STATUS LIKE 'Uptime'");

my $threshold = $uptime + 2;

$retval = system("$trunk/bin/pt-stalk --iterations 1 --dest $dest --variable Uptime --threshold $threshold --cycles 2 --run-time 2 --pid $pid_file -- --defaults-file=$cnf >$log_file 2>&1");

PerconaTest::wait_until(sub { !-f $pid_file });

$output = `cat $dest/*-trigger 2>/dev/null`;

like(

   $output,

   qr/Check results: status\(Uptime\)=\d+, matched=yes, cycles_true=2/,

   "Collect triggered"

)

or diag(

   'output',    $output,

   'log file',  `cat $log_file 2>/dev/null`,

   'collector', `cat $dest/*-output 2>/dev/null`,

   'dest',      `ls -l $dest/ 2>/dev/null`,

   'df',        `cat $dest/*-df 2>/dev/null`,

);

# There is some nondeterminism here. Sometimes it'll run for 2 samples because

# the samples may not be precisely 1 second apart.

chomp($output = `cat $dest/*-df 2>/dev/null | grep -c '^TS'`);

ok(

   $output >= 1 && $output <= 3,

   "Collect ran for --run-time"

)

or diag(

   'output',    $output,

   'log file',  `cat $log_file 2>/dev/null`,

   'collector', `cat $dest/*-output 2>/dev/null`,

   'dest',      `ls -l $dest/ 2>/dev/null`,

   'df',        `cat $dest/*-df 2>/dev/null`,

);

ok(

   PerconaTest::not_running("pt-stalk --iterations 1"),

   "pt-stalk is not running"

);

$output = `cat $dest/*-trigger 2>/dev/null`;

like(

   $output,

   qr/pt-stalk ran with --function=status --variable=Uptime --threshold=$threshold/,

   "Trigger file logs how pt-stalk was ran"

);

chomp($output = `cat $log_file 2>/dev/null | grep 'Collect [0-9] PID'`);

like(

   $output,

   qr/Collect 1 PID \d+/,

   "Collector PID logged"

)

or diag(

   'output',    $output,

   'log file',  `cat $log_file 2>/dev/null`,

   'collector', `cat $dest/*-output 2>/dev/null`,

);

# ###########################################################################

# Triggered but --no-collect.

# ###########################################################################

cleanup();

(undef, $uptime) = $dbh->selectrow_array("SHOW STATUS LIKE 'Uptime'");

$threshold = $uptime + 2;

$retval = system("$trunk/bin/pt-stalk --no-collect --iterations 1 --dest $dest  --variable Uptime --threshold $threshold --cycles 1 --run-time 1 --pid $pid_file -- --defaults-file=$cnf >$log_file 2>&1");

PerconaTest::wait_until(sub { !-f $pid_file });

$output = `cat $log_file 2>/dev/null`;

like(

   $output,

   qr/Collect 1 triggered/,

   "Collect triggered"

);

ok(

   ! -f "$dest/*",

   "No files collected"

) or diag(`ls -l $dest/ 2>/dev/null`);

ok(

   PerconaTest::not_running("pt-stalk --no-collect"),

   "pt-stalk is not running"

);

# #############################################################################

# --config

# #############################################################################

cleanup();

diag(`cp $ENV{HOME}/.pt-stalk.conf $ENV{HOME}/.pt-stalk.conf.original 2>/dev/null`);

diag(`cp $trunk/t/pt-stalk/samples/config001.conf $ENV{HOME}/.pt-stalk.conf`);

system "$trunk/bin/pt-stalk --dest $dest --pid $pid_file >$log_file 2>&1 &";

PerconaTest::wait_for_files($pid_file);

sleep 1;

chomp($pid = `cat $pid_file`);

$retval = system("kill $pid 2>/dev/null");

is(

   $retval >> 0,

   0,

   "Killed pt-stalk"

);

$output = `cat $log_file 2>/dev/null`;

like(

   $output,

   qr/Check results: status\(Aborted_connects\)=|variable=Aborted_connects/,

   "Read default config file"

);

diag(`rm $ENV{HOME}/.pt-stalk.conf`);

diag(`cp $ENV{HOME}/.pt-stalk.conf.original $ENV{HOME}/.pt-stalk.conf 2>/dev/null`);

# #############################################################################

# Don't stalk, just collect.

# #############################################################################

cleanup();

# As of 2.2, --no-stalk means just that: don't stalk, just collect, so

# we have to specify --iterations=1 else the tool will continue to run,

# whereas in 2.1 --no-stalk implied/forced "collect once and exit".

$retval = system("$trunk/bin/pt-stalk --no-stalk --run-time 2 --dest $dest --prefix nostalk --pid $pid_file --iterations 1 -- --defaults-file=$cnf >$log_file 2>&1");

PerconaTest::wait_until(sub { !-f $pid_file });

$output = `cat $dest/nostalk-trigger 2>/dev/null`;

like(

   $output,

   qr/Not stalking/,

   "Not stalking, collect triggered"

)

or diag(

   'dest',      `ls -l $dest/ 2>/dev/null`,

   'log_file',  `cat $log_file 2>/dev/null`,

   'collector', `cat $dest/*-output 2>/dev/null`,

);

chomp($output = `grep -c '^TS' $dest/nostalk-df 2>/dev/null`);

is(

   $output,

   2,

   "Not stalking, collect ran for --run-time"

)

or diag(

   'dest',      `ls -l $dest/ 2>/dev/null`,

   'log_file',  `cat $log_file 2>/dev/null`,

   'collector', `cat $dest/*-output 2>/dev/null`,

);

my $vmstat = `which vmstat 2>/dev/null`;

SKIP: {

   skip "vmstat is not installed", 1 unless $vmstat;

   chomp(my $n=`awk '/[ ]*[0-9]/ { n += 1 } END { print n }' "$dest/nostalk-vmstat"`);

   is(

      $n,

      "2",

      "vmstat ran for --run-time seconds (bug 955860)"

   );

};

is(

   `cat $dest/nostalk-hostname 2>/dev/null`,

   `hostname`,

   "Not stalking, collect gathered data"

)

or diag(

   'dest',      `ls -l $dest/ 2>/dev/null`,

   'log_file',  `cat $log_file 2>/dev/null`,

   'collector', `cat $dest/*-output 2>/dev/null`,

);

ok(

   PerconaTest::not_running("pt-stalk --no-stalk"),

   "Not stalking, pt-stalk is not running"

)

or diag(

   'dest',      `ls -l $dest/ 2>/dev/null`,

   'log_file',  `cat $log_file 2>/dev/null`,

   'collector', `cat $dest/*-output 2>/dev/null`,

);

# ############################################################################

# bad "find" usage in purge_samples gives 

# https://bugs.launchpad.net/percona-toolkit/+bug/942114

# ############################################################################

use File::Temp qw( tempdir );

my $tempdir = tempdir( CLEANUP => 1 );

my $script = <<"EOT";

. $trunk/bin/pt-stalk

purge_samples $tempdir 10000 2>&1

EOT

$output = `$script`;

unlike(

   $output,

   qr/\Qfind: warning: you have specified the -depth option/,

   "Bug 942114: no bad find usage"

);

# #############################################################################

# Done.

# #############################################################################

cleanup();

diag(`rm -rf $dest 2>/dev/null`);

ok($sb->ok(), "Sandbox servers") or BAIL_OUT(__FILE__ . " broke the sandbox");

done_testing;