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MDEV-22179 rr(record and replay) support for mtr

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This feature adds the support for rr in mtr. These 2 options are added
--rr         run   the mysqld in rr record mode
--rr_option= run the rr with custom record option, for multiple
             options use --rr_option= for each option.
             For example
              ./mtr main.view --rr_option=-h --rr_option=-u --rr_option=-c=23
--boot-rr    run the mysqld performing bootstrap in rr record mode

Recording are stored in mysql-test/var/rr folder.
To run recording please run
rr replay var/rr/mysql-X

Limitations
Restart will create a new recording.
Repeat will work on same recording , So might be harder to debug.
If test create the multiple instance of mariadb all will be stored in var/rr
This commit is contained in:
Sachin
2020-04-17 16:32:51 +05:30
committed by Sachin
parent e30c4cfc7a
commit 804ed12e0e
1 changed files with 32 additions and 2 deletions
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34
mysql-test/mysql-test-run.pl
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@ -261,8 +261,10 @@ our %gprof_dirs;
our $glob_debugger= 0;
our $opt_gdb;
our $opt_rr;
our $opt_client_gdb;
my $opt_boot_gdb;
my $opt_boot_rr;
our $opt_dbx;
our $opt_client_dbx;
my $opt_boot_dbx;
@ -333,6 +335,7 @@ my $opt_callgrind;
my %mysqld_logs;
my $opt_debug_sync_timeout= 300; # Default timeout for WAIT_FOR actions.
my $warn_seconds = 60;
my @rr_record_args;
sub testcase_timeout ($) {
my ($tinfo)= @_;
@ -1316,10 +1319,13 @@ sub command_line_setup {
'debug-common' => \$opt_debug_common,
'debug-server' => \$opt_debug_server,
'gdb=s' => \$opt_gdb,
'rr' => \$opt_rr,
'rr_option=s' => \@rr_record_args,
'client-gdb' => \$opt_client_gdb,
'manual-gdb' => \$opt_manual_gdb,
'manual-lldb' => \$opt_manual_lldb,
'boot-gdb' => \$opt_boot_gdb,
'boot-rr' => \$opt_boot_rr,
'manual-debug' => \$opt_manual_debug,
'ddd' => \$opt_ddd,
'client-ddd' => \$opt_client_ddd,
@ -1782,8 +1788,8 @@ sub command_line_setup {
# --------------------------------------------------------------------------
# Check debug related options
# --------------------------------------------------------------------------
if ( $opt_gdb || $opt_client_gdb || $opt_ddd || $opt_client_ddd ||
$opt_manual_gdb || $opt_manual_lldb || $opt_manual_ddd ||
if ( $opt_gdb || $opt_client_gdb || $opt_ddd || $opt_client_ddd || $opt_rr ||
@rr_record_args || $opt_manual_gdb || $opt_manual_lldb || $opt_manual_ddd ||
$opt_manual_debug || $opt_dbx || $opt_client_dbx || $opt_manual_dbx ||
$opt_debugger || $opt_client_debugger )
{
@ -2440,6 +2446,7 @@ sub environment_setup {
$ENV{'MYSQL_TEST_DIR'}= $glob_mysql_test_dir;
$ENV{'DEFAULT_MASTER_PORT'}= $mysqld_variables{'port'};
$ENV{'MYSQL_TMP_DIR'}= $opt_tmpdir;
$ENV{'_RR_TRACE_DIR'}= "$opt_vardir/rr";
$ENV{'MYSQLTEST_VARDIR'}= $opt_vardir;
$ENV{'MYSQL_BINDIR'}= $bindir;
$ENV{'MYSQL_SHAREDIR'}= $path_language;
@ -2749,6 +2756,7 @@ sub setup_vardir() {
# Create var/tmp and tmp - they might be different
mkpath("$opt_vardir/tmp");
mkpath($opt_tmpdir) if ($opt_tmpdir ne "$opt_vardir/tmp");
mkpath("$opt_vardir/rr");
# On some operating systems, there is a limit to the length of a
# UNIX domain socket's path far below PATH_MAX.
@ -3398,6 +3406,10 @@ sub mysql_install_db {
ddd_arguments(\$args, \$exe_mysqld_bootstrap, $mysqld->name(),
$bootstrap_sql_file);
}
if ($opt_boot_rr) {
$args= ["record", "$exe_mysqld_bootstrap", @$args];
$exe_mysqld_bootstrap= "rr";
}
my $path_sql= my_find_file($install_basedir,
["mysql", "sql/share", "share/mariadb",
@ -5368,6 +5380,18 @@ sub mysqld_start ($$) {
# Indicate the exe should not be started
$exe= undef;
}
elsif ( $opt_rr || @rr_record_args)
{
if (@rr_record_args)
{
$args= ["record", @rr_record_args, "$exe", @$args];
}
else
{
$args= ["record", "$exe", @$args];
}
$exe= "rr";
}
else
{
# Default to not wait until pid file has been created
@ -6552,6 +6576,12 @@ Options for strace
stracer=<EXE> Specify name and path to the trace program to use.
Default is "strace". Example: $0 --stracer=ktrace.
Options for rr(Record and Replay)
rr Run the "mysqld" executables using rr. Default run
option is "rr record mysqld mysqld_options"
boot-rr Start bootstrap server in rr
rr_option=ARG Option to give rr record, can be specified more then once
Misc options
user=USER User for connecting to mysqld(default: $opt_user)
comment=STR Write STR to the output