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pqs: Removed tcpdump-errors, made the library always save the errors in a tempfile

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This commit is contained in:
Brian Fraser
2013-02-25 15:59:01 -03:00
parent 1d9b013bab
commit 4b860cbd7b
5 changed files with 66 additions and 105 deletions
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14
bin/pt-query-digest
View File

@@ -3531,20 +3531,6 @@ $Data::Dumper::Indent = 1;
$Data::Dumper::Sortkeys = 1;
$Data::Dumper::Quotekeys = 0;
require Exporter;
our @ISA = qw(Exporter);
our %EXPORT_TAGS = ();
our @EXPORT = ();
our @EXPORT_OK = qw(
parse_error_packet
parse_ok_packet
parse_ok_prepared_statement_packet
parse_server_handshake_packet
parse_client_handshake_packet
parse_com_packet
parse_flags
);
use constant {
COM_SLEEP => '00',
COM_QUIT => '01',

54
lib/MySQLProtocolParser.pm
View File

@@ -51,19 +51,7 @@ $Data::Dumper::Indent = 1;
$Data::Dumper::Sortkeys = 1;
$Data::Dumper::Quotekeys = 0;
require Exporter;
our @ISA = qw(Exporter);
our %EXPORT_TAGS = ();
our @EXPORT = ();
our @EXPORT_OK = qw(
parse_error_packet
parse_ok_packet
parse_ok_prepared_statement_packet
parse_server_handshake_packet
parse_client_handshake_packet
parse_com_packet
parse_flags
);
use base 'ProtocolParser';
use constant {
COM_SLEEP => '00',
@@ -1526,46 +1514,6 @@ sub remove_mysql_header {
return;
}
sub _get_errors_fh {
my ( $self ) = @_;
my $errors_fh = $self->{errors_fh};
return $errors_fh if $errors_fh;
# Errors file isn't open yet; try to open it.
my $o = $self->{o};
if ( $o && $o->has('tcpdump-errors') && $o->got('tcpdump-errors') ) {
my $errors_file = $o->get('tcpdump-errors');
PTDEBUG && _d('tcpdump-errors file:', $errors_file);
open $errors_fh, '>>', $errors_file
or die "Cannot open tcpdump-errors file $errors_file: $OS_ERROR";
}
$self->{errors_fh} = $errors_fh;
return $errors_fh;
}
sub fail_session {
my ( $self, $session, $reason ) = @_;
PTDEBUG && _d('Client', $session->{client}, 'failed because', $reason);
my $errors_fh = $self->_get_errors_fh();
if ( $errors_fh ) {
my $raw_packets = $session->{raw_packets};
delete $session->{raw_packets}; # Don't dump, it's printed below.
$session->{reason_for_failure} = $reason;
my $session_dump = '# ' . Dumper($session);
chomp $session_dump;
$session_dump =~ s/\n/\n# /g;
print $errors_fh "$session_dump\n";
{
local $LIST_SEPARATOR = "\n";
print $errors_fh "@$raw_packets";
print $errors_fh "\n";
}
}
delete $self->{sessions}->{$session->{client}};
return;
}
# Delete anything we added to the session related to
# buffering a large query received in multiple packets.
sub _delete_buff {

4
lib/PerconaTest.pm
View File

@@ -448,6 +448,7 @@ sub test_protocol_parser {
keys %args;
my $file = "$trunk/$args{file}";
my ($base_file_name) = $args{file} =~ m/([^\/]+)$/;
my @e;
eval {
open my $fh, "<", $file or die "Cannot open $file: $OS_ERROR";
@@ -463,11 +464,10 @@ sub test_protocol_parser {
close $fh;
};
my ($base_file_name) = $args{file} =~ m/([^\/]+)$/;
is(
$EVAL_ERROR,
'',
"$base_file_name: no errors"
"$base_file_name: no perl errors"
);
if ( defined $args{result} ) {

36
lib/ProtocolParser.pm
View File

@@ -27,6 +27,9 @@ use warnings FATAL => 'all';
use English qw(-no_match_vars);
use constant PTDEBUG => $ENV{PTDEBUG} || 0;
use File::Basename qw(basename);
use File::Temp qw(tempfile);
eval {
require IO::Uncompress::Inflate; # yum: perl-IO-Compress-Zlib
IO::Uncompress::Inflate->import(qw(inflate $InflateError));
@@ -245,39 +248,34 @@ sub make_event {
sub _get_errors_fh {
my ( $self ) = @_;
my $errors_fh = $self->{errors_fh};
return $errors_fh if $errors_fh;
return $self->{errors_fh} if $self->{errors_fh};
my $exec = basename($0);
# Errors file isn't open yet; try to open it.
my $o = $self->{o};
if ( $o && $o->has('tcpdump-errors') && $o->got('tcpdump-errors') ) {
my $errors_file = $o->get('tcpdump-errors');
PTDEBUG && _d('tcpdump-errors file:', $errors_file);
open $errors_fh, '>>', $errors_file
or die "Cannot open tcpdump-errors file $errors_file: $OS_ERROR";
}
my ($errors_fh, $filename) = tempfile("/tmp/$exec-errors.XXXXXXX", UNLINK => 0);
$self->{errors_file} = $filename;
$self->{errors_fh} = $errors_fh;
return $errors_fh;
}
sub fail_session {
my ( $self, $session, $reason ) = @_;
PTDEBUG && _d('Failed session', $session->{client}, 'because', $reason);
delete $self->{sessions}->{$session->{client}};
return if $self->{_no_save_error};
my $errors_fh = $self->_get_errors_fh();
if ( $errors_fh ) {
print "Session $session->{client} had errors, will save them in $self->{errors_file}\n";
my $raw_packets = delete $session->{raw_packets};
$session->{reason_for_failure} = $reason;
my $session_dump = '# ' . Dumper($session);
chomp $session_dump;
$session_dump =~ s/\n/\n# /g;
print $errors_fh "$session_dump\n";
{
local $LIST_SEPARATOR = "\n";
print $errors_fh "@{$session->{raw_packets}}";
print $errors_fh "\n";
}
}
PTDEBUG && _d('Failed session', $session->{client}, 'because', $reason);
delete $self->{sessions}->{$session->{client}};
print $errors_fh join("\n", $session_dump, @$raw_packets), "\n";
return;
}

53
t/lib/MySQLProtocolParser.t
View File

@@ -285,16 +285,9 @@ test_protocol_parser(
# #############################################################################
# Check the individual packet parsing subs.
# #############################################################################
MySQLProtocolParser->import(qw(
parse_error_packet
parse_ok_packet
parse_server_handshake_packet
parse_client_handshake_packet
parse_com_packet
));
is_deeply(
parse_error_packet(load_data("t/lib/samples/mysql_proto_001.txt")),
MySQLProtocolParser::parse_error_packet(load_data("t/lib/samples/mysql_proto_001.txt")),
{
errno => '1046',
sqlstate => '#3D000',
@@ -304,7 +297,7 @@ is_deeply(
);
is_deeply(
parse_ok_packet('010002000100'),
MySQLProtocolParser::parse_ok_packet('010002000100'),
{
affected_rows => 1,
insert_id => 0,
@@ -316,7 +309,7 @@ is_deeply(
);
is_deeply(
parse_server_handshake_packet(load_data("t/lib/samples/mysql_proto_002.txt")),
MySQLProtocolParser::parse_server_handshake_packet(load_data("t/lib/samples/mysql_proto_002.txt")),
{
thread_id => '9',
server_version => '5.0.67-0ubuntu6-log',
@@ -345,7 +338,7 @@ is_deeply(
);
is_deeply(
parse_client_handshake_packet(load_data("t/lib/samples/mysql_proto_003.txt")),
MySQLProtocolParser::parse_client_handshake_packet(load_data("t/lib/samples/mysql_proto_003.txt")),
{
db => 'mysql',
user => 'msandbox',
@@ -374,7 +367,7 @@ is_deeply(
);
is_deeply(
parse_com_packet('0373686f77207761726e696e67738d2dacbc', 14),
MySQLProtocolParser::parse_com_packet('0373686f77207761726e696e67738d2dacbc', 14),
{
code => '03',
com => 'COM_QUERY',
@@ -1274,6 +1267,7 @@ test_protocol_parser(
# Issue 761: mk-query-digest --tcpdump does not handle incomplete packets
# #############################################################################
$protocol = new MySQLProtocolParser(server=>'127.0.0.1',port=>'3306');
$protocol->{_no_save_error} = 1;
test_protocol_parser(
parser => $tcpdump,
protocol => $protocol,
@@ -1449,6 +1443,7 @@ test_protocol_parser(
);
$protocol = new MySQLProtocolParser();
$protocol->{_no_save_error} = 1;
test_protocol_parser(
parser => $tcpdump,
protocol => $protocol,
@@ -1528,6 +1523,7 @@ test_protocol_parser(
);
$protocol = new MySQLProtocolParser();
$protocol->{_no_save_error} = 1;
test_protocol_parser(
parser => $tcpdump,
protocol => $protocol,
@@ -1576,6 +1572,7 @@ test_protocol_parser(
# client query
# #############################################################################
$protocol = new MySQLProtocolParser(server => '127.0.0.1',port=>'12345');
$protocol->{_no_save_error} = 1;
$e = test_protocol_parser(
parser => $tcpdump,
protocol => $protocol,
@@ -1595,6 +1592,7 @@ $protocol = new MySQLProtocolParser(
server => '127.0.0.1',
port => '3306',
);
$protocol->{_no_save_error} = 1;
test_protocol_parser(
parser => $tcpdump,
protocol => $protocol,
@@ -1745,6 +1743,37 @@ test_protocol_parser(
],
);
# #############################################################################
# Save errors by default
# #############################################################################
$protocol = new MySQLProtocolParser(server=>'127.0.0.1',port=>'3306');
my $out = output(sub {
open my $fh, "<", "$sample/tcpdump032.txt" or die "Cannot open tcpdump032.txt: $OS_ERROR";
my %parser_args = (
next_event => sub { return <$fh>; },
tell => sub { return tell($fh); },
);
while ( my $p = $tcpdump->parse_event(%parser_args) ) {
$protocol->parse_event(%parser_args, event => $p);
}
close $fh;
});
like(
$out,
qr/had errors, will save them in /,
"Saves errors by default"
);
close $protocol->{errors_fh}; # flush the handle
like(
slurp_file($protocol->{errors_file}),
qr/got server response before full buffer/,
"The right error is saved"
);
# #############################################################################
# Done.
# #############################################################################