I just installed a new instance of RT (4.2.1). I’ve been using RT for
quite a long time now, through a lot of different versions, but this is a
new issue for me.
Everything starts up fine, but after about 10 minutes or so, it loses
connection to MySQL. It can only be recovered by resarting the web server.
It’s not limited to any particular functionality - I can be doing anything
and the next click will serve up the issue.
It’s always the same error in the logs, no matter what I was doing in the
web interface when it occurred:
[6876] [Thu Nov 21 23:12:06 2013] [warning]: DBI
connect(‘dbname=rt4;host=localhost;port=3306’,‘rt_user’,…) failed: Can’t
connect to local MySQL server through socket ‘’ (2) at
/usr/local/share/perl5/DBIx/SearchBuilder/Handle.pm line 105.
(/usr/local/share/perl5/Carp.pm:168)
The socket is at /var/lib/mysql/mysql.sock.
Below is a really long stack trace from the web interface that may or may
not be useful. I’ve tried setting MYSQL_UNIX_PORT in RT_SiteConfig.pm,
moving it to /tmp, etc… but it just seems to transition from working fine
to broken for no apparent reason.
Thanks!
Jay
Error trace
Connect Failed Can’t connect to local MySQL server through socket ‘’ (2)
at /var/opt/rt-4.2.1/sbin/…/lib/RT.pm line 210.
at /usr/local/share/perl5/Carp.pm line 166
- in Carp::croak at /usr/local/share/perl5/Carp.pm line 166
163: shortmess_heavy(@_);
164: }
165: * 166: sub croak { die shortmess @_ }
- 167: sub confess { die longmess @_ }
168: sub carp { warn shortmess @_ }
169: sub cluck { warn longmess @_ }
Show function arguments
2. in DBIx::SearchBuilder::Handle::Connect at
/usr/local/share/perl5/DBIx/SearchBuilder/Handle.pm line 105
102: # Only connect if we're not connected to this source already
103: return undef if $self->dbh && $self->dbh->ping &&
$new_dsn eq $old_dsn;
104: * 105: my $handle = DBI->connect(
- 106: $new_dsn, $args{‘User’}, $args{‘Password’}
107: ) or croak “Connect Failed $DBI::errstr\n”;
108:
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3. in RT::Handle::Connect at /var/opt/rt-4.2.1/sbin/…/lib/RT/Handle.pm
line 124
121: }
122:
123: $self->SUPER::Connect(* 124: User =>
RT->Config->Get(‘DatabaseUser’),
- 125: Password => RT->Config->Get(‘DatabasePassword’),
126: DisconnectHandleOnDestroy => 1,
127: %args,
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4. in RT::ConnectToDatabase at /var/opt/rt-4.2.1/sbin/…/lib/RT.pm line
210
207: sub ConnectToDatabase {
208: require RT::Handle;
209: $Handle = RT::Handle->new unless $Handle;* 210:
$Handle->Connect;
- 211: return $Handle;
212: }
213:
- in RT::Interface::Web::Handler::ANON at
/var/opt/rt-4.2.1/sbin/…/lib/RT/Interface/Web/Handler.pm line 278
275: return $self->_psgi_response_cb( $res->finalize ) if $res;
276: }
277: * 278: RT::ConnectToDatabase() unless RT->InstallMode;
- 279:
280: my $req = Plack::Request->new($env);
281:
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6. in Plack::Middleware::Static::call at
/usr/local/share/perl5/Plack/Middleware/Static.pm line 18
15: return $res;
16: }
17: * 18: return $self->app->($env);
- 19: }
20:
21: sub _handle_static {
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7. in Plack::Component::ANON at
/usr/local/share/perl5/Plack/Component.pm line 50
47: sub to_app {
48: my $self = shift;
49: $self->prepare_app;* 50: return sub { $self->call(@_) };
- 51: }
52:
53:
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8. in Plack::Middleware::Static::call at
/usr/local/share/perl5/Plack/Middleware/Static.pm line 18
15: return $res;
16: }
17: * 18: return $self->app->($env);
- 19: }
20:
21: sub _handle_static {
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9. in Plack::Component::ANON at
/usr/local/share/perl5/Plack/Component.pm line 50
47: sub to_app {
48: my $self = shift;
49: $self->prepare_app;* 50: return sub { $self->call(@_) };
- 51: }
52:
53:
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10. in Plack::Middleware::Lint::call at
/usr/local/share/perl5/Plack/Middleware/Lint.pm line 24
21: my $env = shift;
22:
23: $self->validate_env($env);* 24: my $res =
$self->app->($env);
- 25: return $self->validate_res($res);
26: }
27:
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11. in Plack::Middleware::StackTrace::ANON at
/usr/local/share/perl5/Plack/Component.pm line 50
47: sub to_app {
48: my $self = shift;
49: $self->prepare_app;* 50: return sub { $self->call(@_) };
- 51: }
52:
53:
- in (eval) at /usr/local/share/perl5/Try/Tiny.pm line 78
75: $@ = $prev_error;
76:
77: # evaluate the try block in the correct context* 78:
if ( $wantarray ) {
- 79: @ret = $try->();
80: } elsif ( defined $wantarray ) {
81: $ret[0] = $try->();
- in Plack::Middleware::StackTrace::call at
/usr/local/share/perl5/Try/Tiny.pm line 74
71:
72: # failed will be true if the eval dies, because 1 will not
be returned
73: # from the eval body* 74: my $failed = not eval {
- 75: $@ = $prev_error;
76:
77: # evaluate the try block in the correct context
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14. in Plack::Component::ANON at
/usr/local/share/perl5/Plack/Component.pm line 50
47: sub to_app {
48: my $self = shift;
49: $self->prepare_app;* 50: return sub { $self->call(@_) };
- 51: }
52:
53:
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15. in Plack::Middleware::AccessLog::call at
/usr/local/share/perl5/Plack/Middleware/AccessLog.pm line 24
21: my $self = shift;
22: my($env) = @_;
23: * 24: my $res = $self->app->($env);
- 25:
26: if ( ref($res) && ref($res) eq ‘ARRAY’ ) {
27: my $content_length = Plack::Util::content_length($res->[2]);
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16. in Plack::Component::ANON at
/usr/local/share/perl5/Plack/Component.pm line 50
47: sub to_app {
48: my $self = shift;
49: $self->prepare_app;* 50: return sub { $self->call(@_) };
- 51: }
52:
53:
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17. in (eval) at /usr/local/share/perl5/Plack/Util.pm line 142
139: sub run_app($$) {
140: my($app, $env) = @_;
141: * 142: return eval { $app->($env) } || do {
- 143: my $body = “Internal Server Error”;
144: $env->{‘psgi.errors’}->print($@);
145: [ 500, [ ‘Content-Type’ => ‘text/plain’,
‘Content-Length’ => length($body) ], [ $body ] ];
- in Plack::Util::run_app at /usr/local/share/perl5/Plack/Util.pm line
142
139: sub run_app($$) {
140: my($app, $env) = @_;
141: * 142: return eval { $app->($env) } || do {
- 143: my $body = “Internal Server Error”;
144: $env->{‘psgi.errors’}->print($@);
145: [ 500, [ ‘Content-Type’ => ‘text/plain’,
‘Content-Length’ => length($body) ], [ $body ] ];
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19. in Plack::Handler::FCGI::run at
/usr/local/share/perl5/Plack/Handler/FCGI.pm line 134
131: $env->{HTTP_AUTHORIZATION} = $HTTP_AUTHORIZATION;
132: }
133: * 134: my $res = Plack::Util::run_app $app, $env;
- 135:
136: if (ref $res eq ‘ARRAY’) {
137: $self->_handle_response($res);
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20. in Plack::Loader::run at /usr/local/share/perl5/Plack/Loader.pm line
84
81:
82: sub run {
83: my($self, $server, $builder) = @_;* 84:
$server->run($self->{app});
- 85: }
86:
87: 1;
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21. in Plack:
:run at /usr/local/share/perl5/Plack/Runner.pm line
277
274: $loader->preload_app($app);
275:
276: my $server = $self->load_server($loader);* 277:
$loader->run($server);
- 278: }
279:
280: 1;
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22. at /usr/local/bin/plackup line 10
7:
8: my $runner = Plack::Runner->new;
9: $runner->parse_options(@ARGV);* 10: $runner->run;
- 11:
12: END
13:
