My PHP application dies with fastcgi: unexpected end-of-file - php

Question

I updated to PHP 7 at my localhost, but since then anytime i want to redirect from one page to another in my nette application, I'll receive error: 500 - Internal Server Error.
I was searching through stack overflow and found a problem that is quite similar to mine here: How to solve "mod_fastcgi.c.2566 unexpected end-of-file (perhaps the fastcgi process died)" when calling .php that takes long time to execute? . However, I don't work with large files and my connection dies immediately.
My /var/log/lighttpd/error.log
2016-03-06 10:54:11: (server.c.1456) [note] graceful shutdown started
2016-03-06 10:54:11: (server.c.1572) server stopped by UID = 0 PID = 351
2016-03-06 11:03:48: (log.c.194) server started
2016-03-06 11:07:17: (mod_fastcgi.c.2390) unexpected end-of-file (perhaps the fastcgi process died): pid: 21725 socket: unix:/run/lighttpd/php-fastcgi.sock-3
2016-03-06 11:07:17: (mod_fastcgi.c.3171) response not received, request sent: 1029 on socket: unix:/run/lighttpd/php-fastcgi.sock-3 for /~rost/lp/web/www/index.php?, closing connection
2016-03-06 11:09:01: (mod_fastcgi.c.2390) unexpected end-of-file (perhaps the fastcgi process died): pid: 21725 socket: unix:/run/lighttpd/php-fastcgi.sock-3
2016-03-06 11:09:01: (mod_fastcgi.c.3171) response not received, request sent: 1061 on socket: unix:/run/lighttpd/php-fastcgi.sock-3 for /~rost/lp/web/www/index.php?action=list&presenter=Campaign, closing connection
2016-03-06 11:09:06: (mod_fastcgi.c.2390) unexpected end-of-file (perhaps the fastcgi process died): pid: 21725 socket: unix:/run/lighttpd/php-fastcgi.sock-3
2016-03-06 11:09:06: (mod_fastcgi.c.3171) response not received, request sent: 942 on socket: unix:/run/lighttpd/php-fastcgi.sock-3 for /~rost/lp/web/www/index.php?, closing connection
2016-03-06 11:09:14: (mod_fastcgi.c.2390) unexpected end-of-file (perhaps the fastcgi process died): pid: 21725 socket: unix:/run/lighttpd/php-fastcgi.sock-3
2016-03-06 11:09:14: (mod_fastcgi.c.3171) response not received, request sent: 1051 on socket: unix:/run/lighttpd/php-fastcgi.sock-3 for /~rost/lp/web/www/index.php?action=out&presenter=Sign, closing connection
My /etc/lighttpd/lighttpd.conf
server.modules = ( "mod_userdir",
"mod_access",
"mod_accesslog",
"mod_fastcgi",
"mod_rewrite",
"mod_auth"
)
server.port = 80
server.username = "http"
server.groupname = "http"
server.document-root = "/srv/http"
server.errorlog = "/var/log/lighttpd/error.log"
dir-listing.activate = "enable"
index-file.names = ( "index.html" )
# Rewrite URL without dots to index.php
#url.rewrite-once = ( "/^[^.?]*$/" => "/index.php" )
mimetype.assign = ( ".html" => "text/html",
".htm" => "text/html",
".txt" => "text/plain",
".properties" => "text/plain",
".jpg" => "image/jpeg",
".png" => "image/png",
".svg" => "image/svg+xml",
".gif" => "image/gif",
".css" => "text/css",
".js" => "application/x-javascript",
"" => "application/octet-stream"
)
userdir.path = "public_html"
# Fast CGI
include "conf.d/fastcgi.conf"
My /etc/lighttpd/conf.d/fastcgi.conf
server.modules += ( "mod_fastcgi" )
#server.indexfiles += ( "index.php" ) #this is deprecated
index-file.names += ( "index.php" )
fastcgi.server = (
".php" => (
"localhost" => (
"bin-path" => "/usr/bin/php-cgi",
"socket" => "/run/lighttpd/php-fastcgi.sock",
"max-procs" => 4, # default value
"bin-environment" => (
"PHP_FCGI_CHILDREN" => "1", # default value
),
"broken-scriptfilename" => "enable"
))
)
Variables from /etc/php/php.ini
cat /etc/php/php.ini | grep max_execution_time
max_execution_time = 30
cat /etc/php/php.ini | grep default_socket_timeout
default_socket_timeout = 60
Update 7.3.2016
I switched from php fast cgi to php-fpm and interesting thing is that problem prevails, but is less often. Sometimes the redirect jump to 500 and sometimes not. And error log again:
2016-03-07 22:23:32: (mod_fastcgi.c.2390) unexpected end-of-file (perhaps the fastcgi process died): pid: 0 socket: unix:/run/php-fpm/php-fpm.sock
2016-03-07 22:23:32: (mod_fastcgi.c.3171) response not received, request sent: 1084 on socket: unix:/run/php-fpm/php-fpm.sock for /~rost/lp/web/www/index.php?action=out&presenter=Sign, closing connection

Answer 1

Also, try to delete Nette cache first.

Answer 2

I've finally found a solution. It is probably Nette / Cassandra related problem.
The error was appearing because of object Nette\Security\Identity, after I assigned user data into it:
public function authenticate(array $credentials) {
// Retrieve username and password
list($email, $passwd) = $credentials;
// Select user with given email from database
$usr = $this->daoManager->getDao("AppUser")->loadByEmail($email);
if ($usr == null || count($usr) == 0) {
$msg = 'The email is incorrect.';
$arg = self::IDENTITY_NOT_FOUND;
throw new Nette\Security\AuthenticationException($msg, $arg);
}
// TODO Check user password
// TODO Check verification
// Create identity - THE PROBLEM WAS HERE
return new Identity($email, $usr['role'], $usr);
}
It was caused by value 'registered' in $usr array which was of type Cassandra\Timestamp. Since then almost every redirect crashed with above mentioned error.
Following code fixed the issue:
return new Identity($email, $usr['role'], $this->fixUserArray($usr));
Where:
protected function fixUserArray(array $user) {
$result = array();
foreach ($user as $key => $val) {
if ($key === "registered") {
$result[$key] = $val->time();
} else {
$result[$key] = $val;
}
}
return $result;
}