found a shorter log file, probably with more relevant information
[Sun Dec 13 06:25:07 2015] [warn] RSA server certificate is a CA certificate (BasicConstraints: CA == TRUE !?)
[Sun Dec 13 06:25:07 2015] [notice] Apache/2.2.22 (Debian) PHP/5.4.45-0+deb7u2 mod_ssl/2.2.22 OpenSSL/1.0.1e configured -- resuming normal operations
[Sun Dec 13 07:08:27 2015] [error] [client 73.174.60.201] script '/var/www/status.php' not found or unable to stat
[Sun Dec 13 07:08:32 2015] [error] [client 73.174.60.201] script '/var/www/status.php' not found or unable to stat
[Sun Dec 13 07:09:23 2015] [error] [client 73.174.60.201] script '/var/www/status.php' not found or unable to stat
[Sun Dec 13 07:09:51 2015] [error] [client 73.174.60.201] script '/var/www/status.php' not found or unable to stat
[Sun Dec 13 07:10:04 2015] [error] [client 73.174.60.201] script '/var/www/status.php' not found or unable to stat
[Sun Dec 13 07:10:05 2015] [error] [client 73.174.60.201] script '/var/www/status.php' not found or unable to stat
[Sun Dec 13 07:10:06 2015] [error] [client 73.174.60.201] script '/var/www/status.php' not found or unable to stat
[Sun Dec 13 07:10:06 2015] [error] [client 73.174.60.201] script '/var/www/status.php' not found or unable to stat
[Sun Dec 13 07:10:19 2015] [error] [client 70.198.195.33] script '/var/www/status.php' not found or unable to stat
[Sun Dec 13 07:10:34 2015] [error] [client 70.198.195.33] script '/var/www/status.php' not found or unable to stat
[Sun Dec 13 07:26:14 2015] [error] [client 73.174.60.201] PHP Fatal error: Uncaught exception 'PDOException' with message 'SQLSTATE[HY000]: General error: 2006 MySQL server has gone away' in /var/www/owncloud/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOConnection.php:104\nStack trace:\n#0 /var/www/owncloud/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOConnection.php(104): PDO->query('SHOW FULL TABLE...')\n#1 /var/www/owncloud/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(833): Doctrine\DBAL\Driver\PDOConnection->query('SHOW FULL TABLE...')\n#2 /var/www/owncloud/lib/private/db/connection.php(182): Doctrine\DBAL\Connection->executeQuery('SHOW FULL TABLE...', Array, Array, NULL)\n#3 /var/www/owncloud/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(766): OC\DB\Connection->executeQuery('SHOW FULL TABLE...', Array, Array)\n#4 /var/www/owncloud/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/Schema/AbstractSchemaManager.php(219): Doctrine\DBAL\Connection->fetchAll('SHOW FULL TABLE...')\n#5 /var/www/owncloud/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/Schema/AbstractSchemaManag in /var/www/owncloud/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/Driver/AbstractMySQLDriver.php on line 115
[Sun Dec 13 07:28:24 2015] [error] [client 73.174.60.201] File does not exist: /var/www/favicon.ico, referer: http://73.174.60.201/owncloud/index.php
[Sun Dec 13 07:29:53 2015] [notice] caught SIGTERM, shutting down
[Sun Dec 13 07:29:54 2015] [warn] RSA server certificate is a CA certificate (BasicConstraints: CA == TRUE !?)
[Sun Dec 13 07:29:55 2015] [warn] RSA server certificate is a CA certificate (BasicConstraints: CA == TRUE !?)
[Sun Dec 13 07:29:55 2015] [notice] Apache/2.2.22 (Debian) PHP/5.4.45-0+deb7u2 mod_ssl/2.2.22 OpenSSL/1.0.1e configured -- resuming normal operations
[Sun Dec 13 07:32:32 2015] [notice] caught SIGTERM, shutting down
[Sun Dec 13 07:32:44 2015] [warn] RSA server certificate is a CA certificate (BasicConstraints: CA == TRUE !?)
[Sun Dec 13 07:32:45 2015] [warn] RSA server certificate is a CA certificate (BasicConstraints: CA == TRUE !?)
[Sun Dec 13 07:32:45 2015] [notice] Apache/2.2.22 (Debian) PHP/5.4.45-0+deb7u2 mod_ssl/2.2.22 OpenSSL/1.0.1e configured -- resuming normal operations
[Sun Dec 13 07:41:53 2015] [notice] caught SIGTERM, shutting down
[Sun Dec 13 07:41:54 2015] [warn] RSA server certificate is a CA certificate (BasicConstraints: CA == TRUE !?)
[Sun Dec 13 07:41:54 2015] [warn] RSA server certificate is a CA certificate (BasicConstraints: CA == TRUE !?)
[Sun Dec 13 07:41:54 2015] [notice] Apache/2.2.22 (Debian) PHP/5.4.45-0+deb7u2 mod_ssl/2.2.22 OpenSSL/1.0.1e configured -- resuming normal operations
[Sun Dec 13 07:42:12 2015] [notice] caught SIGTERM, shutting down
[Sun Dec 13 07:44:30 2015] [warn] RSA server certificate is a CA certificate (BasicConstraints: CA == TRUE !?)
[Sun Dec 13 07:44:30 2015] [warn] RSA server certificate is a CA certificate (BasicConstraints: CA == TRUE !?)
[Sun Dec 13 07:44:30 2015] [notice] Apache/2.2.22 (Debian) PHP/5.4.45-0+deb7u2 mod_ssl/2.2.22 OpenSSL/1.0.1e configured -- resuming normal operations
[Sun Dec 13 11:09:47 2015] [error] [client 190.214.21.185] File does not exist: /var/www/phpMyAdmin
[Sun Dec 13 11:09:50 2015] [error] [client 190.214.21.185] File does not exist: /var/www/pma
[Sun Dec 13 11:09:54 2015] [error] [client 190.214.21.185] File does not exist: /var/www/myadmin
[Sun Dec 13 13:18:33 2015] [error] [client 188.68.224.62] script '/var/www/httptest.php' not found or unable to stat
[Sun Dec 13 13:26:22 2015] [error] [client 188.68.224.62] script '/var/www/httptest.php' not found or unable to stat
[Sun Dec 13 13:36:01 2015] [error] [client 188.68.224.62] script '/var/www/httptest.php' not found or unable to stat
[Sun Dec 13 13:36:06 2015] [error] [client 188.68.224.62] script '/var/www/httptest.php' not found or unable to stat
[Sun Dec 13 15:12:55 2015] [error] [client 188.68.224.62] script '/var/www/httptest.php' not found or unable to stat
[Sun Dec 13 15:49:16 2015] [error] [client 188.68.224.62] script '/var/www/httptest.php' not found or unable to stat
[Sun Dec 13 19:43:34 2015] [error] [client 188.68.224.62] script '/var/www/httptest.php' not found or unable to stat
[Sun Dec 13 19:58:25 2015] [error] [client 208.52.161.177] File does not exist: /var/www/myadmin
[Sun Dec 13 20:30:38 2015] [error] [client 141.212.122.97] client sent HTTP/1.1 request without hostname (see RFC2616 section 14.23): /x
[Sun Dec 13 21:36:11 2015] [error] [client 188.68.224.62] script '/var/www/httptest.php' not found or unable to stat
[Mon Dec 14 00:13:34 2015] [error] [client 188.68.224.62] script '/var/www/httptest.php' not found or unable to stat
[Mon Dec 14 01:30:51 2015] [error] [client 188.68.224.62] script '/var/www/httptest.php' not found or unable to stat
[Mon Dec 14 01:31:23 2015] [error] [client 188.68.224.62] script '/var/www/httptest.php' not found or unable to stat
[Mon Dec 14 01:31:26 2015] [error] [client 188.68.224.62] script '/var/www/httptest.php' not found or unable to stat
[Mon Dec 14 01:32:28 2015] [notice] caught SIGTERM, shutting down
[Mon Dec 14 01:32:39 2015] [warn] RSA server certificate is a CA certificate (BasicConstraints: CA == TRUE !?)
[Mon Dec 14 01:32:40 2015] [warn] RSA server certificate is a CA certificate (BasicConstraints: CA == TRUE !?)
[Mon Dec 14 01:32:40 2015] [notice] Apache/2.2.22 (Debian) PHP/5.4.45-0+deb7u2 mod_ssl/2.2.22 OpenSSL/1.0.1e configured -- resuming normal operations
[Mon Dec 14 02:21:18 2015] [error] [client 188.68.224.62] script '/var/www/httptest.php' not found or unable to stat
[Mon Dec 14 05:18:02 2015] [error] [client 188.68.224.62] script '/var/www/httptest.php' not found or unable to stat
[Mon Dec 14 05:18:09 2015] [error] [client 188.68.224.62] script '/var/www/httptest.php' not found or unable to stat
[Mon Dec 14 05:46:11 2015] [error] [client 188.68.224.62] script '/var/www/httptest.php' not found or unable to stat
[Mon Dec 14 08:37:56 2015] [error] [client 188.68.224.62] script '/var/www/httptest.php' not found or unable to stat
[Mon Dec 14 09:23:46 2015] [error] [client 188.68.224.62] script '/var/www/httptest.php' not found or unable to stat
[Mon Dec 14 12:14:44 2015] [error] [client 188.68.224.62] script '/var/www/httptest.php' not found or unable to stat
[Mon Dec 14 12:23:34 2015] [error] [client 188.68.224.62] script '/var/www/httptest.php' not found or unable to stat
[Mon Dec 14 13:43:08 2015] [error] [client 74.111.163.235] File does not exist: /var/www/browserconfig.xml
[Mon Dec 14 13:44:34 2015] [error] [client 73.174.60.201] File does not exist: /var/www/owncloud/data
stat: cannot stat `/mnt/owncloud/data//test/files/ownCloud-windowsclient.exe': No such file or directory
[Mon Dec 14 16:02:57 2015] [error] [client 188.68.224.62] script '/var/www/httptest.php' not found or unable to stat
[Mon Dec 14 16:40:46 2015] [error] [client 188.68.224.62] script '/var/www/httptest.php' not found or unable to stat
[Mon Dec 14 20:26:27 2015] [error] [client 188.68.224.62] script '/var/www/httptest.php' not found or unable to stat
[Mon Dec 14 21:13:53 2015] [error] [client 185.106.94.91] File does not exist: /var/www/phpmyadmin
[Mon Dec 14 23:36:36 2015] [error] [client 188.68.224.62] script '/var/www/httptest.php' not found or unable to stat
[Tue Dec 15 01:02:33 2015] [error] [client 188.68.224.62] script '/var/www/httptest.php' not found or unable to stat
[Tue Dec 15 02:45:13 2015] [error] [client 188.68.224.62] script '/var/www/httptest.php' not found or unable to stat
[Tue Dec 15 03:39:39 2015] [error] [client 185.25.148.240] script '/var/www/testproxy.php' not found or unable to stat
[Tue Dec 15 04:01:07 2015] [error] [client 191.115.251.39] File does not exist: /var/www/phpMyAdmin
[Tue Dec 15 04:02:25 2015] [error] [client 191.115.251.39] File does not exist: /var/www/pma
[Tue Dec 15 04:03:47 2015] [error] [client 191.115.251.39] File does not exist: /var/www/myadmin
[Tue Dec 15 04:18:57 2015] [error] [client 188.68.224.62] script '/var/www/httptest.php' not found or unable to stat
[Tue Dec 15 04:21:11 2015] [error] [client 208.52.161.177] File does not exist: /var/www/mysql
[Tue Dec 15 04:32:22 2015] [error] [client 188.68.224.62] script '/var/www/httptest.php' not found or unable to stat
[Tue Dec 15 06:38:32 2015] [warn] child process 6879 still did not exit, sending a SIGTERM
[Tue Dec 15 06:38:32 2015] [warn] child process 7001 still did not exit, sending a SIGTERM
[Tue Dec 15 06:38:32 2015] [warn] child process 7007 still did not exit, sending a SIGTERM
[Tue Dec 15 06:38:32 2015] [warn] child process 7002 still did not exit, sending a SIGTERM
[Tue Dec 15 06:38:32 2015] [warn] child process 7018 still did not exit, sending a SIGTERM
[Tue Dec 15 06:38:32 2015] [warn] child process 6893 still did not exit, sending a SIGTERM
[Tue Dec 15 06:38:34 2015] [warn] child process 6879 still did not exit, sending a SIGTERM
[Tue Dec 15 06:38:34 2015] [warn] child process 7001 still did not exit, sending a SIGTERM
[Tue Dec 15 06:38:34 2015] [warn] child process 7007 still did not exit, sending a SIGTERM
[Tue Dec 15 06:38:34 2015] [warn] child process 7002 still did not exit, sending a SIGTERM
[Tue Dec 15 06:38:34 2015] [warn] child process 7018 still did not exit, sending a SIGTERM
[Tue Dec 15 06:38:34 2015] [warn] child process 6893 still did not exit, sending a SIGTERM
[Tue Dec 15 06:38:36 2015] [warn] child process 6879 still did not exit, sending a SIGTERM
[Tue Dec 15 06:38:36 2015] [warn] child process 7001 still did not exit, sending a SIGTERM
[Tue Dec 15 06:38:36 2015] [warn] child process 7007 still did not exit, sending a SIGTERM
[Tue Dec 15 06:38:36 2015] [warn] child process 7002 still did not exit, sending a SIGTERM
[Tue Dec 15 06:38:36 2015] [warn] child process 7018 still did not exit, sending a SIGTERM
[Tue Dec 15 06:38:36 2015] [warn] child process 6893 still did not exit, sending a SIGTERM
[Tue Dec 15 06:38:38 2015] [error] child process 6879 still did not exit, sending a SIGKILL
[Tue Dec 15 06:38:38 2015] [error] child process 7001 still did not exit, sending a SIGKILL
[Tue Dec 15 06:38:38 2015] [error] child process 7007 still did not exit, sending a SIGKILL
[Tue Dec 15 06:38:38 2015] [error] child process 7002 still did not exit, sending a SIGKILL
[Tue Dec 15 06:38:38 2015] [error] child process 7018 still did not exit, sending a SIGKILL
[Tue Dec 15 06:38:38 2015] [error] child process 6893 still did not exit, sending a SIGKILL
[Tue Dec 15 06:38:39 2015] [error] could not make child process 6879 exit, attempting to continue anyway
[Tue Dec 15 06:38:39 2015] [error] could not make child process 7001 exit, attempting to continue anyway
[Tue Dec 15 06:38:39 2015] [error] could not make child process 7007 exit, attempting to continue anyway
[Tue Dec 15 06:38:39 2015] [error] could not make child process 7002 exit, attempting to continue anyway
[Tue Dec 15 06:38:39 2015] [error] could not make child process 7018 exit, attempting to continue anyway
[Tue Dec 15 06:38:39 2015] [error] could not make child process 6893 exit, attempting to continue anyway
[Tue Dec 15 06:38:39 2015] [notice] caught SIGTERM, shutting down