( ! ) Warning: mysqli_real_connect(): (HY000/2002): No such file or directory in /var/www/html/wp-includes/wp-db.php on line 1635
Call Stack
#	Time	Memory	Function	Location
1	0.0001	238496	{main}( )	.../index.php:0
2	0.0001	238928	require( '/var/www/html/wp-blog-header.php' )	.../index.php:17
3	0.0001	239592	require_once( '/var/www/html/wp-load.php' )	.../wp-blog-header.php:13
4	0.0002	240328	require_once( '/var/www/html/wp-config.php' )	.../wp-load.php:37
5	0.0003	241568	require_once( '/var/www/html/wp-settings.php' )	.../wp-config.php:54
6	0.0048	777368	require_wp_db( )	.../wp-settings.php:124
7	0.0049	831720	require_once( '/var/www/html/wp-content/db.php' )	.../load.php:470
8	0.0110	1161208	W3TC\DbCache_Wpdb::instance( )	.../db.php:41
9	0.0113	1252648	W3TC\DbCache_WpdbNew->initialize( )	.../DbCache_Wpdb.php:53
10	0.0113	1252696	W3TC\DbCache_WpdbInjection_QueryCaching->initialize( )	.../DbCache_WpdbNew.php:104
11	0.0113	1252800	W3TC\_CallUnderlying->initialize( )	.../DbCache_WpdbInjection_QueryCaching.php:232
12	0.0113	1252920	W3TC\DbCache_WpdbNew->initialize( )	.../DbCache_WpdbNew.php:359
13	0.0113	1252968	W3TC\DbCache_WpdbInjection->initialize( )	.../DbCache_WpdbNew.php:104
14	0.0113	1253016	W3TC\DbCache_WpdbNew->default_initialize( )	.../DbCache_WpdbInjection.php:38
15	0.0113	1253208	wpdb->__construct( )	.../DbCache_WpdbNew.php:218
16	0.0113	1253016	W3TC\DbCache_WpdbNew->db_connect( )	.../wp-db.php:632
17	0.0113	1253464	wpdb->db_connect( )	.../DbCache_WpdbNew.php:97
18	0.0116	1255000	mysqli_real_connect ( )	.../wp-db.php:1635

( ! ) Warning: mysqli_real_connect(): (HY000/2002): No such file or directory in /var/www/html/wp-includes/wp-db.php on line 1635

Call Stack

Time

Memory

Function

Location

0.0001

238496

{main}( )

.../index.php:0

0.0001

238928

require( '/var/www/html/wp-blog-header.php' )

.../index.php:17

0.0001

239592

require_once( '/var/www/html/wp-load.php' )

.../wp-blog-header.php:13

0.0002

240328

require_once( '/var/www/html/wp-config.php' )

.../wp-load.php:37

0.0003

241568

require_once( '/var/www/html/wp-settings.php' )

.../wp-config.php:54

0.0048

777368

require_wp_db( )

.../wp-settings.php:124

0.0049

831720

require_once( '/var/www/html/wp-content/db.php' )

.../load.php:470

0.0110

1161208

W3TC\DbCache_Wpdb::instance( )

.../db.php:41

0.0113

1252648

W3TC\DbCache_WpdbNew->initialize( )

.../DbCache_Wpdb.php:53

0.0113

1252696

W3TC\DbCache_WpdbInjection_QueryCaching->initialize( )

.../DbCache_WpdbNew.php:104

0.0113

1252800

W3TC\_CallUnderlying->initialize( )

.../DbCache_WpdbInjection_QueryCaching.php:232

0.0113

1252920

W3TC\DbCache_WpdbNew->initialize( )

.../DbCache_WpdbNew.php:359

0.0113

1252968

W3TC\DbCache_WpdbInjection->initialize( )

.../DbCache_WpdbNew.php:104

0.0113

1253016

W3TC\DbCache_WpdbNew->default_initialize( )

.../DbCache_WpdbInjection.php:38

0.0113

1253208

wpdb->__construct( )

.../DbCache_WpdbNew.php:218

0.0113

1253016

W3TC\DbCache_WpdbNew->db_connect( )

.../wp-db.php:632

0.0113

1253464

wpdb->db_connect( )

.../DbCache_WpdbNew.php:97

0.0116

1255000

mysqli_real_connect ( )

.../wp-db.php:1635

( ! ) Deprecated: mysql_connect(): The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead in /var/www/html/wp-includes/wp-db.php on line 1667
Call Stack
#	Time	Memory	Function	Location
1	0.0001	238496	{main}( )	.../index.php:0
2	0.0001	238928	require( '/var/www/html/wp-blog-header.php' )	.../index.php:17
3	0.0001	239592	require_once( '/var/www/html/wp-load.php' )	.../wp-blog-header.php:13
4	0.0002	240328	require_once( '/var/www/html/wp-config.php' )	.../wp-load.php:37
5	0.0003	241568	require_once( '/var/www/html/wp-settings.php' )	.../wp-config.php:54
6	0.0048	777368	require_wp_db( )	.../wp-settings.php:124
7	0.0049	831720	require_once( '/var/www/html/wp-content/db.php' )	.../load.php:470
8	0.0110	1161208	W3TC\DbCache_Wpdb::instance( )	.../db.php:41
9	0.0113	1252648	W3TC\DbCache_WpdbNew->initialize( )	.../DbCache_Wpdb.php:53
10	0.0113	1252696	W3TC\DbCache_WpdbInjection_QueryCaching->initialize( )	.../DbCache_WpdbNew.php:104
11	0.0113	1252800	W3TC\_CallUnderlying->initialize( )	.../DbCache_WpdbInjection_QueryCaching.php:232
12	0.0113	1252920	W3TC\DbCache_WpdbNew->initialize( )	.../DbCache_WpdbNew.php:359
13	0.0113	1252968	W3TC\DbCache_WpdbInjection->initialize( )	.../DbCache_WpdbNew.php:104
14	0.0113	1253016	W3TC\DbCache_WpdbNew->default_initialize( )	.../DbCache_WpdbInjection.php:38
15	0.0113	1253208	wpdb->__construct( )	.../DbCache_WpdbNew.php:218
16	0.0113	1253016	W3TC\DbCache_WpdbNew->db_connect( )	.../wp-db.php:632
17	0.0113	1253464	wpdb->db_connect( )	.../DbCache_WpdbNew.php:97
18	0.0120	1254824	W3TC\DbCache_WpdbNew->db_connect( )	.../wp-db.php:1662
19	0.0120	1254824	wpdb->db_connect( )	.../DbCache_WpdbNew.php:97
20	0.0120	1254968	mysql_connect ( )	.../wp-db.php:1667

( ! ) Deprecated: mysql_connect(): The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead in /var/www/html/wp-includes/wp-db.php on line 1667

Call Stack

Time

Memory

Function

Location

0.0001

238496

{main}( )

.../index.php:0

0.0001

238928

require( '/var/www/html/wp-blog-header.php' )

.../index.php:17

0.0001

239592

require_once( '/var/www/html/wp-load.php' )

.../wp-blog-header.php:13

0.0002

240328

require_once( '/var/www/html/wp-config.php' )

.../wp-load.php:37

0.0003

241568

require_once( '/var/www/html/wp-settings.php' )

.../wp-config.php:54

0.0048

777368

require_wp_db( )

.../wp-settings.php:124

0.0049

831720

require_once( '/var/www/html/wp-content/db.php' )

.../load.php:470

0.0110

1161208

W3TC\DbCache_Wpdb::instance( )

.../db.php:41

0.0113

1252648

W3TC\DbCache_WpdbNew->initialize( )

.../DbCache_Wpdb.php:53

0.0113

1252696

W3TC\DbCache_WpdbInjection_QueryCaching->initialize( )

.../DbCache_WpdbNew.php:104

0.0113

1252800

W3TC\_CallUnderlying->initialize( )

.../DbCache_WpdbInjection_QueryCaching.php:232

0.0113

1252920

W3TC\DbCache_WpdbNew->initialize( )

.../DbCache_WpdbNew.php:359

0.0113

1252968

W3TC\DbCache_WpdbInjection->initialize( )

.../DbCache_WpdbNew.php:104

0.0113

1253016

W3TC\DbCache_WpdbNew->default_initialize( )

.../DbCache_WpdbInjection.php:38

0.0113

1253208

wpdb->__construct( )

.../DbCache_WpdbNew.php:218

0.0113

1253016

W3TC\DbCache_WpdbNew->db_connect( )

.../wp-db.php:632

0.0113

1253464

wpdb->db_connect( )

.../DbCache_WpdbNew.php:97

0.0120

1254824

W3TC\DbCache_WpdbNew->db_connect( )

.../wp-db.php:1662

0.0120

1254824

wpdb->db_connect( )

.../DbCache_WpdbNew.php:97

0.0120

1254968

mysql_connect ( )

.../wp-db.php:1667

( ! ) Warning: mysql_connect(): No such file or directory in /var/www/html/wp-includes/wp-db.php on line 1667
Call Stack
#	Time	Memory	Function	Location
1	0.0001	238496	{main}( )	.../index.php:0
2	0.0001	238928	require( '/var/www/html/wp-blog-header.php' )	.../index.php:17
3	0.0001	239592	require_once( '/var/www/html/wp-load.php' )	.../wp-blog-header.php:13
4	0.0002	240328	require_once( '/var/www/html/wp-config.php' )	.../wp-load.php:37
5	0.0003	241568	require_once( '/var/www/html/wp-settings.php' )	.../wp-config.php:54
6	0.0048	777368	require_wp_db( )	.../wp-settings.php:124
7	0.0049	831720	require_once( '/var/www/html/wp-content/db.php' )	.../load.php:470
8	0.0110	1161208	W3TC\DbCache_Wpdb::instance( )	.../db.php:41
9	0.0113	1252648	W3TC\DbCache_WpdbNew->initialize( )	.../DbCache_Wpdb.php:53
10	0.0113	1252696	W3TC\DbCache_WpdbInjection_QueryCaching->initialize( )	.../DbCache_WpdbNew.php:104
11	0.0113	1252800	W3TC\_CallUnderlying->initialize( )	.../DbCache_WpdbInjection_QueryCaching.php:232
12	0.0113	1252920	W3TC\DbCache_WpdbNew->initialize( )	.../DbCache_WpdbNew.php:359
13	0.0113	1252968	W3TC\DbCache_WpdbInjection->initialize( )	.../DbCache_WpdbNew.php:104
14	0.0113	1253016	W3TC\DbCache_WpdbNew->default_initialize( )	.../DbCache_WpdbInjection.php:38
15	0.0113	1253208	wpdb->__construct( )	.../DbCache_WpdbNew.php:218
16	0.0113	1253016	W3TC\DbCache_WpdbNew->db_connect( )	.../wp-db.php:632
17	0.0113	1253464	wpdb->db_connect( )	.../DbCache_WpdbNew.php:97
18	0.0120	1254824	W3TC\DbCache_WpdbNew->db_connect( )	.../wp-db.php:1662
19	0.0120	1254824	wpdb->db_connect( )	.../DbCache_WpdbNew.php:97
20	0.0120	1254968	mysql_connect ( )	.../wp-db.php:1667

( ! ) Warning: mysql_connect(): No such file or directory in /var/www/html/wp-includes/wp-db.php on line 1667

Call Stack

Time

Memory

Function

Location

0.0001

238496

{main}( )

.../index.php:0

0.0001

238928

require( '/var/www/html/wp-blog-header.php' )

.../index.php:17

0.0001

239592

require_once( '/var/www/html/wp-load.php' )

.../wp-blog-header.php:13

0.0002

240328

require_once( '/var/www/html/wp-config.php' )

.../wp-load.php:37

0.0003

241568

require_once( '/var/www/html/wp-settings.php' )

.../wp-config.php:54

0.0048

777368

require_wp_db( )

.../wp-settings.php:124

0.0049

831720

require_once( '/var/www/html/wp-content/db.php' )

.../load.php:470

0.0110

1161208

W3TC\DbCache_Wpdb::instance( )

.../db.php:41

0.0113

1252648

W3TC\DbCache_WpdbNew->initialize( )

.../DbCache_Wpdb.php:53

0.0113

1252696

W3TC\DbCache_WpdbInjection_QueryCaching->initialize( )

.../DbCache_WpdbNew.php:104

0.0113

1252800

W3TC\_CallUnderlying->initialize( )

.../DbCache_WpdbInjection_QueryCaching.php:232

0.0113

1252920

W3TC\DbCache_WpdbNew->initialize( )

.../DbCache_WpdbNew.php:359

0.0113

1252968

W3TC\DbCache_WpdbInjection->initialize( )

.../DbCache_WpdbNew.php:104

0.0113

1253016

W3TC\DbCache_WpdbNew->default_initialize( )

.../DbCache_WpdbInjection.php:38

0.0113

1253208

wpdb->__construct( )

.../DbCache_WpdbNew.php:218

0.0113

1253016

W3TC\DbCache_WpdbNew->db_connect( )

.../wp-db.php:632

0.0113

1253464

wpdb->db_connect( )

.../DbCache_WpdbNew.php:97

0.0120

1254824

W3TC\DbCache_WpdbNew->db_connect( )

.../wp-db.php:1662

0.0120

1254824

wpdb->db_connect( )

.../DbCache_WpdbNew.php:97

0.0120

1254968

mysql_connect ( )

.../wp-db.php:1667

No such file or directory

Error establishing a database connection

This either means that the username and password information in your wp-config.php file is incorrect or we can’t contact the database server at localhost. This could mean your host’s database server is down.

Are you sure you have the correct username and password?
Are you sure you have typed the correct hostname?
Are you sure the database server is running?

If you’re unsure what these terms mean you should probably contact your host. If you still need help you can always visit the WordPress Support Forums.