( ! ) 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	0.0000	238472	{main}( )	.../index.php:0
2	0.0001	238904	require( '/var/www/html/wp-blog-header.php' )	.../index.php:17
3	0.0001	239568	require_once( '/var/www/html/wp-load.php' )	.../wp-blog-header.php:13
4	0.0002	240304	require_once( '/var/www/html/wp-config.php' )	.../wp-load.php:37
5	0.0002	241544	require_once( '/var/www/html/wp-settings.php' )	.../wp-config.php:54
6	0.0044	777344	require_wp_db( )	.../wp-settings.php:124
7	0.0045	831696	require_once( '/var/www/html/wp-content/db.php' )	.../load.php:470
8	0.0110	1161200	W3TC\DbCache_Wpdb::instance( )	.../db.php:41
9	0.0113	1252616	W3TC\DbCache_WpdbNew->initialize( )	.../DbCache_Wpdb.php:53
10	0.0113	1252664	W3TC\DbCache_WpdbInjection_QueryCaching->initialize( )	.../DbCache_WpdbNew.php:104
11	0.0113	1252768	W3TC\_CallUnderlying->initialize( )	.../DbCache_WpdbInjection_QueryCaching.php:232
12	0.0113	1252888	W3TC\DbCache_WpdbNew->initialize( )	.../DbCache_WpdbNew.php:359
13	0.0113	1252936	W3TC\DbCache_WpdbInjection->initialize( )	.../DbCache_WpdbNew.php:104
14	0.0113	1252984	W3TC\DbCache_WpdbNew->default_initialize( )	.../DbCache_WpdbInjection.php:38
15	0.0113	1253176	wpdb->__construct( )	.../DbCache_WpdbNew.php:218
16	0.0113	1252984	W3TC\DbCache_WpdbNew->db_connect( )	.../wp-db.php:632
17	0.0113	1253432	wpdb->db_connect( )	.../DbCache_WpdbNew.php:97
18	0.0114	1254968	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

0.0000

238472

{main}( )

.../index.php:0

0.0001

238904

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

.../index.php:17

0.0001

239568

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

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

0.0002

240304

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

.../wp-load.php:37

0.0002

241544

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

.../wp-config.php:54

0.0044

777344

require_wp_db( )

.../wp-settings.php:124

0.0045

831696

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

.../load.php:470

0.0110

1161200

W3TC\DbCache_Wpdb::instance( )

.../db.php:41

0.0113

1252616

W3TC\DbCache_WpdbNew->initialize( )

.../DbCache_Wpdb.php:53

0.0113

1252664

W3TC\DbCache_WpdbInjection_QueryCaching->initialize( )

.../DbCache_WpdbNew.php:104

0.0113

1252768

W3TC\_CallUnderlying->initialize( )

.../DbCache_WpdbInjection_QueryCaching.php:232

0.0113

1252888

W3TC\DbCache_WpdbNew->initialize( )

.../DbCache_WpdbNew.php:359

0.0113

1252936

W3TC\DbCache_WpdbInjection->initialize( )

.../DbCache_WpdbNew.php:104

0.0113

1252984

W3TC\DbCache_WpdbNew->default_initialize( )

.../DbCache_WpdbInjection.php:38

0.0113

1253176

wpdb->__construct( )

.../DbCache_WpdbNew.php:218

0.0113

1252984

W3TC\DbCache_WpdbNew->db_connect( )

.../wp-db.php:632

0.0113

1253432

wpdb->db_connect( )

.../DbCache_WpdbNew.php:97

0.0114

1254968

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	0.0000	238472	{main}( )	.../index.php:0
2	0.0001	238904	require( '/var/www/html/wp-blog-header.php' )	.../index.php:17
3	0.0001	239568	require_once( '/var/www/html/wp-load.php' )	.../wp-blog-header.php:13
4	0.0002	240304	require_once( '/var/www/html/wp-config.php' )	.../wp-load.php:37
5	0.0002	241544	require_once( '/var/www/html/wp-settings.php' )	.../wp-config.php:54
6	0.0044	777344	require_wp_db( )	.../wp-settings.php:124
7	0.0045	831696	require_once( '/var/www/html/wp-content/db.php' )	.../load.php:470
8	0.0110	1161200	W3TC\DbCache_Wpdb::instance( )	.../db.php:41
9	0.0113	1252616	W3TC\DbCache_WpdbNew->initialize( )	.../DbCache_Wpdb.php:53
10	0.0113	1252664	W3TC\DbCache_WpdbInjection_QueryCaching->initialize( )	.../DbCache_WpdbNew.php:104
11	0.0113	1252768	W3TC\_CallUnderlying->initialize( )	.../DbCache_WpdbInjection_QueryCaching.php:232
12	0.0113	1252888	W3TC\DbCache_WpdbNew->initialize( )	.../DbCache_WpdbNew.php:359
13	0.0113	1252936	W3TC\DbCache_WpdbInjection->initialize( )	.../DbCache_WpdbNew.php:104
14	0.0113	1252984	W3TC\DbCache_WpdbNew->default_initialize( )	.../DbCache_WpdbInjection.php:38
15	0.0113	1253176	wpdb->__construct( )	.../DbCache_WpdbNew.php:218
16	0.0113	1252984	W3TC\DbCache_WpdbNew->db_connect( )	.../wp-db.php:632
17	0.0113	1253432	wpdb->db_connect( )	.../DbCache_WpdbNew.php:97
18	0.0118	1254792	W3TC\DbCache_WpdbNew->db_connect( )	.../wp-db.php:1662
19	0.0118	1254792	wpdb->db_connect( )	.../DbCache_WpdbNew.php:97
20	0.0118	1254936	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

0.0000

238472

{main}( )

.../index.php:0

0.0001

238904

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

.../index.php:17

0.0001

239568

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

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

0.0002

240304

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

.../wp-load.php:37

0.0002

241544

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

.../wp-config.php:54

0.0044

777344

require_wp_db( )

.../wp-settings.php:124

0.0045

831696

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

.../load.php:470

0.0110

1161200

W3TC\DbCache_Wpdb::instance( )

.../db.php:41

0.0113

1252616

W3TC\DbCache_WpdbNew->initialize( )

.../DbCache_Wpdb.php:53

0.0113

1252664

W3TC\DbCache_WpdbInjection_QueryCaching->initialize( )

.../DbCache_WpdbNew.php:104

0.0113

1252768

W3TC\_CallUnderlying->initialize( )

.../DbCache_WpdbInjection_QueryCaching.php:232

0.0113

1252888

W3TC\DbCache_WpdbNew->initialize( )

.../DbCache_WpdbNew.php:359

0.0113

1252936

W3TC\DbCache_WpdbInjection->initialize( )

.../DbCache_WpdbNew.php:104

0.0113

1252984

W3TC\DbCache_WpdbNew->default_initialize( )

.../DbCache_WpdbInjection.php:38

0.0113

1253176

wpdb->__construct( )

.../DbCache_WpdbNew.php:218

0.0113

1252984

W3TC\DbCache_WpdbNew->db_connect( )

.../wp-db.php:632

0.0113

1253432

wpdb->db_connect( )

.../DbCache_WpdbNew.php:97

0.0118

1254792

W3TC\DbCache_WpdbNew->db_connect( )

.../wp-db.php:1662

0.0118

1254792

wpdb->db_connect( )

.../DbCache_WpdbNew.php:97

0.0118

1254936

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	0.0000	238472	{main}( )	.../index.php:0
2	0.0001	238904	require( '/var/www/html/wp-blog-header.php' )	.../index.php:17
3	0.0001	239568	require_once( '/var/www/html/wp-load.php' )	.../wp-blog-header.php:13
4	0.0002	240304	require_once( '/var/www/html/wp-config.php' )	.../wp-load.php:37
5	0.0002	241544	require_once( '/var/www/html/wp-settings.php' )	.../wp-config.php:54
6	0.0044	777344	require_wp_db( )	.../wp-settings.php:124
7	0.0045	831696	require_once( '/var/www/html/wp-content/db.php' )	.../load.php:470
8	0.0110	1161200	W3TC\DbCache_Wpdb::instance( )	.../db.php:41
9	0.0113	1252616	W3TC\DbCache_WpdbNew->initialize( )	.../DbCache_Wpdb.php:53
10	0.0113	1252664	W3TC\DbCache_WpdbInjection_QueryCaching->initialize( )	.../DbCache_WpdbNew.php:104
11	0.0113	1252768	W3TC\_CallUnderlying->initialize( )	.../DbCache_WpdbInjection_QueryCaching.php:232
12	0.0113	1252888	W3TC\DbCache_WpdbNew->initialize( )	.../DbCache_WpdbNew.php:359
13	0.0113	1252936	W3TC\DbCache_WpdbInjection->initialize( )	.../DbCache_WpdbNew.php:104
14	0.0113	1252984	W3TC\DbCache_WpdbNew->default_initialize( )	.../DbCache_WpdbInjection.php:38
15	0.0113	1253176	wpdb->__construct( )	.../DbCache_WpdbNew.php:218
16	0.0113	1252984	W3TC\DbCache_WpdbNew->db_connect( )	.../wp-db.php:632
17	0.0113	1253432	wpdb->db_connect( )	.../DbCache_WpdbNew.php:97
18	0.0118	1254792	W3TC\DbCache_WpdbNew->db_connect( )	.../wp-db.php:1662
19	0.0118	1254792	wpdb->db_connect( )	.../DbCache_WpdbNew.php:97
20	0.0118	1254936	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

0.0000

238472

{main}( )

.../index.php:0

0.0001

238904

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

.../index.php:17

0.0001

239568

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

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

0.0002

240304

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

.../wp-load.php:37

0.0002

241544

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

.../wp-config.php:54

0.0044

777344

require_wp_db( )

.../wp-settings.php:124

0.0045

831696

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

.../load.php:470

0.0110

1161200

W3TC\DbCache_Wpdb::instance( )

.../db.php:41

0.0113

1252616

W3TC\DbCache_WpdbNew->initialize( )

.../DbCache_Wpdb.php:53

0.0113

1252664

W3TC\DbCache_WpdbInjection_QueryCaching->initialize( )

.../DbCache_WpdbNew.php:104

0.0113

1252768

W3TC\_CallUnderlying->initialize( )

.../DbCache_WpdbInjection_QueryCaching.php:232

0.0113

1252888

W3TC\DbCache_WpdbNew->initialize( )

.../DbCache_WpdbNew.php:359

0.0113

1252936

W3TC\DbCache_WpdbInjection->initialize( )

.../DbCache_WpdbNew.php:104

0.0113

1252984

W3TC\DbCache_WpdbNew->default_initialize( )

.../DbCache_WpdbInjection.php:38

0.0113

1253176

wpdb->__construct( )

.../DbCache_WpdbNew.php:218

0.0113

1252984

W3TC\DbCache_WpdbNew->db_connect( )

.../wp-db.php:632

0.0113

1253432

wpdb->db_connect( )

.../DbCache_WpdbNew.php:97

0.0118

1254792

W3TC\DbCache_WpdbNew->db_connect( )

.../wp-db.php:1662

0.0118

1254792

wpdb->db_connect( )

.../DbCache_WpdbNew.php:97

0.0118

1254936

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.