How to understand "unable to connect" mysql error messages?

Question

I have the following error message:

SQLSTATE [HY000] [2003] Unable to connect to MySQL server on '192.168.50.45' (4)

How would I make it out (I have HY000, I have 2003, and I have (4).

+5

6 answers

perror, MySQL:

shell> perror 4
OS error code   4:  Interrupted system call

, , - (errno 111)

+4

geertjanvdk 27 . '12 21:23

FWIW, 2-3 , , , ( ) (4) , . , (4) . unix, "netem" .

- . (4), . , , . , , , , , , .

+3

. connect_timeout.

+1

hahakubile 16 . '13 16:07

.

DNS-, .

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MySQL, .

0

NiX 17 . '13 4:07

@cdhowie , , (4) mysql, . . - , -. "" , , , - .

0

WoodyGSD 19 . '14 16:34

cdhowie · Accepted Answer · 2012-06-27T16:47:18+0000

HY000 - ODBC, 2003 - , MySQL, , . 4 - , MySQL. (, Linux "(111)", , connect() ECONNREFUSED, 111.)