Re: MySQL server has gone away

Am 03.04.2017 um 18:11 schrieb Mahmood N:
> The my.conf file contains
>
> log_error=/var/log/mysql/error.log
> slow_query_log=1
> slow_query_log_file=/var/log/mysql/error_slow.log
> max_connections=200
> max_user_connections=30
> wait_timeout=30
> interactive_timeout=50
> long_query_time=5
> character-set-client-handshake = FALSE
> thread_concurrency = 8
> query_cache_size = 16M
> thread_cache_size = 8
> max_allowed_packet = 8M

"long_query_time=5" is low when you talk about 5 seconds as i remember 
in previuos posts - given that a reasonable server should be able to 
handle hunredts to thousands of requests per second anything above 1 
second is a alert sign

> I restarted the mysql server (/etc/init.d/mysql restart on ubuntu) and
> tested the email page one again. I again see that error message on the
> browser, however, the log files are empty.

look also in phpinfo() for mysqlnd and mysql params containing "timeout" 
and/or "max"

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