Re: vmysql: sql error[3]: MySQL server has gone away

patch: http://www.xiaojb.com/archives/mailtech/patch_for_vpopmail.shtml

On Sat, May 15, 2010 at 2:38 AM, Joe Littleton <[email protected]>wrote:

>  None of that helpedÂ…I have decided to go back to CentOS 4.8 and just use
> MySQL 4.1 instead of the newer version.
>
>
>  ------------------------------
>
> *From:* Sérgio Rosa [mailto:[email protected]]
> *Sent:* Friday, May 14, 2010 6:19 AM
> *To:* [email protected]
> *Subject:* Re: [vchkpw] vmysql: sql error[3]: MySQL server has gone away
>
>
>
> Have a look at this link
> http://dev.mysql.com/doc/refman/5.0/en/gone-away.html
>
> you may find some help there.
>
> Also look at this links
> http://dev.mysql.com/doc/refman/5.0/en/error-log.html
> and
> http://dev.mysql.com/doc/refman/5.0/en/slow-query-log.html
>
> try to enable slow-query-log. It might come up with an unknown  slow query
> .
>
> when you have those errors if you log to the mysql server can you query
> anything to the db? or the server is dead?
>
> Also take a look at this link
>
> http://www.unix.com/web-programming-web-2-0-mashups/75618-mysql-tuning-tools-mysqltuner-pl-tuning-primer-sh.html
>
> Come back with reports and news.
>
> sergio rosa
>
> On 13/05/2010 17:15, Joe Littleton wrote:
>
> I tried your config for my.cnf but I am still having the same issue.
>
> It appears that if mysql is restarted whatever authdaemon is looking at is
> gone. ItÂ’s like there is a specific PID or something and once that PID is
> gone authdaemon believes mysql has stopped.
>
>
>
> >Hi!
>
> >I had a similar problem and it was being caused by excess tuning to
> mysql. Now I run my mysql with this my.cnf
>
> >The issue was not with vpopmail but with web applications. A few years
> ago I had a mysqld has gone away but it was because a small max_connection
> value.
>
> >max_connections = 75 <-------------------- what is your number of max
> conn?
> key_buffer = 120M
> max_allowed_packet = 24M
> table_cache = 3072
> sort_buffer_size = 2M
> read_buffer_size = 2M
> read_rnd_buffer_size = 4M
> myisam_sort_buffer_size = 64M
> thread_cache_size = 8
> query_cache_size = 128M
> query_cache_limit = 2M
> join_buffer_size = 1M
> thread_concurrency = 2
> long_query_time = 5
> log-slow-queries = /tmp/slow-queries.log
> open_files_limit = 6500
> max_heap_table_size = 64M
> query_cache_min_res_unit = 2K
> wait_timeout = 60 <------------------- Watch this value it was giving my
> headache
> connect_timeout = 10 <------------------- Watch this value it was giving my
> headache
> interactive_timeout = 120 <------------------- Watch this value it was
> giving my headache
> max_connect_errors = 1000 <------------------- Watch this value it was
> giving my headache
> expire_logs_days = 7
> low_priority_updates = 1
> max_join_size = 4294967295
>
> This is a dedicated server with 2G, so the others values my not apply to
> your setup.
>
> Hope that helps.
> sergio rosa
>
> --
>
> *AWD**
> *arquitectura web e design, lda
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>
> tlm +351 913 489 195
> mail [email protected]
>
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>
>
>
> --
>
> *AWD**
> *arquitectura web e design, lda
> rua do moinho velho, 19 2ºdto
> 2655-242 ericeira
>
> tlm +351 913 489 195
> mail [email protected]
>
> url http://www.awd.pt
>
>  
>



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