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This problem is often because you have to small resources to run the Mysql server <br />
But this is a sample configuration that might help<br />
<br />
[mysqld]<br />
<br />
port &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;= 3306<br />
socket &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;= /tmp/mysql.sock<br />
skip-locking<br />
key_buffer = 384M<br />
max_allowed_packet = 64M<br />
table_cache = 4096<br />
sort_buffer_size = 2M<br />
read_buffer_size = 2M<br />
read_rnd_buffer_size = 64M<br />
myisam_sort_buffer_size = 64M<br />
thread_cache_size = 8<br />
query_cache_size = 32M<br />
<br />
This can also be a problem that you are running a to old version of Mysql with a 3:d party application (like drupal perhaps?) that require a more modern version of Mysql then you are running<br />
<br />
Hope it helps<br />
//Karl.
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This problem is often because you have to small resources to run the Mysql server
But this is a sample configuration that might help

[mysqld]

port       = 3306
socket       = /tmp/mysql.sock
skip-locking
key_buffer = 384M
max_allowed_packet = 64M
table_cache = 4096
sort_buffer_size = 2M
read_buffer_size = 2M
read_rnd_buffer_size = 64M
myisam_sort_buffer_size = 64M
thread_cache_size = 8
query_cache_size = 32M

This can also be a problem that you are running a to old version of Mysql with a 3:d party application (like drupal perhaps?) that require a more modern version of Mysql then you are running

Hope it helps
//Karl.

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&gt;&gt;This problem is often because you have to small resources to run the Mysql server <br />
<br />
I have around 3GB ram, plenty of disk space and the dbs total about 225MB in size. &nbsp;The version is &nbsp;5.0.92-community
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>>This problem is often because you have to small resources to run the Mysql server

I have around 3GB ram, plenty of disk space and the dbs total about 225MB in size.  The version is  5.0.92-community

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ERROR 2006 (HY000): MySQL server has gone away<br />
No connection. Trying to reconnect...<br />
Connection id: &nbsp; &nbsp;4688<br />
Current database: foo_bar<br />
<br />
is the constant complaint of this db. I mean the query succeeds but that phenomenon is at least irritating. How to stop it?<br />
<br />
Perhaps it's something to do with the settings? Please see attached file.<br />
<a href="https://filedb.experts-exchange.com/incoming/2011/10_w41/509775/vars.txt" target="_blank" class="file-inline" title="show variables (19 KB)"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path d="M67.508 468.467c-58.005-58.013-58.016-151.92 0-209.943l225.011-225.04c44.643-44.645 117.279-44.645 161.92 0 44.743 44.749 44.753 117.186 0 161.944l-189.465 189.49c-31.41 31.413-82.518 31.412-113.926.001-31.479-31.482-31.49-82.453 0-113.944L311.51 110.491c4.687-4.687 12.286-4.687 16.972 0l16.967 16.971c4.685 4.686 4.685 12.283 0 16.969L184.983 304.917c-12.724 12.724-12.73 33.328 0 46.058 12.696 12.697 33.356 12.699 46.054-.001l189.465-189.489c25.987-25.989 25.994-68.06.001-94.056-25.931-25.934-68.119-25.932-94.049 0l-225.01 225.039c-39.249 39.252-39.258 102.795-.001 142.057 39.285 39.29 102.885 39.287 142.162-.028A739446.174 739446.174 0 0 1 439.497 238.49c4.686-4.687 12.282-4.684 16.969.004l16.967 16.971c4.685 4.686 4.689 12.279.004 16.965a755654.128 755654.128 0 0 0-195.881 195.996c-58.034 58.092-152.004 58.093-210.048.041z"/></svg>vars.txt</a>
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vars.txt

ERROR 2006 (HY000): MySQL server has gone away
No connection. Trying to reconnect...
Connection id:    4688
Current database: foo_bar

is the constant complaint of this db. I mean the query succeeds but that phenomenon is at least irritating. How to stop it?

Perhaps it's something to do with the settings? Please see attached file.

Connection 'going away' problems

MySQL is an open source, relational database management system that runs as a server providing multi-user access to a number of databases. Acquired by Oracle in 2009, it is frequently used in combination with PHP installations, powering most of the WordPress installations.