Hi,
I'm running MySQL 5.0.19 (Debian sid, package revision 3) on a Dual
Opteron250 64 bit machine with 4gb memory.
The problem i'm experiencing is that at certain moments, the connection
between my perlscripts and the database gets disconnected:
| DBI connect('products','beheerv',...) failed: Lost connection to MySQL
| server during query at /var/web/modules/Master.pm line 98
| Master.pm: unable to connect to products db: Lost connection to MySQL
| server during query at /var/web/modules/Master.pm line 98.
And:
| DBD::mysql::st execute failed: Lost connection to MySQL server during
| query at /var/web/cron/stats.pl line 673.
| DBD::mysql::st fetchrow_hashref failed: fetch() without execute() at
| /var/web/cron/stats.pl line 677.
I thought the query at that spot would be wrong, but it turns out that
this alone is not causing the problem. If i skip over the rest of the
perlscript and jump to that line 672 immediately, it works like
expected.
I'd like to hear how I can debug this. MySQL doesn't seem to log
ANYTHING about this issue. All I get is the messages above. I turned on
query logging, and it just shows the query that is executed at line 673
of stats.pl:
| SELECT theme, cat, subcat, p_ids,
| UNIX_TIMESTAMP(insert_time) as insert_time
| FROM log_product
| WHERE insert_time >= FROM_UNIXTIME('1146348000')
| AND insert_time < FROM_UNIXTIME('1146952800');
(this query, when redirected to a textfile returns about 25 megabytes of
data, in ~540784 rows)
After that no more queries from the same connection ID are logged.
But that is expected, as the connection was lost ;)
Can anyone shed any light on this issue?
Thanks!!
Sander.
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