| Subject: | DBD::mysql::db do failes when too many concurrenct connections |
Originally reported by Oli Sennhauser at
http://bugs.mysql.com/bug.php?id=20629
Description:
When we run a benchmark script which need for the PT Workshop. It gives
an error with too many concurrent connections.
How to repeat:
# perl benchmark-sql.pl --flush=0 -c 1 -n 10000 --schema=world -e "select 1"
Total Time is: 1.0333
Number of Iterations: 10000
Number of Clients: 1
# Time/Query Total Time Query
--- ---------- ---------- -----
1. 0.00010 1.03315 select 1
1. select 1
# perl benchmark-sql.pl --flush=0 -c 5 -n 2000 --schema=world -e "select 1"
ERROR processing SQL statement #1:
select 1
DBD::mysql::db do failed: Lost connection to MySQL server during query
at benchmark-sql.pl line 132.
at benchmark-sql.pl line 132
eval {...} called at benchmark-sql.pl line 132
# perl benchmark-sql.pl --flush=0 -c 25 -n 400 --schema=world -e "select 1"
DBD::mysql::db do failed: Lost connection to MySQL server during query
at benchmark-sql.pl line 112.
at benchmark-sql.pl line 112
Original file to repeat the issue is hidden, but I was not able to find
a way to put hidden file into this user interface. So, please, if you
need test case, let me, or some other Oracle employee who has developer
access to bugs.mysql.com, know how to send it privately.