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From:Steffan A. Cline Date:November 8 2006 2:14pm
Subject:V 5.0.18 on Mac OS X
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I am having an issue with MySQL running on Mac OS X. Currently the version
as stated 5.0.18 on a dual G4 Xserve with 1gb of ram. MySQL is mainly the
only thing running on this server. I am trying to track down an issue in
which MySQL is being overloaded and it consistently damages the same one or
two tables. I am trying to narrow down the issue to the web service
connecting to MySQL or MySQL itself. When I check the status I see a ton of
locks and unauthenticated connections. Any suggestions of what to look for
on the MySQL side? It seems rather odd that being overloaded is that it
damages the tables. There is no replication or auto backups in place with
this that could cause these issues. Some of the queries thrown are indeed
big ones and do require many ticks to calculate but still, what is left? I
just made some changes to the config and this is now the base of what I

# The MySQL server
port            = 3306
socket          = /tmp/mysql.sock
key_buffer = 256M
max_allowed_packet = 50M
table_cache = 256
sort_buffer_size = 1M
read_buffer_size = 1M
read_rnd_buffer_size = 4M
myisam_sort_buffer_size = 64M
#thread_cache_size = 8
query_cache_type = 1
query_cache_size = 128M
query_cache_limit = 128M
# added the next few lines for debugging all the way to the next comment
interactive_timeout = 300
wait_timeout = 300
max_connections = 250
thread_cache_size = 40
log_error = /var/log/mysqld-error.log
log_slow_queries = /var/log/mysqld-slow.log
# Try number of CPU's*2 for thread_concurrency
thread_concurrency = 8

Could it be the version of MySQL that is causing the damage? I did a fsck on
the drive and all comes back fine. What's left?



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Steffan A. Cline
Steffan@stripped                             Phoenix, Az                                  USA
AIM : SteffanC          ICQ : 57234309
                                  Lasso Partner Alliance Member

V 5.0.18 on Mac OS XSteffan A. Cline8 Nov
  • Re: V 5.0.18 on Mac OS XDan Buettner8 Nov