I am running 4.0.4 using innodb tables on a linux box.
My innodb config is innodb_data_file_path = ibdata1:1800M;ibdata2:1800M;...ibdata10:1800M set-variable = innodb_mirrored_log_groups=1 set-variable = innodb_log_files_in_group=3 set-variable = innodb_log_file_size=500M set-variable = innodb_log_buffer_size=30M set-variable = innodb_buffer_pool_size=800M set-variable = innodb_additional_mem_pool_size=150M
My question has to do with innodb's usage of the redo log files. Currently they are: 524288000 Mar 11 11:19 ib_logfile0 524288000 Mar 3 08:59 ib_logfile1 524288000 Mar 11 11:19 ib_logfile2 I always see them timestamped like this, with two having identical times, or the same within a minute or two. The particular pair of the three having the same timestamp varies.
I was under the impression that mysql would cycle through these logfiles - e.g. write to logfile0 until it is full, then switch to logfile1 until full, then logfile2.., then logfile0, etc.
This doesn't appear to be the case. Has anyone run across this before?
(My goal is to reduce the size of the logfiles so that the time between switching is on the order of a couple hours rather than days.)
Thanks, John
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