CLEANERS configuration parameter

Use the CLEANERS configuration parameter to specify the number of page-cleaner threads available during the database server operation. By default, the database server always runs one page-cleaner thread. A general guideline is one page cleaner per disk drive. The value specified has no effect on the size of shared memory.

Based on the server work load, the server automatically attempts to optimize AIO VPs and page-cleaner threads and adjust the number of AIO VPs and page-cleaner threads upward when needed. Automatic AIO VP and page-cleaner thread tuning can be disabled using the environmental variable IFX_NO_AIOVP_TUNING or the onmode -wm utility option.

onconfig.std value
CLEANERS 8
values
1 - 128
units
Number of page-cleaner threads
takes effect
After you edit your onconfig file and restart the database server.

Copyright© 2019 HCL Technologies Limited