Broadcast on commit and log file sync

Hello All,
I am seeing the following message in lgwr tracefile along with 'log write
time wait time' warnings:

Warning: log write broadcast wait time 3000ms

This is a RAC database (Version 11.1.0.7.9) We are using default BOC SCN scheme.

My question is: In RAC, Can this wait time exacerbate problems of log
file sync waits ? Any known conditions ?

There are few bugs (e.g. 7716356) on MOS pointing to increase in log
file sync waits due to BOC scheme, but i am unable to draw a clear
picture in my mind about the whole mechanism of BOC and how can it
impact log file sync.


Any comments are welcome.


Regards,

Saurabh Manroy


--
http://www.freelists.org/webpage/oracle-l


Other related posts: