Journaler
- journaler_write_head_interval
Interval in seconds between journal header updates (to help bound replay time)
- type
int- default
15
- journaler_prefetch_periods
Number of striping periods to prefetch while reading MDS journal
- type
uint- default
10- min
2
- journaler_prezero_periods
Number of striping periods to zero head of MDS journal write position
- type
uint- default
5- min
2