[Lustre-discuss] Questions about OSC cache

[teng wang]

Hi,

I know OSC's buffer is tunable by max_dirty_mb.
Is this max_dirty_mb for each object?
If so, what if max_dirty_mb is reached? Will
the OSC stall until all the data belonging to
this object is flushed, or it will stall until
other object's cache is also flushed? or
The client will only stall for write on the
object whose cache is full but continue
to buffer the dirty data belonging to other objects?

Thanks,
Teng
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