Meaning of storefileIndexSize

[Renaud Delbru]

Hi,

I would like to understand the meaning of the storefileIndexSize metric, 
could someone point me to a definition or explain me what does that mean ?

Also, we are performing a large table import (90M rows, size of the row 
varying between hundreds of kb to 8 MB), and we are encountering memory 
problem (OOME). My observation is that it always happens after a while, 
when the storefileIndexSize starts to be large (> 500). Is there a way 
to reduce it ?

Thanks,
--
Renaud Delbru