On Tue, 13 Dec 2016, huang jun wrote: > hi,all > i have a question about pg backfill on erasure pool. > pg0 in erasure pool, which k:m=2:1, > at first, pg0 on osd [1,2,3], after osd.4 added, > the pg0 is now distribute to osd [1,2,4], > for replicated pool, it will do backfill from primary(osd.1) to osd.4, > for erasure code pool, the primary osd.1 needs to read the data chunks > from osd.1 and osd.2, > then decode and push the parity chunk to osd.4, > in the above case, the osd.3 is up and contain the parity chunk, > why dont let osd.3 push the parity chunk to osd.4? I don't think there is any reason why we couldn't... it just hasn't been implemented. Sam? sage -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
