Hi, I ran into "writes-starving-reads" problem on a machine with 48G RAM. I have two processes running concurrently: Process 1 copies an 8 GB file from local disk to CEPH. Process 2 copies an 8 GB file from CEPH to local disk. Process 1 finished quickly since the data were cached in memory first. Process 2 was blocked until all the cached data have been written to OSD. (Maybe not all the cached data, but I waited for a long time.) I don't have this problem on a machine with 8G RAM. Has anyone experienced this before or any idea why? Thanks, Henry -- 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
