Re: [ceph-users] ceph pg level IO sequence

2016-06-23 Thread Anand Bhat
Correct. This is guaranteed. Regards, Anand On Fri, Jun 24, 2016 at 10:37 AM, min fang wrote: > Hi, as my understanding, in PG level, IOs are execute in a sequential way, > such as the following cases: > > Case 1: > Write A, Write B, Write C to the same data area in a PG --> A Committed, > then

[ceph-users] ceph pg level IO sequence

2016-06-23 Thread min fang
Hi, as my understanding, in PG level, IOs are execute in a sequential way, such as the following cases: Case 1: Write A, Write B, Write C to the same data area in a PG --> A Committed, then B committed, then C. The final data will from write C. Impossible that mixed (A, B,C) data is in the data a