Re: [Qemu-devel] [PATCH v4 2/2] block/quorum: add simple read pattern support

2014-08-14 Thread Liu Yuan
On Thu, Aug 14, 2014 at 01:09:32PM +0200, Benoît Canet wrote: > The Thursday 17 Jul 2014 à 13:18:56 (+0800), Liu Yuan wrote : > > This patch adds single read pattern to quorum driver and quorum vote is > > default > > pattern. > > > > For now we do a quorum vote on all the reads, it is designed f

Re: [Qemu-devel] [PATCH v4 2/2] block/quorum: add simple read pattern support

2014-08-14 Thread Benoît Canet
The Thursday 17 Jul 2014 à 13:18:56 (+0800), Liu Yuan wrote : > This patch adds single read pattern to quorum driver and quorum vote is > default > pattern. > > For now we do a quorum vote on all the reads, it is designed for unreliable > underlying storage such as non-redundant NFS to make sure

Re: [Qemu-devel] [PATCH v4 2/2] block/quorum: add simple read pattern support

2014-08-14 Thread Liu Yuan
On Tue, Aug 12, 2014 at 10:41:28AM +0800, Liu Yuan wrote: > On Mon, Aug 11, 2014 at 02:31:43PM +0200, Benoît Canet wrote: > > The Thursday 17 Jul 2014 à 13:18:56 (+0800), Liu Yuan wrote : > > > This patch adds single read pattern to quorum driver and quorum vote is > > > default > > > pattern. > >

Re: [Qemu-devel] [PATCH v4 2/2] block/quorum: add simple read pattern support

2014-08-11 Thread Liu Yuan
On Mon, Aug 11, 2014 at 02:31:43PM +0200, Benoît Canet wrote: > The Thursday 17 Jul 2014 à 13:18:56 (+0800), Liu Yuan wrote : > > This patch adds single read pattern to quorum driver and quorum vote is > > default > > pattern. > > > > For now we do a quorum vote on all the reads, it is designed f

Re: [Qemu-devel] [PATCH v4 2/2] block/quorum: add simple read pattern support

2014-08-11 Thread Benoît Canet
The Thursday 17 Jul 2014 à 13:18:56 (+0800), Liu Yuan wrote : > This patch adds single read pattern to quorum driver and quorum vote is > default > pattern. > > For now we do a quorum vote on all the reads, it is designed for unreliable > underlying storage such as non-redundant NFS to make sure

Re: [Qemu-devel] [PATCH v4 2/2] block/quorum: add simple read pattern support

2014-08-11 Thread Liu Yuan
On Thu, Jul 17, 2014 at 01:18:56PM +0800, Liu Yuan wrote: > This patch adds single read pattern to quorum driver and quorum vote is > default > pattern. > > For now we do a quorum vote on all the reads, it is designed for unreliable > underlying storage such as non-redundant NFS to make sure data

[Qemu-devel] [PATCH v4 2/2] block/quorum: add simple read pattern support

2014-07-16 Thread Liu Yuan
This patch adds single read pattern to quorum driver and quorum vote is default pattern. For now we do a quorum vote on all the reads, it is designed for unreliable underlying storage such as non-redundant NFS to make sure data integrity at the cost of the read performance. For some use cases as