On Wed, Sep 20, 2017 at 11:42 AM, 陶冬冬 <tdd21151186@xxxxxxxxx> wrote: > Hi Zheng, > > we have been suffering from an inconsistent issue in cephfs : > > kernel version : 3.1.0 > ceph version: 10.2.5 > > we are using the kernel client to mount cephfs > we mount the ceph filesystem on two machines all with kernel 3.1.0, > but the strange thing is that the content of one same file is different from the two machines. > and we are certain one machine has the correct content. > > we didn’t know the way to reproduce it , and we don’t have the log here. > i’m wondering maybe it’s because there is some bug within kernel client, so that the client think > it has enough capability to read it just from it’s buffer, no need to get the cap from mds, so it didn’t get the latest content. > > since the kernel is too old, may be you have fixed this kind inconsistent issues ? we fixed a splice issue about 1 year ago, it could cause inconsistent data when multiples client read/write a file at the same time. The issue the is the only bug I remember, that can cause inconsistent data. Please try recent kernel, check if the issue still happen. Regards Yan, Zheng > > Regards, > Dongdong > -- 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
