On Fri, 2012-12-28 at 11:58 +0900, ARAI Shun-ichi wrote: > In <BB9A0F28-A902-4FE4-BA58-A66EA93290F8@xxxxxxxxx>; > Elmer Zhang <freeboy6716@xxxxxxxxx> wrote > as Subject "Re: Which version of nilfs do you use?": > > > There is more than 2TB of data and a large number of databases, tables in our MySQL service. The conventional cold backup methods can not meet our needs. So we are trying to find some other methods. > > I posted report mail about the "bad btree node" error in 2012-11-30, > I told about VirtualBox. > When I met the error first, virtual disk file (approx. 16GB) was in > NILFS FS. > > Zhang's DB is large. Perhaps there are files which has large size, I think. > And these files are updated frequently. > > Can the common point (file size, update) cause inconsistency? I think that it can be a synchronization issue. But it needs to investigate the situation more deeply. As I can see, it is using 8 CPUs in the case of the issue and it takes place frequent update. So, it can be a ground for good issue reproducibility, from my point of view. With the best regards, Vyacheslav Dubeyko. > -- > To unsubscribe from this list: send the line "unsubscribe linux-nilfs" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-nilfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
