Re: [lustre-discuss] Lustre/ZFS snapshots mount error

2018-08-27 Thread Yong, Fan
According to the stack trace, someone was trying to cleanup old empty llogs during mount the snapshot. We do NOT allow any modification during mount snapshot; otherwise, it will trigger ZFS backend BUG(). That is why we add LASSERT() when start the transaction. One possible solution is that, we

Re: [lustre-discuss] Lustre/ZFS snapshots mount error

2018-08-27 Thread Andreas Dilger
It's probably best to file an LU ticket for this issue. It looks like there is something with the log processing at mount that is trying to modify the configuration files. I'm not sure whether that should be allowed or not. Does fab have the same MGS as fsA? Does it have the same MDS node as

[lustre-discuss] Lustre 2.10.5 released

2018-08-27 Thread Peter Jones
We are pleased to announce that the Lustre 2.10.5 Release has been declared GA and is available for download. You can also grab the source from

[lustre-discuss] Lustre/ZFS snapshots mount error

2018-08-27 Thread Kirk, Benjamin (JSC-EG311)
Hi all, We have two filesystems, fsA & fsB (eadc below). Both of which get snapshots taken daily, rotated over a week. It’s a beautiful feature we’ve been using in production ever since it was introduced with 2.10. -) We’ve got Lustre/ZFS 2.10.4 on CentOS 7.5. -) Both fsA & fsB have