[lustre-discuss] File locking errors.

[Jones, Peter A]

Prentice

Do you know which version of Lustre is in use?

Peter




On 2018-02-15, 9:02 AM, "lustre-discuss on behalf of Prentice Bisbal" <lustre-discuss-bounces at lists.lustre.org on behalf of pbisbal at pppl.gov> wrote:

>Hi.
>
>I'm an experience HPC system admin, but I know almost nothing about 
>Lustre administration. The system admin who administered our small 
>Lustre filesystem recently retired, and no one has filled that gap yet. 
>A user recently reported they are now getting file-locking errors from a 
>program they've run repeatedly on Lustre in the past. When the run the 
>same program on an NFS filesystem, the error goes away. I've 
>cut-and-pasted the error messages below.
>
>Since I have real experience as a Lustre admin, I turned to google, and 
>it looks like it might be that the file-locking daemon died (if Lustre 
>has a separate file-lock daemon), or somehow file-locking was recently 
>disabled. If that is possible, how do I check this, and restart or 
>re-enable if necessary?  I skimmed the user manual, and could not find 
>anything on either of these issues.
>
>Any and all help will be greatly appreciated.
>
>Some of the error messages:
>
>HDF5-DIAG: Error detected in HDF5 (1.10.0-patch1) MPI-process 9:
>   #000: H5F.c line 579 in H5Fopen(): unable to open file
>     major: File accessibilty
>     minor: Unable to open file
>   #001: H5Fint.c line 1168 in H5F_open(): unable to lock the file or 
>initialize file structure
>     major: File accessibilty
>     minor: Unable to open file
>   #002: H5FD.c line 1821 in H5FD_lock(): driver lock request failed
>     major: Virtual File Layer
>     minor: Can't update object
>   #003: H5FDsec2.c line 939 in H5FD_sec2_lock(): unable to flock file, 
>errno = 38, error message = 'Function not implemented'
>     major: File accessibilty
>     minor: Bad file ID accessed
>Error: couldn't open file HDF5-DIAG: Error detected in HDF5 
>(1.10.0-patch1) MPI-process 13:
>   #000: H5F.c line 579 in H5Fopen(): unable to open file
>     major: File accessibilty
>     minor: Unable to open file
>   #001: H5Fint.c line 1168 in H5F_open(): unable to lock the file or 
>initialize file structure
>     major: File accessibilty
>     minor: Unable to open file
>   #002: H5FD.c line 1821 in H5FD_lock(): driver lock request failed
>     major: Virtual File Layer
>     minor: Can't update object
>   #003: H5FDsec2.c line 939 in H5FD_sec2_lock(): unable to flock file, 
>errno = 38, error message = 'Function not implemented'
>     major: File accessibilty
>     minor: Bad file ID accessed
>
>-- 
>Prentice
>
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