I can't tell, any commands I run against the files in question hang 
indefinitely.  It seems very suspicious though.

________________________________
From: Mohr Jr, Richard Frank <[email protected]>
Sent: Tuesday, March 31, 2020 3:41 PM
To: Kurt Strosahl <[email protected]>
Cc: [email protected] <[email protected]>; 
[email protected] <[email protected]>
Subject: [EXTERNAL] Re: [lustre-discuss] Files hanging on lustre clients



> On Mar 31, 2020, at 2:36 PM, Kurt Strosahl <[email protected]> wrote:
>
> an strace on an ls command run against some of these files produced the 
> following:
> getxattr("/volatile/halld/home/haoli/RunPeriod-2017-01/analysis/ver36_Mar27/log/030408/stdout.030408_124.out",
>  "system.posix_acl_default", NULL, 0) = -1 ENODATA (No data available)
> lstat("/volatile/halld/home/haoli/RunPeriod-2017-01/analysis/ver36_Mar27/log/030408/stderr.030408_118.err",
>  {st_mode=S_IFREG|0644, st_size=16979, ...}) = 0
> getxattr("/volatile/halld/home/haoli/RunPeriod-2017-01/analysis/ver36_Mar27/log/030408/stderr.030408_118.err",
>  "system.posix_acl_access", NULL, 0) = -1 ENODATA (No data available)
> getxattr("/volatile/halld/home/haoli/RunPeriod-2017-01/analysis/ver36_Mar27/log/030408/stderr.030408_118.err",
>  "system.posix_acl_default", NULL, 0) = -1 ENODATA (No data available)
> lstat("/volatile/halld/home/haoli/RunPeriod-2017-01/analysis/ver36_Mar27/log/030408/stdout.030408_000.out",

<snip>

> Lustre: lustre19-OST0028-osc-ffff88105fecd000: Connection to lustre19-OST0028 
> (at 172.17.0.99@o2ib) was lost; in progress operations using this service 
> will wait for recovery to complete
> Lustre: lustre19-OST0028-osc-ffff88105fecd000: Connection restored to 
> lustre19-OST0028 (at 172.17.0.99@o2ib)

Of the files listed in the strace above that gave errors, are all those files 
striped across OST0028?

—
Rick Mohr
Senior HPC System Administrator
Joint Institute for Computational Sciences
University of Tennessee




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