Lustre is a parallel distributed filesystem designed for Linux clusters
Lustre is a distributed filesystem designed for Linux clusters.
Questions tagged [lustre]
8 questions
4
votes
3 answers
Removing dirs with lots of tiny files on Lustre
I have a dir with a gigantic amount of very small files that I want to remove and simply removing the dir with rm -rf /path/to/the/dir is already taking multiple days.
It might sound strange that this is going slow, but the dir is not a dir on…
Eduardo J. Culpepper
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2
votes
0 answers
How can I fix the error 'Is the MGS running?' when I try to mount FSx for lustre in Vagrant ( Virtualbox, Centos 7 )
I am running openVPN gateway to an AWS VPC. I can normally mount AWS FSx for Lustre on my bare metal CENTOS7 machine using a command like this
sudo mount -t lustre -o noatime,flock 10.1.1.90@tcp:/fsx /fsx
However if I try to do the same thing in a…
openCivilisation
- 223
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- 7
1
vote
2 answers
What does [0x200000401:0x4:0x0] for a file ID signify
I tried to get the id(descriptor) of the file using the DFID which is defined as #define DFID "["DFID_NOBRACE"]" in lustre and got the output as [0x200000401:0x4:0x0]. So what does the fields separted by : in it signify?
Bhagyesh Dudhediya
- 704
- 8
- 19
1
vote
0 answers
What happens to directory entry when a file is renamed
What exactly happens to the directory entry when a file is renamed?
Is it that the entry of the oldfile is flushed and the newfile is replaced at it's place or a completely new entry is made at the end of the directory entry?
Bhagyesh Dudhediya
- 704
- 8
- 19
1
vote
1 answer
Striping a directory in lustre
What exactly happens when a directory has a default layout in lustre?
As far as I know, if a directory has a default layout then whatever striping parameters are set for the directory are applied to the files created in that directory (unless…
Bhagyesh Dudhediya
- 704
- 8
- 19
1
vote
0 answers
File of Doom freezes any computer that attempts interaction
I have a file on an internal server that causes any machine that interacts with it to immediately and irrecoverably freeze. By interaction, I mean just about anything: rm, mv, cp, cat, vi, gedit, less, touch. (ls is fine.) Try any of these commands…
pattivacek
- 111
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0
votes
0 answers
strace with errors on openat syscall with Lustre FS, RHEL 8, overall intermittent latency
Does anyone see what could be causing this intermittent latency? At various times all commands become slow on login, compute and head nodes and only with logins associated with Lustre, i.e., root and local logins do not have this latency. 45 errors…
RobbieTheK
- 123
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- 10
0
votes
1 answer
Lustre and HPC configuration
I have an HPC cluster with 22 nodes, and one head node as a master running Rocks Cluster OS (which is based on CentOS).
The nodes and master communicate with private network (10.10.0.0/16). And we ssh to server with routed public network…
luthfi.imanal
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