Hi Donald,
rbh-config enable_chglogs is actually an helper to perform the
changelog_register command you run by yourself
+ it sets an appropriate changelog mask. Is must be run on a MDS, that's why
you get an error when you run it on a client.
So, has you registered by yourself, don't forget
Hi
Fileclasses are matched/rematched when an entry is discovered or updated, which
occurs when:
- getting an update from changelog about an entry
- (re)scanning the filesystem
- checking if an entry is matching a policy rule (during policy run)
So it is recommended to think about your
Hello,
Indeed, there is an issue with Lustre changelog UNLINK records that never
report actual deletion (UNLINK_LAST flag is not set) when a file is still
opened when deleted.
I don't know if there is already a Jira about that.
Thomas
-Message d'origine-
De : Davide Tacchella
Hello,
No, there is not such option. You can sum them afterward. The --csv option can
help you scripting it.
Another possibility if you need stats for a single fileclass is to precise a "
-C" option
e.g
rbh-report --class-info -C "big_files"
In this can the summary line at the end of
> 2019/07/17 14:20:09 robinhood@mrh0[40836/3] ChangeLog | ERROR:
> llapi_changelog_clear("lustre01-MDT0001", "cl1", 42031384423) returned -22
Hello,
Did you register a changelog reader on each MDT?
Here it seams your filesystem has at least 2 MDTs (MDT0001 must be the second
one).
Regards,
Hello Mike,
In 2014, it was robinhood version 2.5.
Robinhood is now at version 3.1.5. This version (3.0) brings generic policies
(you can schedule/execute any action on the filesystem) and advanced action
scheduling options. This version is now stable, so there is no big change in
this branch
jet : Re: Nested fileclass behavior
>
> Well that didn't work and resulted in some data loss. I check and the file
> class
> shows no entries. I did run an rbh-config reset classes and rescanned the
> db. I
> dropped the whole db and and remaking it at the moment.
>
>
Hello Matt,
Yes we do that on CEA sites.
1 daemon for changelogs (possibly, 1 per MDT), and 1 for policy runs, with
distinct systemd services.
We noticed significant performance improvements with such split (it seems the
memory allocator is less in demand for each instance).
Additionally you
Hello,
Yes it's safe. Ignore_fileclass rules have the priority over other policy rules.
Regards,
Thomas
> -Message d'origine-
> De : Matthew BETTINGER [mailto:matthew.bettin...@external.total.com]
> Envoyé : mardi 14 janvier 2020 23:07
> À : robinhood-support@lists.sourceforge.net
>
Dear all,
A new release of robinhood is available: robinhood 3.1.6.
It can be downloaded from here:
https://sourceforge.net/projects/robinhood/files/robinhood/3.1.6/
This version includes the following fixes and improvements:
- port to RHEL8/CentOS8
- port to latest Lustre code base (2.13.52+)
Hello Loris,
If you want to recompute the fileclass for all entries in the filesystem,
you need to rescan indeed.
Otherwise, fileclasses will be updated over time as entries are updated (when a
changelog is received for an entry, or checked for a policy...).
Regards,
Thomas
a scan?
Cheers,
Loris
"thomas.leibov...@cea.fr" writes:
> Hello Loris,
>
> If you want to recompute the fileclass for all entries in the
> filesystem, you need to rescan indeed.
> Otherwise, fileclasses will be updated over time as entries are updated (when
> a ch
LAD'21 - Lustre Administrators and Developers Workshop
September 28th-30th, 2021
Online webinar + chat platform
We are glad to announce LAD’21!
This event will be a great opportunity for worldwide Lustre administrators and
developers to gather and exchange their experiences, developments,
LAD'21 - Lustre Administrators and Developers Workshop
September 28th-30th, 2021
Online webinar + chat platform
We are glad to announce LAD'21!
This event will be a great opportunity for worldwide Lustre administrators and
developers to gather and exchange their experiences, developments,
Hello Ramon,
“robinhood --scan –once” exit after scanning is complete.
If “gstack” on the process is stuck too, likely the process is stuck on Lustre.
Check dmesg or run “crash” to see where it is stuck.
Regards
Thomas
De : Ramon Williamson [mailto:ramon.williamson...@gmail.com]
Envoyé : jeudi
Hello Loris,
Looking at the code, it seems that action errors are only reported when log
level is DEBUG or more.
As a survey, what would be the expected behavior for you:
- report action errors to the log file with another level of logging
- report actions errors to the report_file, as it is
Hi,
You may have sparse files, or released files if you use the Lustre HSM feature.
Regards,
Thomas
De : Kumar, Amit [mailto:ahku...@mail.smu.edu]
Envoyé : mercredi 3 mars 2021 20:20
À : robinhood-support@lists.sourceforge.net
Objet : [robinhood-support] rbh-report: volume Buggy output?
Hi
Hello Nathan,
Request on subtrees of the filesystem is what make the query very slow because
this request builds and matches the path of every entry in the DB.
A possible solution we can imagine to optimize your query is to define
fileclasses for the parts of the filesystem you want to query.
Dear Lustre community,
Registration for LAD'21 is now open!
It will take place on a Zoom webinar platform on September 28, 29 and 30.
To provide maximum coverage of the different time zones, sessions will be
broadcast twice a day, once at 8AM UTC (10AM CEST), and once at 4PM UTC (6PM
CEST).
Only one month left to propose a presentation for LAD21!
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Topics
We invite members of
I forgot to add the mailing list in cc.
De : LEIBOVICI Thomas 601315
Envoyé : mardi 21 septembre 2021 17:34
À : 'Nathan Gregg - NOAA Affiliate'
Cc : Adam Dorsey - NOAA Affiliate
Objet : RE: [robinhood-support] Robinhood Reports Inconsistency?
Dear Nathan,
By default top-users is sorted by size.
Dear William,
The robinhood 3 documentation is here:
https://github.com/cea-hpc/robinhood/wiki/robinhood_v3_admin_doc
For POSIX, just ignore the Lustre-specific features (changelogs, HSM and
OST-related options...)
All the documentation is listed here:
Dear Lustre community members,
We are pleased to inform you that registration for the LAD 2022 is open!
To register, go to this URL: http://lad.eofs.eu/register.php
The early bird rate of €350 is available until September 4th, and will increase
to €430 thereafter.
Call for presentations
You
Dear Lustre community members,
A little update about LAD’22:
Registration
Remember to register to LAD 2022 before September 4th to take advantage of the
early bird rate of €350.
The registration cost will increase to €430 thereafter. Also, we need to tell
the caterer the number of attendees
Dear Lustre users, admins and developers,
Registration for LAD'22 will close at the end of this week, on September 18th,
so if you want to attend unique presentations about Lustre and enjoy fine
French gastronomic dishes,
it is in still time to register!
Register here: http://lad.eofs.eu
For
Dear Rémi,
Happy to see a new deployment of RobinHood in France in a sister company of CEA
:)
Here are some answers to your questions:
1) I never measured precisely the impact of changelogs, but I'd say it is not
significant and not noticeable by users. AFAIR, I saw some presentations
Dear Russell,
You can check in Robinhood Logs if it reports statistiques about the 4
changelog readers.
About cross mdt migration, I talk about using “lfs migrate –m” to move files
betweens MDTs.
Regards,
Thomas
De : Russell Jones
Envoyé : mercredi 26 juillet 2023 20:00
À : thomasleibovici
LAD'23 - Lustre Administrators and Developers Workshop
October 04-06, 2023
Face-to-Face event, Bordeaux, France
The Lustre Administrators & Developers workshop is a great opportunity for
worldwide Lustre administrators and developers to gather and exchange their
experiences, developments,
Dear Niels,
Please prioritize using English on this mailing list so that the community of
other users can respond to you or benefit from the provided answers.
Did you take a look at the “rbh-find –printf” option that potentially allows
diplaying any attribute present in the robinhood’s
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