Known issues: Difference between revisions

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(/localscratch resolves to on-node ssd on both clusters.)
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== Intro == <!--T:1-->
* Please report issues to [mailto:support@computecanada.ca support@computecanada.ca]


== Shared issues == <!--T:2-->
<!--T:15-->
# The CC slurm configuration preferentially encourages whole-node jobs. Users should if possible request whole-nodes rather than per-core resources. See [[Job_scheduling_policies#Whole_nodes_versus_cores;|Job Scheduling - Whole Node Scheduling]] ([[User:Pjmann|Patrick Mann]] ([[User talk:Pjmann|talk]]) 20:15, 17 July 2017 (UTC))
Problems that affect many users and are being investigated, such as a cluster-wide malfunction or outage, are on [https://status.alliancecan.ca/ the Alliance Status page]. This "Known issues" page describes problems that affect many users but that may take some time to repair, or are not planned for repair at this time. Problems that only affect a specific software package are described on the wiki page for that software package.  
# Quotas on <code>/project</code> are all 1 TB. The Storage National team is working on a project/RAC based schema. Fortunately Lustre have announced group-based quotas but that will need installation. ([[User:Pjmann|Patrick Mann]] ([[User talk:Pjmann|talk]]) 20:12, 17 July 2017 (UTC))
# SLURM epilog does not fully clean up processes from ended jobs, especially if the job did not exit normally.    ([[User:Gbnewby|Greg Newby]]) Fri Jul 14 19:32:48 UTC 2017)
# Email from graham and cedar is still undergoing configuration. Therefore email job notifications from Slurm are failing. ([[User:Pjmann|Patrick Mann]] ([[User talk:Pjmann|talk]]) 17:17, 26 June 2017 (UTC))
#* Cedar email is working now ([[User:Pjmann|Patrick Mann]] ([[User talk:Pjmann|talk]]) 16:11, 6 July 2017 (UTC))
#* Graham email is working
# The SLURM 'sinfo' command yields different resource-type detail on graham and cedar.    ([[User:Gbnewby|Greg Newby]]) 16:05, 23 June 2017 (UTC))
# The status page at http://status.computecanada.ca/ is not updated automatically yet, so does not necessarily show correct, current status.
# "Nearline" capabilities are not yet available (see https://docs.computecanada.ca/wiki/National_Data_Cyberinfrastructure for a brief description of the intended functionality)
#* Update July 17: still not working. If you need your nearline RAC2017 quota then please ask [mailto:support@computecanada.ca CC support]. ([[User:Pjmann|Patrick Mann]] ([[User talk:Pjmann|talk]]) 20:45, 17 July 2017 (UTC))
# Operations will occasionally time out with a message like "Socket timed out on send/recv operation" or "Unable to contact slurm controller (connect failure)". As a temporary workaround, attempt to resubmit your jobs/commands, they should go through in a few seconds. ([[User:Nathanw|Nathan Wielenga]]) 08:50, 18 July 2017 (MDT))
# Auto-creation of project directories such as /project/$USER was an interim solution. Soon there will be /project/gid where gid is the project group identifier.  This will be symlinked to /project/projects/pname where pname is the "friendly" project (RAPI) name).  And then, /project/gid/$USER can be where user subdirectories for that project will live. Note that quotas in /project are project-based, not user-based.  ([[User:Gbnewby|Greg Newby]]) Thu Jul 20 00:45:00 UTC 2017)


== Cedar only == <!--T:3-->
==Report an issue== <!--T:1-->
*
Please report issues to the [[Technical Support|technical support]] team.


== Graham only == <!--T:4-->
==Shared issues== <!--T:2-->
The [https://status.alliancecan.ca/ status page] is updated manually, so there may be a delay between when a problem begins and when it is posted to the status page.


* no network topology information in the scheduler
===Scheduler issues=== <!--T:6-->
**Provisional network topology information has been added to the config (July 20 | Nathan Wielenga)
 
<!--T:14-->
No known issues.
 
===Quota and filesystem issues=== <!--T:7-->
 
====Missing project folder==== <!--T:11-->
Upon creation of a new account for a Principal Investigator, the [[Project layout|<code>/project</code>]] storage space might not be allocated until the next business day.
 
==Cluster-specific issues== <!--T:17-->
 
===Béluga=== <!--T:16-->
No known issues.
 
===Cedar=== <!--T:3-->
No known issues.
 
===Graham=== <!--T:4-->
Graham's /scratch is often slow; it will be replaced soon.
 
===Narval=== <!--T:18-->
No known issues.


== Other issues == <!--T:5-->
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Latest revision as of 18:06, 25 October 2024

Other languages:

Problems that affect many users and are being investigated, such as a cluster-wide malfunction or outage, are on the Alliance Status page. This "Known issues" page describes problems that affect many users but that may take some time to repair, or are not planned for repair at this time. Problems that only affect a specific software package are described on the wiki page for that software package.

Report an issue

Please report issues to the technical support team.

Shared issues

The status page is updated manually, so there may be a delay between when a problem begins and when it is posted to the status page.

Scheduler issues

No known issues.

Quota and filesystem issues

Missing project folder

Upon creation of a new account for a Principal Investigator, the /project storage space might not be allocated until the next business day.

Cluster-specific issues

Béluga

No known issues.

Cedar

No known issues.

Graham

Graham's /scratch is often slow; it will be replaced soon.

Narval

No known issues.

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