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Re: [HTCondor-users] HTCondor-CE memory issue

Hi Carlos,

We're running the same versions of htcondor and htcondor-ce as you and don't see an issue.

What OS are you running on?

The only memory-usage issue I'm aware of is when the ce deals with re-delegations, after a large number of submissions in a small period of time.

This is due to the submission pattern of a particular vo and has been fixed in 8.5.8. The memory returns back to normal after the re-delegations finish

However, it doesn't sound like your issue. Have you taken a look at smaps to see where the memory usage is coming from?

For reference all our CEs are 16GB RAM, which is comfortable. I've just checked and we don't see the rss usage on the schedd process of our busiest schedd go above 600MB-1GB under normal circumstances

Cheers, Iain
From: HTCondor-users [htcondor-users-bounces@xxxxxxxxxxx] on behalf of Carles Acosta [cacosta@xxxxxx]
Sent: 22 November 2016 09:35
To: HTCondor-Users Mail List
Subject: [HTCondor-users] HTCondor-CE memory issue

Dear all,

Our HTCondor-CE is eating up all the memory of the system, constantly increasing. When the memory used arrives to 65-70% (it's a 32GB RAM machine), we start to see the next errors in the SchedLog:

Create_Thread: fork() failed: Cannot allocate memory (12)
ForkWorker::Fork: Fork failed

And all the submitted jobs remain in Hold state (Hold reason: Spooling input data files).

The issue is solved reloading the condor-ce services but, then, the memory starts to increase again, constantly and slowly.

I would like to know if you are facing similar problems with your HTcondor-CEs and how you solve them.

Nowadays, we are running HTCondor 8.5.6 and HTCondor-CE 2.0.7-1.

Thank you in advance.

Best regards,


Carles Acosta i Silva
PIC (Port d'Informació Científica)
Campus UAB, Edifici D
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Tel: +34 93 581 33 22
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