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Status Delivered
Workspace Spectrum LSF
Created by Guest
Created on Nov 17, 2015

RELATED IDEAS

reject multiple bmod/bkill's on same array within a time frame

See this idea on ideas.ibm.com

In reference to PMR 59023,019,866 , our LSF cluster has frequently halted and the scheduler spirals down due to a user running too many bmod/bkill on large job arrays. Despite internal training sessions and company wide communications, this issue has continued to occur. Rather than putting in a workaround in the esub to control, we would like IBM to consider improving this through the LSF product itself.

This issue has been reported to IBM multiple times, and the issue always comes down to the system unable to cope with too many bmod/bkill's of a large job array within a short period of time.

From our own testing we see that LSF is able to cope with hundreds of thousands of bmod/bkills if it is just once, but not when it is ran multiple times on a the same large array. We'd like to see the enhancement such that if a big bmod/bkill is submitted and executing, then if another bmod/bkill is issued while the original one is still processing that the LSF intelligently handles the conflict of multiple bmod/bkill's.

  • Guest
    Reply
    |     Oct 3, 2016

    The handling of arrays was significantly enhanced in LSF10

  • Guest
    Reply
    |     Jul 12, 2016

    This issue occurred again and was reported in [PMR 60722,999,866].

  • Guest
    Reply
    |     Jun 30, 2016

    Hi,
    Our cluster has faced this issue once again where a user tried to kill a total of 1.9M jobs (including jobs arrays).

    User has been advised to use "bkill -b " in small increments, but this sort of issue is unavoidable as users will never know the limits of bkill. We have told users to request IT to do the bkill for them, and/or do it in smaller increments, but that does not prevent this type of issue.

    The LSF community woudld greatly appreciate IBM having a fix for this.

  • Guest
    Reply
    |     Jan 18, 2016

    ------- ** PRIVATE ** Comment from RFE Community: unknown (270005N6FU) at unknown on 2015-12-08 10:05:21.591000 #179978 -------
    ------- ** PRIVATE ** Comment from RFE Community: unknown (270005NQKK) at unknown on 2015-12-01 15:20:55.184000 #179579 -------

  • Guest
    Reply
    |     Nov 25, 2015

    Creating a new RFE based on Community RFE #80424 in product Platform LSF.

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