How to increase the number of semaphores

Solution Verified - Updated -

Issue

  • Need to increase semaphore array limits for Apache httpd

  • Need to increase maximum number of semaphore sets for a 3rd-party application

  • IBM DB2 database instances goes down with error "Requesting too many semaphores"

Environment

  • Red Hat Enterprise Linux 4
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7

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