satellite 6Mongod process with wiredTiger engine consumes half RAM

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Please see this solution https://access.redhat.com/solutions/4505561 at access.redhat.com if you are experiencing these symptoms:

Environment

  • Red Hat Satellite 6
  • mongo configured with wiredTiger mongo engine

Issue

  • mongo updated to use wiredTiger storage engine
  • Sometimes, mongod consumes randomly high memory (up to 1/2 of all RAM)
  • This aggressive memory usage limits other processes or can cause OOM killer to kill mongod
  • Is that high memory usage expected? Is there a way to limit memory footprint of mongod?

Again, see see this solution https://access.redhat.com/solutions/4505561

Regards,
RJ

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