>80% futex from strace on mongod

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dhsieh

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Jul 27, 2012, 4:18:13 PM7/27/12
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We have observed unusual high CPU usage on master mongod. Strace
reported > 80% of total time spent in futex calls. Wonder what might
contribute to this phenomenon?

dhsieh

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Jul 27, 2012, 5:09:39 PM7/27/12
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I wonder if db.serverStatus()'s globalLock.ratio value may have any
bearing to futext(0 calls length?

Eran Uzan

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May 27, 2018, 8:54:28 AM5/27/18
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This happen to me us too anyone know whats the solution for this?

Kevin Adistambha

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Jun 4, 2018, 2:34:35 AM6/4/18
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Hi Eran

This happen to me us too anyone know whats the solution for this?

Please note that you’re replying to a thread from 2012. There are many improvements and large differences between MongoDB today and MongoDB in 2012.

If you’re having issues, please open a new thread with:

  • What is your exact issue, and what does the mongod logs show during the issue
  • What is your MongoDB version and your OS version
  • Your topology details (standalone, replica set, sharded cluster)
  • Can the issue be reproduced reliably, and how does it hinder your operation

Best regards
Kevin

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