Opcache Problem

mahdy_sharifi

• January 05, 2015 02:18

Hello : When I increase "opcache.memory_consumption" over 1024, webserver (litespeed) stopped and following error occur : Fatal Error Unable to allocate shared memory segment of 1610612736 bytes: shmat: Cannot allocate memory (12) Our server setting : kernel.msgmnb = 65536 kernel.msgmax = 65536 kernel.shmmax = 68719476736 kernel.shmall = 4294967296 Can you help ? Regards

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  cPanelMichael

  • January 06, 2015 15:42

  Hello :) Could you elaborate further on why you decided to increase that setting? Were you experiencing a specific issue or some type of reduced performance? Thank you.

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  mahdy_sharifi

  • January 06, 2015 15:50

  ]Hello :) Could you elaborate further on why you decided to increase that setting? Were you experiencing a specific issue or some type of reduced performance? Thank you.

  
  Thanks because We have big server and all that 1024 space now full . also server performance not good yet .

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  cPanelMichael

  • January 07, 2015 19:10

  You may want to consult with a qualified system administrator if you do not receive user-feedback on your optimization questions. Thank you.

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  matt1206

  • August 22, 2015 20:29

  Just wanted to chime in on this, I've had the same issue this evening. Unable to allocate more than 1024 when using Litespeed
  2015-08-22 19:58:55.815 [STDERR] Sat Aug 22 19:58:55 2015 (24843): Fatal Error Unable to allocate shared memory segment of 2147483648 bytes: shmat: Cannot allocate memory (12) 2015-08-22 19:58:55.825 [STDERR] Sat Aug 22 19:58:55 2015 (24844): Fatal Error Unable to allocate shared memory segment of 2147483648 bytes: shmat: Cannot allocate memory (12)
  

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  cPanelMichael

  • September 08, 2015 16:14

  Just wanted to chime in on this, I've had the same issue this evening. Unable to allocate more than 1024 when using Litespeed

  
  Are you also using Cloud Linux? If so, you may find this thread helpful:

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