What are recommended requirements of SWAP, RAM and Disk space for Plesk Obsidian

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  Ehud Ziegelman June 19, 2022 09:30 (Edited June 19, 2022 09:39)

  Hi Yaroslav Tarasov,

  Running: 

  sudo swapon --show
  NAME       TYPE  SIZE USED PRIO
  /pleskswap file 1024M   0B   -2

   

  From the naming, it seems as something Plesk was in charge of.

  I also can see Plesk recommends half the RAM be used for SWAP, as mentioned above.

  May I ask for a Plesk clear guidance of how to increase the swap value, possibly by creating a new swap file, and removing the current one?

   

  Note: This could be similar to the below guide, however come from Plesk:

  https://linuxize.com/post/how-to-add-swap-space-on-centos-7/

   

   

  Warning: As can be seen in the below link, it was Plesk that has created the 1GB SWAP, so saying SWAP has nothing to do with Plesk, is not exactly correct:

   

  https://support.plesk.com/hc/en-us/articles/360006291594?page=1#comment_6155926991762

   

   

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  Yaroslav Tarasov June 22, 2022 06:53 (Edited June 23, 2022 06:40)

  Hi @Ehud Ziegelman,

  /pleskswap file is being created by Plesk during the installation when the server lacks RAM capacity. It's not removed after the installation due to the same reason - Plesk and the server can become slow if there is low RAM and Swap.

  If it's required to increase the swap value, I would suggest removing the Plesk swap file using the steps from this article and creating a new swap file as described in many OS-related manuals on the Internet, e.g. the one you've mentioned https://linuxize.com/post/how-to-add-swap-space-on-centos-7/ or https://www.digitalocean.com/community/tutorials/how-to-add-swap-on-centos-7

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  Ehud Ziegelman June 22, 2022 09:06

  Hi Yaroslav Tarasov,

   

  Thanks a lot!

  As Plesk users MIGHT NOT be aware they are using a server with insufficient SWAP memory allocation, I suggest the Plesk Notifications, indicate such a situation, where the indication may also state current RAM server configuration, with the associated 50% amount SWAP RAM allocation recommendation.

  A print screen of the Notification screen I'm referring to, is attached below:

   

  

   

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  Ehud Ziegelman June 22, 2022 09:10

  Hi Yaroslav Tarasov,

   

  By the way..

  The same Notification, can also include a calculation of simultaneous users amount per website and include a suitable recommendation as above, of needed.

   

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  Yaroslav Tarasov June 23, 2022 07:26

  Hi Ehud Ziegelman!

  We already have a monitoring tool where we can check RAM and Swap, please refer to my screenshots. Anyways, thank you for your suggestion!

  

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