Search Engine: Elastic

Article ID: 115974, created on Apr 18, 2013, last review on Jul 14, 2018

  • Applies to:
  • Operations Automation 5.5
  • Operations Automation 5.4
  • Operations Automation 5.3
  • Operations Automation 5.2
  • Operations Automation 5.1
  • Operations Automation 5.0


Provider wants to update limits of a particular Apache website(s), e.g. increase number of processes or memory limit.


The solution below is applicable only for POA versions between 2.9 and 5.4. Starting with POA 5.5, the Apache resource limits can be managed via POA UI. Refer to the POA Provider's Guide and the Parallels Knowledgebase article #117998 for more details.

POA does not allow to update limits of a particular website, Provider may update limits of all Apache websites hosted in a particular customer subscription (webspace) using the instruction below.

Change activation parameters in the Linux Shared Hosting resource type (based on the Physical hosting (Apache) resource class) included in a customer subscription or in a Service Template a customer subscription is based on (parameters defined in a Service Template override ones defined in a resource type).

Use the pem.apache.updateLimits POA OpenAPI request to apply changes to a particular customer subscription. This API method is supported starting from POA 2.9 and updates the following Apache webspace limits:

  • Limit of simultaneous requests
  • Limit of maximum bandwidth allowed per website
  • Limit of used CPU per website
  • Limit of used memory per website
  • Limit number of processes per website

    Follow the steps below to apply changes in the activation parameters in the Apache resource type or Service Template to the existing subscriptions:

  • Log into POA Management Node
  • Create XML file pem.apache.updateLimits.xml on POA MN with the following content:

    <?xml version='1.0'?>

Replace 1000101 with the ID of subscription which has to be updated.

  • Send the request to POA XML RPC server using e.g. curl utility:
# curl -d@pem.apache.updateLimits.xml http://localhost:8440

caea8340e2d186a540518d08602aa065 5356b422f65bdad1c3e9edca5d74a1ae c2898cda1192c88ccc616ade5f670bd6 2554725ed606193dd9bbce21365bed4e c27596ac4fff6cb4c8ec8891dae57001 ac82ce33439a9c1feec4ff4f2f638899 a8cdca46e4357a6e38fded820770e272 25ba5a02b9d70d4212e34c355e881968 e12cea1d47a3125d335d68e6d4e15e07 5b048d9bddf8048a00aba7e0bdadef37

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