Error: User process limit too low for gateway user on some versions of the API Gateway and API Developer Portal appliance

Document ID : KB000004178
Last Modified Date : 14/02/2018
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Issue:

One possible symptom is error messages like the following:
java.lang.OutOfMemoryError: unable to create new native thread
Failed to create a thread

Environment:
Affected Products and VersionsThe following products are potentially impacted:CA API Gateway, versions 7.x -- 8.2.xCA API Developer Portal, versions 2.6 -- 3.0
Cause:

To determine whether a specific node is impacted, please do the following:

1.  Log in to the node as root.
2.  Run "su - gateway".
3.  Run "ulimit -u"
-  If the the output is "31768", the node is not impacted.  No actions are needed.
-  If the output is "1024" or "5120", the node is impacted.  Correct the file limit by following the Remediation step below.

Resolution:

Apply the most recent Platform Update file to the impacted node which corresponds to your Gateway build: CA API Management Solutions & Patches

NOTE: For Gateway build info on Portal systems, login to the Gateway via ssh as ssgconfig to get the Gateway build number.