Too Many Open Connections Error Occurring In the Gateway of Oracle API Gateway (Doc ID 2748742.1)

Last updated on OCTOBER 07, 2022

Applies to:

Symptoms

Oracle API Gateway shows an error on the Connect to URL filter:

"Too Many Open Connections" ,

An attempt was made to increase the ulimit "Open Files" at the OS level but the problem persists.

The error being seen in the Gateway trace file is similar to the following:

SOAPAction: process

X-Forwarded-For: xxx.xxx.xxx.xxx

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
...
</soapenv:Envelope>

ERROR transient failure connecting to remote: <HOST:<PORT>: connection failedtoo many open connections
ERROR The message [<ID>] logged Failure at <TIME> with log description: Failed to route request to endpoint.
ERROR Filter that caused failure: Connect to URL
ERROR Policy '<POLICY>' {
ERROR Filter 'Call '<POLICY SHORTCUT>' Status: PASSED
ERROR Policy '<POLICY SHORTCUT>' {
ERROR Filter '<FILTER>' Status: PASSED
}
ERROR Filter 'Connect to URL' Status: FAILED
}
Connect to URL filter failed

DATA HTTP/1.1 500 ERROR

Cause

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