Message Logging policy deployment error troubleshooting

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InvalidProtocol

Error message

Deployment of an API proxy through either the Edge UI or Edge management API fails with this error message:

Error Saving Revision revision_number
Invalid Protocol: invalid_protocol for Syslog handler in policy policy_name.

Example error message

Error Saving Revision 4
Invalid Protocol: HTTP for Syslog handler in policy LogToSyslog.

Example screenshot

Cause

The deployment of the MessageLogging policy policy can fail with this error if the protocol specified within the <Protocol> element is not valid. The valid protocols are TCP and UDP. For sending syslog messages over TLS/SSL, only TCP is supported.

For example, the deployment of the API Proxy fails with this error if you specify HTTP in the <Protocol> element of the MessageLogging Policy as shown below:

<Protocol>HTTP</Protocol>

Diagnosis

1. Identify the MessageLogging policy where the error occurred. You can find this information in the error message. For example, in the following error, the policy name is LogToSyslog:

   Invalid Protocol: HTTP for Syslog handler in policy LogToSyslog.
   

2. In the failed MessageLogging policy configuration check if the protocol specified within the <Protocol> element is valid. If there is an invalid protocol specified, then that's the cause of the error.

   For example, the following policy specifies an invalid protocol.

   <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
   <MessageLogging name="LogToSyslog">
     <Syslog>
       <Message>[3f509b58 tag="{organization.name}.{apiproxy.name}.{environment.name}"] Weather request for WOEID {request.queryparam.w}.</Message>
       <Host>logs-01.loggly.com</Host>
       <Port>514</Port>
       <Protocol>HTTP</Protocol>
       <FormatMessage>true</FormatMessage>
     </Syslog>
     <logLevel>ALERT</logLevel>
   </MessageLogging>
   

   Because the protocol defined within the <Protocol> element is invalid, the deployment of the API Proxy fails with the error:

   Invalid Protocol: HTTP for Syslog handler in policy LogToSyslog.
   

Resolution

Ensure that the protocol defined within the <Protocol> element of the MessageLogging policy is valid. The <Protocol> element supports the following values:

• TCP
• UDP

To correct the example shown above, define a valid protocol within the <Protocol> element:

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<MessageLogging name="LogToSyslog">
  <Syslog>
    <Message>[3f509b58 tag="{organization.name}.{apiproxy.name}.{environment.name}"] Weather request for WOEID {request.queryparam.w}.</Message>
    <Host>logs-01.loggly.com</Host>
    <Port>514</Port>
    <Protocol>TCP</Protocol>
    <FormatMessage>true</FormatMessage>
  </Syslog>
  <logLevel>ALERT</logLevel>
</MessageLogging>

InvalidPort

Error message

Deployment of an API proxy through either the Edge UI or Edge management API fails with this error message:

Error Saving Revision revision_number
Invalid Port: 0 for Syslog handler in policy policy_name.

Example error message

Error Saving Revision 4
Invalid Port: 0 for Syslog handler in policy LogToSyslog.

Example screenshot

Cause

The deployment of the MessageLogging policy can fail with this error if the port number is not specified within the <Port> element or if it is not valid. The port number must be an integer greater than zero.

For example, if the <Port> element is declared as shown below, the deployment of the API proxy fails:

<Port>0</Port>

Diagnosis

1. Identify the MessageLogging policy where the error occurred. You can find this information from the error message. For example, in the following error, the policy name is LogToSyslog:

   Invalid Port: 0 for Syslog handler in policy LogToSyslog.
   

2. In the failed MessageLogging policy check if a valid port number is specified within the <Port> element. If the port number is not defined or is invalid, then that's the cause of the error.

   For example, the following policy specifies an invalid port number:

   <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
   <MessageLogging name="LogToSyslog">
     <Syslog>
       <Message>[3f509b58 tag="{organization.name}.{apiproxy.name}.{environment.name}"] Weather request for WOEID {request.queryparam.w}.</Message>
       <Host>logs-01.loggly.com</Host>
       <Port>0</Port>
       <Protocol>TCP</Protocol>
       <FormatMessage>true</FormatMessage>
     </Syslog>
     <logLevel>ALERT</logLevel>
   </MessageLogging>
   

   Because the port number defined within the <Port> element is invalid, the deployment of the API Proxy fails with the error:

   Invalid Port: 0 for Syslog handler in policy LogToSyslog.
   

Resolution

Ensure that a port number is defined within the <Port> element of the MessageLogging policy. It has to be an integer greater than zero.

To correct the example shown above, define a valid port number within the <Protocol> element.

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<MessageLogging name="LogToSyslog">
  <Syslog>
    <Message>[3f509b58 tag="{organization.name}.{apiproxy.name}.{environment.name}"] Weather request for WOEID {request.queryparam.w}.</Message>
    <Host>logs-01.loggly.com</Host>
    <Port>514</Port>
    <Protocol>TCP</Protocol>
    <FormatMessage>true</FormatMessage>
  </Syslog>
  <logLevel>ALERT</logLevel>
</MessageLogging>