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Ensure the hostname of the server to which you are trying to connect can be resolved so that external adapters can successfully connect to these sources. You may be trying to connect to the Event Stream Processor server or other external sources.

Context

To avoid running into an error message like this when running an external adapter, use the ping command to verify that the hostname can be resolved.
Failed call to:https://<ESP hostname>:61308/RPC2 (Failed to read server's response: <ESP hostname>) java.io.IOException: Failed call to:https://<ESP hostname>:61308/RPC2 (Failed to read server's response: <ESP hostname>)
This error is an example of the Event Stream Processor server not being resolved.

If the hostname cannot be resolved:

Procedure

  1. Determine the IP address of the host on which the server is running. For example, if you want to determine the IP address of the Event Stream Processor server host, run this command from that machine:
    nslookup <ESP hostname>
  2. Add the following line to C:\Windows\System32\drivers\etc\hosts (Windows) or /etc/hosts (UNIX):
    <ipaddress of server hostname>        <Server hostname>