Cannot borrow client error while updating enable_email_domain property to true

[dishelt]

Description

Hi there!, hope everything goes well,

I updated the property enable_email_domain in deployment.toml for accepting usernames as emails. After that I received the next trace:

Can you please help me?. What other configuration is needed?.

I shared the output logs.

Steps to Reproduce

• Setup enable_email_domain in deployment.toml

Affected Component

APIM

Version

APIM 4.1 as control plane

Environment Details (with versions)

No response

Relevant Log Output

`DataBridge user [email protected] connected
[2022-07-11 19:32:07,271] ERROR - DataEndpointConnectionWorker Error while trying to connect to the endpoint. Cannot borrow client for ssl://172.20.0.2:9712.
org.wso2.carbon.databridge.agent.exception.DataEndpointLoginException: Cannot borrow client for ssl://172.20.0.2:9712.
        at org.wso2.carbon.databridge.agent.endpoint.DataEndpointConnectionWorker.connect(DataEndpointConnectionWorker.java:145) ~[org.wso2.carbon.databridge.agent_5.2.41.jar:?]
        at org.wso2.carbon.databridge.agent.endpoint.DataEndpointConnectionWorker.run(DataEndpointConnectionWorker.java:59) ~[org.wso2.carbon.databridge.agent_5.2.41.jar:?]
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515) ~[?:?]
        at java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[?:?]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) ~[?:?]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) ~[?:?]
        at java.lang.Thread.run(Thread.java:829) [?:?]
Caused by: org.wso2.carbon.databridge.agent.exception.DataEndpointLoginException: Error while trying to login to data receiver :/172.20.0.2:9712
        at org.wso2.carbon.databridge.agent.endpoint.binary.BinaryDataEndpoint.login(BinaryDataEndpoint.java:50) ~[org.wso2.carbon.databridge.agent_5.2.41.jar:?]
        at org.wso2.carbon.databridge.agent.endpoint.DataEndpointConnectionWorker.connect(DataEndpointConnectionWorker.java:139) ~[org.wso2.carbon.databridge.agent_5.2.41.jar:?]
        ... 6 more
Caused by: org.wso2.carbon.databridge.commons.exception.AuthenticationException: java.lang.NullPointerException
        at jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:?]
        at jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[?:?]
        at jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[?:?]
        at java.lang.reflect.Constructor.newInstance(Constructor.java:490) ~[?:?]
        at org.wso2.carbon.databridge.agent.endpoint.binary.BinaryEventSender.processResponse(BinaryEventSender.java:163) ~[org.wso2.carbon.databridge.agent_5.2.41.jar:?]
        at org.wso2.carbon.databridge.agent.endpoint.binary.BinaryDataEndpoint.login(BinaryDataEndpoint.java:44) ~[org.wso2.carbon.databridge.agent_5.2.41.jar:?]
        at org.wso2.carbon.databridge.agent.endpoint.DataEndpointConnectionWorker.connect(DataEndpointConnectionWorker.java:139) ~[org.wso2.carbon.databridge.agent_5.2.41.jar:?]`

Related Issues

I dont know if there is a related issue like wso2/product-apim#12865

Suggested Labels

No response

[nadeepoornima]

Hi @dishelt,

Have you configured the email username under throttling configurations as follows?[1]

[tenant_mgt]
enable_email_domain= true

[apim.throttling]
username = "$ref{super_admin.username}@carbon.super"

[apim.throttling.policy_deploy]
username = "$ref{super_admin.username}@carbon.super"

[apim.throttling.jms]
username="admin!wso2.com!carbon.super"
password = "$ref{super_admin.password}"

Usually, Above error can happen if you have configured the email as username [1] feature in the API Manager level and without configuring the URL encoded username under the [apim.throttling.jms] block.
The "@" character is a reserved character in the WSO2 messaging component. Therefore, when specifying the username in JMS Connection URL, under apim.throttling.jms.username section in the <API-M_HOME>/repository/conf/deployment.toml file, "@" characters should be replaced by "!" character. An example is shown below.

[apim.throttling.jms] username="admin!wso2.com!carbon.super"

Please verify these configurations on your toml file. If not available, please add and see the issue fixed or not.

[1]. https://apim.docs.wso2.com/en/latest/install-and-setup/setup/security/logins-and-passwords/maintaining-logins-and-passwords/#setup-an-e-mail-login