Getting org.springframework.web.client.HttpClientErrorException: 409 Conflict on DELETE ProcessGroup

[Nirmal Kumar]

Hi All,

I am getting the following exception *intermittently* when firing a DELETE 
request for deleting the Process group:
http://xxx.xxx.xxx.xxx:9091/nifi-api/process-groups/103111c4-123b-14f9-a794-14795038dbdf?version=0

org.springframework.web.client.HttpClientErrorException: 409 Conflict
        at 
org.springframework.web.client.DefaultResponseErrorHandler.handleError(DefaultResponseErrorHandler.java:91)
 ~[nifi-util-1.0.0.jar:na]
        at 
org.springframework.web.client.RestTemplate.handleResponseError(RestTemplate.java:615)
 ~[nifi-util-1.0.0.jar:na]
        at 
org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:573) 
~[nifi-util-1.0.0.jar:na]
        at 
org.springframework.web.client.RestTemplate.execute(RestTemplate.java:529) 
~[nifi-util-1.0.0.jar:na]
        at 
org.springframework.web.client.RestTemplate.delete(RestTemplate.java:401) 
~[nifi-util-1.0.0.jar:na]

I am using Nifi 1.0.0 version.

Not sure if setting these timeout will help here:
          public RestTemplate restTemplate() {
        return new RestTemplate(clientHttpRequestFactory());
    }

    private ClientHttpRequestFactory clientHttpRequestFactory() {
        HttpComponentsClientHttpRequestFactory factory = new 
HttpComponentsClientHttpRequestFactory();
        factory.setReadTimeout(2000);
        factory.setConnectTimeout(2000);
        return factory;
    }

Any pointers here would be great.

Thanks,
-Nirmal


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