UIMAPI doesn't return groups and is unstable

Products

• DX Unified Infrastructure Management (Nimsoft / UIM)

Issue/Introduction

1)Umapi does not return groups. After requesting <server>/uimapi/groups gives error  500 - internal server error. Other requests  work.

2)Uimapi stops working. In AC, wasp and uimapi as running. Have to  stop uimapi and start it again, then it works for some time. This happens several times a week

uimapi log exceptions:

2022-09-29 09:10:43,497 WARN  org.springframework.web.servlet.mvc.method.annotation.ExceptionHandlerExceptionResolver:doResolveHandlerMethodException:392 [https-jsse-nio-443-exec-6]   - Failed to invoke @ExceptionHandler method: public org.springframework.http.ResponseEntity<?> com.ca.uimapi.services.controller.RestWsBase.handleException(java.lang.Exception)
org.springframework.http.converter.HttpMessageNotWritableException: Could not write JSON: Broken pipe; nested exception is com.fasterxml.jackson.core.JsonGenerationException: Broken pipe

Caused by: com.fasterxml.jackson.core.JsonGenerationException: Broken pipe
    at com.fasterxml.jackson.dataformat.xml.util.StaxUtil.throwAsGenerationException(StaxUtil.java:51)
    at com.fasterxml.jackson.dataformat.xml.ser.ToXmlGenerator.flush(ToXmlGenerator.java:1271)
    at com.fasterxml.jackson.databind.ObjectWriter.writeValue(ObjectWriter.java:1008)
    at org.springframework.http.converter.json.AbstractJackson2HttpMessageConverter.writeInternal(AbstractJackson2HttpMessage

Environment

Release: DX UIM 20.4 CU9

Component: UIMAPI

Resolution

Engineering released a hotfix to address the issues caused by the noticed exceptions in the uimapi log see attachment below.