PowerFlex: 불완전한 응답으로 REST API 호출 실패
Summary: 응답이 불완전하고 REST API 호출이 실패합니다.
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Symptoms
일부 REST API 호출(예: "/api/instances")가 불완전한 응답으로 실패합니다. 예:
...vtreeMigrationInfo":{"sourceStoragePoolId":"<storage_pool_id>","destinationStoragePoolId":{"message":"ERROR","httpStatusCode":500,"errorCode":0}
그러나 localhost_access 로그는 성공적인 요청(상태 200)을 보고합니다.
<client ip> - - [12/Jun/2020:13:23:01 +0000] "GET /api/instances HTTP/1.1" 200 106376
scaleio-trace.log에는 다음과 같은 예외가 있습니다.
2020-06-12 13:23:01,377 [https-jsse-nio-443-exec-8] DEBUG o.s.w.s.m.m.a.ExceptionHandlerExceptionResolver - Resolving exception from handler [public java.lang.Object com.emc.s3g.scaleio.web.controller.SpecialImplController.getAllInstances(javax.servlet.http.HttpServletRequest) throws com.emc.s3g.scaleio.common.gateway.ScaleIOException]: org.springframework.http.converter.HttpMessageNotWritableException: Could not write JSON: (was java.lang.NullPointerException) (through reference chain: java.util.HashMap["vTreeList"]->java.util.ArrayList[74]->com.emc.s3g.scaleio.repository.entity.wrappers.VTreeWrapper["rootVolumes"]); nested exception is org.codehaus.jackson.map.JsonMappingException: (was java.lang.NullPointerException) (through reference chain: java.util.HashMap["vTreeList"]->java.util.ArrayList[74]->com.emc.s3g.scaleio.repository.entity.wrappers.VTreeWrapper["rootVolumes"]) 2020-06-12 13:23:01,377 [https-jsse-nio-443-exec-8] DEBUG o.s.w.s.m.m.a.ExceptionHandlerExceptionResolver - Invoking @ExceptionHandler method: public com.emc.s3g.scaleio.web.entity.Result com.emc.s3g.scaleio.web.controller.BaseController.handleException(java.lang.Exception,javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse) 2020-06-12 13:23:01,389 [https-jsse-nio-443-exec-8] ERROR c.e.s.s.w.c.SpecialImplController - Got an exception in handleException org.springframework.http.converter.HttpMessageNotWritableException: Could not write JSON: (was java.lang.NullPointerException) (through reference chain: java.util.HashMap["vTreeList"]->java.util.ArrayList[74]->com.emc.s3g.scaleio.repos itory.entity.wrappers.VTreeWrapper["rootVolumes"]); nested exception is org.codehaus.jackson.map.JsonMappingException: (was java.lang.NullPointerException
시나리오
REST API 호출이 이루어지기 직전에 볼륨이 삭제되었습니다.
영향
REST API 쿼리 실패
Cause
볼륨 삭제에는 시간이 걸리며 모든 데이터 구조가 동시에 제거되는 것은 아닙니다. 이로 인해 REST API 서버가 일부 REST API 호출에 대한 응답을 생성하지 못할 수 있습니다.
Resolution
나중에 다시 시도하십시오.
볼륨 삭제를 위한 백그라운드 프로세스가 완료되면 동일한 REST API 호출이 성공해야 합니다.
Additional Information
영향을 받는 버전
3.0.x3.0.1.x
Affected Products
PowerFlex appliance Intelligent Catalog Software, PowerFlex SoftwareProducts
PowerFlex rack, VxFlex Ready Nodes, PowerFlex Appliance, PowerFlex custom node, ScaleIO, PowerFlex appliance R650, PowerFlex appliance R6525, PowerFlex appliance R660, PowerFlex appliance R6625, Powerflex appliance R750, PowerFlex appliance R760
, PowerFlex appliance R7625, PowerFlex custom node, PowerFlex custom node R650, PowerFlex custom node R6525, PowerFlex custom node R660, PowerFlex custom node R6625, PowerFlex custom node R750, PowerFlex custom node R760, PowerFlex custom node R7625, PowerFlex rack connectivity, PowerFlex rack HW, PowerFlex rack RCM Software, VxFlex Ready Node, VxFlex Ready Node R640, VxFlex Ready Node R740xd, PowerFlex appliance R640, PowerFlex appliance R740XD, PowerFlex appliance R7525, PowerFlex appliance R840, VxFlex Ready Node R840
...
Article Properties
Article Number: 000081700
Article Type: Solution
Last Modified: 24 Nov 2025
Version: 4
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