PowerFlex:REST API呼び出しが不完全な応答で失敗する
Summary: REST API呼び出しが不完全な応答で失敗します。
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Symptoms
一部の REST API 呼び出し ("/api/instances)が不完全な応答で失敗します。例:
...vtreeMigrationInfo":{"sourceStoragePoolId":"<storage_pool_id>","destinationStoragePoolId":{"message":"ERROR","httpStatusCode":500,"errorCode":0}
ただしlocalhost_accessログには、成功した要求 (ステータス 200) が報告されます。
<client ip> - - [12/Jun/2020:13:23:01 +0000] "GET /api/instances HTTP/1.1" 200 106376
scaleio-trace.logには次の例外が含まれています。
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
シナリオ
REST APIコールが行われる直前にボリュームの削除がありました。
問題
REST APIクエリーの失敗
Cause
ボリュームの削除には時間がかかり、すべてのデータ構造が同時に削除されるわけではありません。これにより、REST APIサーバーが一部のREST APIコールに対するレスポンスを生成できない場合があります。
Resolution
後でもう一度お試しください
ボリューム削除のバックグラウンド プロセスが完了すると、同じREST APIコールが成功するはずです。
Additional Information
問題が発生するバージョン
3.0.x
3.0.1.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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