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ConcurrencyFailureException when starting workflow

Question asked by mohamadabdelfatah on Oct 21, 2015
Hi all,

I got an error when starting workflow using the rest api.
this error happens randomly (most of the requests are successful)

URL : http://localhost:8080/alfresco/s/api/workflow/activiti$myBasicFlow/formprocessor

workflow :
kindly find it in attachments


Error :

07:21:50.163 [http-bio-8082-exec-451] ERROR MyConnector - {
    "status" :
  {
    "code" : 500,
    "name" : "Internal Error",
    "description" : "An error inside the HTTP server which prevented it from fulfilling the request."
  }, 
 
  "message" : "org.springframework.dao.ConcurrencyFailureException: Failed to update node 9999", 
  "exception" : "",
 
  "callstack" :
  [
       
  ],
 
  "server" : "Community v4.2.0 (r56674-b4848) schema 6,033",
  "time" : "Oct 12, 2015 7:21:41 AM"
}


07:21:50.166 [http-bio-8082-exec-451] ERROR b.g.c.c.s.i.CorrespondenceManagerImpl - doCorrespondenceAction(): Throwable: Error at create correspondence by 342 , on behalf of 664 , type 2 , title xxxxxxx , in reference number 2015-10-12 , out refernece number 3
com.me.exception.BusinessException: null




workflow starting parameters:

prop_my_targetUser : 342
prop_my_correspondencesIds : 4135,
prop_my_taskDueDate : Sun Nov 01 00:00:00 AST 2015
prop_bpm_workflowPriority : 2
prop_my_coming_from : 342
prop_my_organizationId : 325
assoc_packageItems_added : workspace://SpacesStore/45150e6a-4b71-4030-937b-00c9926df892
prop_my_serviceTypeId : 1144



Please help!

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