C-MOVE-CANCEL and C-FIND-CANCEL ignored

Yves Neumann · Jan 18th 2010

Both services (C-FIND and C-MOVE) seem to ignore cancel requests. The log states "Cancel request (ignored)" if the SCU sends such a request. Is this behaviour configurable or hard coded? I could not find anything related in the user interface or any config file.

As I understand the standard the SCP "shall" handle those requests. See PS3.4-2008 C.4.1.3.1 (C-FIND) and C.4.2.2.1 (C-MOVE).

marcelvanherk · Jan 18th 2010

Hi Yves,

indeed conquest ignores these requests. Actually, I believe conquest will only read the request after finishing the C-MOVE or C-FIND, i.e., too late. Can you see this happening in the log, i.e., does "Cancel request (ignored)" show after all activity is finished or between? In any case, I will add this issue to the bug list.

Marcel

Yves Neumann · Jan 18th 2010

Hi Marcel,

the CANCEL-Request appears after the last action. I programatically forced a cancel after 10 reponses in my example (the query will result in 33 responses). If you need a tool capable to send such CANCEL-Request you may use the findscu or movescu of DCMTK. Both support the "CancelAfterNResponses" parameter. My current conquest is of version 1.4.15.

Here the log of such a request (DEBUG Level 4):

Code

[CONQUESTSRV] Connected by address: 7801a8c0
[CONQUESTSRV] Testing transfer: '1.2.840.10008.1.2.1' against list #0 = '1.2.840.10008.1.2'
[CONQUESTSRV] Testing transfer: '1.2.840.10008.1.2.2' against list #0 = '1.2.840.10008.1.2'
[CONQUESTSRV] Testing transfer: '1.2.840.10008.1.2' against list #0 = '1.2.840.10008.1.2'
[CONQUESTSRV] 
[CONQUESTSRV] UPACS THREAD 5: STARTED AT: Mon Jan 18 16:12:12 2010
[CONQUESTSRV] A-ASSOCIATE-RQ Packet Dump
[CONQUESTSRV]  Calling Application Title : "IQSERVER        "
[CONQUESTSRV]  Called Application Title : "CONQUESTSRV     "
[CONQUESTSRV]  Application Context : "1.2.840.10008.3.1.1.1", PDU length: 16384
[CONQUESTSRV]  Number of Proposed Presentation Contexts: 1
[CONQUESTSRV]  Presentation Context 0 "1.2.840.10008.5.1.4.1.2.2.1" 1
[CONQUESTSRV] Server Command   := 0020
[CONQUESTSRV] Message ID       := 0000
[CONQUESTSRV] 0000,0002     28 UI AffectedSOPClassUID    "1.2.840.10008.5.1.4.1.2.2.1" 
[CONQUESTSRV] 0000,0100      2 US CommandField           32 
[CONQUESTSRV] 0000,0110      2 US MessageID              0 
[CONQUESTSRV] 0000,0700      2 US Priority               2 
[CONQUESTSRV] 0000,0800      2 US DataSetType            1 
[CONQUESTSRV] (StudyRootQuery) search level: STUDY 
[CONQUESTSRV] 0008,0020      0 DA StudyDate              (empty)
[CONQUESTSRV] 0008,0050      0 SH AccessionNumber        (empty)
[CONQUESTSRV] 0008,0052      6 CS QueryRetrieveLevel     "STUDY " 
[CONQUESTSRV] 0008,0090      0 PN ReferringPhysicianNa   (empty)
[CONQUESTSRV] 0010,0010      2 PN PatientName            "* " 
[CONQUESTSRV] 0010,0020      0 LO PatientID              (empty)
[CONQUESTSRV] 0010,0030      0 DA PatientBirthDate       (empty)
[CONQUESTSRV] 0010,0040      0 CS PatientSex             (empty)
[CONQUESTSRV] 0020,000d      0 UI StudyInstanceUID       (empty)
[CONQUESTSRV] 0020,0010      0 SH StudyID                (empty)
[CONQUESTSRV] Query On Study
[CONQUESTSRV] Issue Query on Columns: DICOMStudies.StudyDate, DICOMStudies.AccessionN, DICOMStudies.ReferPhysi, DICOMStudies.PatientNam, DICOMStudies.PatientID, DICOMStudies.PatientBir, DICOMStudies.PatientSex, DICOMStudies.StudyInsta, DICOMStudies.StudyID
[CONQUESTSRV] Values: DICOMStudies.PatientNam LIKE '%'
[CONQUESTSRV] Tables: DICOMStudies
[CONQUESTSRV] Sorting (DICOMStudies.PatientNam) DoSort := 1
[CONQUESTSRV] Query Distinct Tables: DICOMStudies
[CONQUESTSRV] Columns              : DICOMStudies.StudyDate, DICOMStudies.AccessionN, DICOMStudies.ReferPhysi, DICOMStudies.PatientNam, DICOMStudies.PatientID, DICOMStudies.PatientBir, DICOMStudies.PatientSex, DICOMStudies.StudyInsta, DICOMStudies.StudyID
[CONQUESTSRV] Where                : DICOMStudies.PatientNam LIKE '%'
[CONQUESTSRV] Order                : DICOMStudies.PatientNam
[CONQUESTSRV] Records = 33
[CONQUESTSRV] First record of cleaned response:
[CONQUESTSRV] 0008,0020      8 DA StudyDate              "20070911" 
[CONQUESTSRV] 0008,0050      0 SH AccessionNumber        (empty)
[CONQUESTSRV] 0008,0090     10 PN ReferringPhysicianNa   "O#### " 
[CONQUESTSRV] 0010,0010     16 PN PatientName            "B######^Z###### " 
[CONQUESTSRV] 0010,0020      4 LO PatientID              "7690" 
[CONQUESTSRV] 0010,0030      8 DA PatientBirthDate       "19XXXXXX" 
[CONQUESTSRV] 0010,0040      2 CS PatientSex             "F " 
[CONQUESTSRV] 0020,000d     46 UI StudyInstanceUID       "1.3.46.670589.26.XXXXXXXXXXXXXXXXXXXXXX" 
[CONQUESTSRV] 0020,0010      4 SH StudyID                "1047" 
[CONQUESTSRV] C-Find (StudyRoot) located 33 records
[CONQUESTSRV] Server Command   := 0fff
[CONQUESTSRV] Message ID       := 0000
[CONQUESTSRV] 0000,0100      2 US CommandField           4095 
[CONQUESTSRV] 0000,0120      2 US MessageIDBeingRespon   0 
[CONQUESTSRV] 0000,0800      2 US DataSetType            257 
[CONQUESTSRV] Cancel request (ignored)
[CONQUESTSRV] UPACS THREAD 5: ENDED AT: Mon Jan 18 16:12:16 2010
[CONQUESTSRV] UPACS THREAD 5: TOTAL RUNNING TIME: 4 SECONDS

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marcelvanherk · Jan 18th 2010

Thanks,

I wil try to fix it in the next release....

Marcel

C-MOVE-CANCEL and C-FIND-CANCEL ignored

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