Retrieve Cache for WADO RS - dcm4che/dcm4chee-arc-light GitHub Wiki

Description

The test is to verify that Retrieve Cache is used when study is retrieved using WADO-RS requests. This means that object(s) are first copied to the retrieve cache from nearline storage and then used for exporting the study to destination.

Steps

  • Store object(s) to archive using storescu tool

     storescu -c DCM4CHEE@hostname:11112 /path-tostudy                                             
    

    Below is a snippet of Request - Response logs

     13:10:41,374 INFO  - STORESCU->DCM4CHEE(1) << 1:C-STORE-RQ[pcid=7, prior=0
       cuid=1.2.840.10008.5.1.4.1.1.2 - CT Image Storage
       iuid=1.3.12.2.1107.5.8.1.12345678.199508041417040742898 - ?
       tsuid=1.2.840.10008.1.2 - Implicit VR Little Endian
    
     13:10:41,444 INFO  - STORESCU->DCM4CHEE(1) >> 1:C-STORE-RSP[pcid=7, status=0H
       cuid=1.2.840.10008.5.1.4.1.1.2 - CT Image Storage
       iuid=1.3.12.2.1107.5.8.1.12345678.199508041417040742898 - ?
       tsuid=1.2.840.10008.1.2 - Implicit VR Little Endian
    
  • Trigger WADO-RS Retrieve Study request

  • One would see in the Wildfly server log that when the WADO-RS Retrieve Study request is received by archive it first copies instance(s) from nearline storage to retrieve-cache storage and then uses it further from retrieve-cache to send back the response.

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