Healthcare API - GCP DICOM Adapter - PACS to Healthcare API Solution Reliability

[stevenzhang-support]

Questions on the DICOM Adapter's reliability

1. If there is a failure in transferring the data using this adapter between PACS to GCP DICOM Store (i.e. a failure in calling the GCP Healthcare API, the application crashes, there is a network outage, etc.) - does a standard PACS System pick up from where it last left off?
2. Is data persisted somewhere between retrieval and storage in DICOM? If not would it be possible to leverage some sort of persistent queue?
3. How was the consistency of the data transfer between PACS & DICOM Store tested by this adapter?
   GCP's PACS to DICOM Solution: Connecting a PACS system to the Healthcare API (DICOM store) - https://cloud.google.com/healthcare/docs/how-tos/dicom-connect-pacs
   GCP's DICOM Adapter: https://github.com/GoogleCloudPlatform/healthcare-dicom-dicomweb-adapter

• It is expected to understand how reliable this healthcare-dicom-dicomweb-adapter solution is prior to using it in a production environment.
• Note, My concern is with consistency of data between the PACS system and the DICOM store when using google's open source GCP DICOM Adapter solution. If there is a failure to transfer data from PACS to GCP DICOM Adapter will there be a retry or will the stream continue without retrying?
• I checked the source and I found numerous occasions when retry logic was used such as [1] it seems the upload has retried when http error code 500 or 502 received. Does this retry logic serve the purpose of fail safe retry when PACS connection to GCP healthcare store failed intermittently using this dicomweb adapter?
  [1] https://github.com/GoogleCloudPlatform/healthcare-dicom-dicomweb-adapter/blob/master/import/src/test/java/com/google/cloud/healthcare/imaging/dicomadapter/cstore/backup/BackupUploadServiceTest.java#L209

[stevenzhang-support]

hope to have some update such as triaged

[stevenzhang-support]

hope some update

[sanjay3290]

waiting for update

[akash769]

waiting for update