[georgweiss]

Restoring a snapshot over channel access may trigger deadlocks in the JCA lib when writing in a asynchronous/threaded manner. Performing the write operations synchronously seems to be a workaround.

This PR adds a preference org.phoebus.saveandrestore.util/restorePolicy=<ASYNCHRONOUS|SYNCHRONOUS>controlling the restore execution. Default is ASYNCHRONOUS.

• Testing:

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  • Tests were run
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• Documentation:

  • The feature is documented
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    • Added an entry if the change is breaking or significant
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[sonarqubecloud]

Quality Gate passed

Issues
2 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[shroffk]

While this is not ideal...this is a good short term fix while we address the deeper jca write synchronization issues.

We will also be create more test cases to better understand the cause of the deadlock