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Browse 3 real-world technical and behavioral interview questions about Polling. Review scenarios, edge cases, and architectural best practices.
A correct wait helper tracks a wall-clock deadline rather than an attempt count, treats an exception from the condition as a not-yet rather than a failure, returns the condition's value, and reports the last observed value or error when it gives up.
Answering a poll is work the controller does with the processor that runs its logic, so a second master competes with the control function rather than sitting beside it. Take the feed from the existing aggregation point, and treat the tag map as somebody else's change-controlled artefact.
Accept the request, return 202 with the location of an operation resource, and do the work behind a queue. Clients poll that resource or receive a signed callback, and either way the operation id is the contract - one that a callback can reach before the submitter has finished recording it.