GODRIVER-3163 Preserve original cancellation/timeout errors. #1625
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matthewdale
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@matthewdale should this be ported to |
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@blink1073 Yes, it should. Thanks for checking! |
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GODRIVER-3163
Summary
Previously transformNetworkError() would replace original errors with either
context.Canceledorcontext.DeadlineExceeded. This changes that so that the original error information is preserved.Background & Motivation
Use of
errors.Is()implies a desire to honor wrapped errors. Replacing a wrapped error withcontext.Canceledsubverts that.This subversion adversely affects Mongosync, which wraps
context.Canceledwith detail about the cancellation’s cause. (See REP-3632 for details about this.)The same pattern applies to discarding the driver’s
originalErrorin favor of DeadlineExceeded. We can safely preserve the originalnet.Error’s context by wrapping DeadlineExceeded.