fix: handle recovery failures during stream reframing failure #46
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This was discovered while debugging another issue. While deflaking ReadRowRetryTest, this issue came up preventing me from seeing the underlying issue. ReframingResponseObserver#deliverUnsafe() should never fail. However if does, it will try to cancel the upstream stream and notify the downstream observer. However canceling the upstream can throw an exception and prevent the downstram observer from being notified of any error. This fix will catch cancellation errors and add them as suppressed exceptions to the original failure
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Codecov Report
@@ Coverage Diff @@
## master #46 +/- ##
============================================
+ Coverage 81.28% 81.29% +<.01%
Complexity 937 937
============================================
Files 95 95
Lines 5839 5842 +3
Branches 325 325
============================================
+ Hits 4746 4749 +3
Misses 917 917
Partials 176 176
Continue to review full report at Codecov.
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kolea2
approved these changes
Oct 28, 2019
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This was discovered while debugging another issue. While deflaking
ReadRowRetryTest, this issue came up preventing me from seeing the
underlying issue.
ReframingResponseObserver#deliverUnsafe() should never fail. However if
does, it will try to cancel the upstream stream and notify the
downstream observer. However canceling the upstream can throw an
exception and prevent the downstram observer from being notified of any
error.
This fix will catch cancellation errors and add them as suppressed
exceptions to the original failure
Fixes #<issue_number_goes_here> (it's a good idea to open an issue first for context and/or discussion)