Gracefully handle errors from Future object callbacks. #20015
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In grpc#19910, it was pointed out that raising an exception from a Future callback would cause the channel spin thread to terminate. If there are outstanding events on the channel, this will cause calls to Channel.close() to block indefinitely. This commit ensures that the channel spin thread does not die. Instead, exceptions will be logged at ERROR level.
gnossen
added
kind/bug
lang/Python
area/concurrency
release notes: yes
lidizheng
reviewed
Aug 20, 2019
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Known error: #20003 |
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In #19910, it was pointed out that
raising an exception from a Future callback would cause the channel spin
thread to terminate. If there are outstanding events on the channel,
this will cause calls to Channel.close() to block indefinitely.
This commit ensures that the channel spin thread does not die. Instead,
exceptions will be logged at ERROR level.
This PR fixes #19910.