txnsync: fix potential race during TestBasicCatchpointCatchup #3033
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@@ Coverage Diff @@
## master #3033 +/- ##
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- Coverage 43.65% 43.63% -0.02%
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Files 391 391
Lines 86764 86764
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- Hits 37875 37861 -14
- Misses 42861 42873 +12
- Partials 6028 6030 +2
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onetechnical
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Oct 25, 2021
## Summary During fast catchup, we restart the transaction sync service very quickly. This can cause a network message being sent, and the response would be returned to the "restarted" txnsync. Since we don't want to disconnect the network connection itself ( which could have some messages enqueued ), the transaction sync would need to store the "returned" channel before sending the message. That would avoid the data race ( and safely ignore the incoming message ). ## Test Plan Use existing testing, and confirm against that.
tsachiherman
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Nov 2, 2021
…algorand#3033)" This reverts commit 8568442.
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Summary
During fast catchup, we restart the transaction sync service very quickly.
This can cause a network message being sent, and the response would be returned to the "restarted" txnsync.
Since we don't want to disconnect the network connection itself ( which could have some messages enqueued ), the transaction sync would need to store the "returned" channel before sending the message. That would avoid the data race ( and safely ignore the incoming message ).
Test Plan
Use existing testing, and confirm against that.