Bug fix: Send commit timestamps in order#2687
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manishrjain merged 7 commits intomasterfrom Oct 23, 2018
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Oct 22, 2018
…tiple updates from Zero.
dna2github
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Jul 19, 2019
Zero had a race condition, where it could send commit timestamps out of order. This can cause invalid reads anyway. But, even more serious than that, Alpha was recently changed to ensure that it does not write over a newer version of the key (dgraph-io@a4bd06f2f). If commits come out of order, some of these commits can be dropped on the floor. This change fixes that by ensuring that Zero would send all the commits in the right order. P.S. Also did a change for @danielmai , which sets `stderrthreshold=0` always, and doesn't let a user overwrite it. Changelog: * Fix to ensure that Zero sends out all commit timestamps in order. * Do the sorting of txn status in Alpha, because Alpha also batches multiple updates from Zero.
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Zero had a race condition, where it could send commit timestamps out of order. This can cause invalid reads anyway. But, even more serious than that, Alpha was recently changed to ensure that it does not write over a newer version of the key (a4bd06f2f). If commits come out of order, some of these commits can be dropped on the floor.
This change fixes that by ensuring that Zero would send all the commits in the right order.
This change is