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Fix problematic ERS cases#8422

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deepthi merged 5 commits intovitessio:release-8.0vitessio/vitess:release-8.0from planetscale:jg_gtidsetplanetscale/vitess:jg_gtidsetCopy head branch name to clipboardJul 7, 2021

+62-5

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Commits on Jul 7, 2021

• Make it clearer which GTIDSet we are using.

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• The difference between two identical GTIDSet values should be empty, not

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• We use a sentinel file to avoid replication being restarted

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• Add additional logging for most of the tablet replication RPC endpoints,

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  aquarapid

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• Add test for a series of trivial ERS failovers to catch problems like

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  aquarapid

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