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TiProxy keeps session migration when its network is unstable #366

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djshow832 opened this issue Sep 11, 2023 · 0 comments

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djshow832 commented Sep 11, 2023

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If the network of TiProxy itself is unstable, the health check of all TiDB instances will also be unstable.

It thinks tidb-0 is unavailable due to ping timeout, and migrates the sessions from tidb-0 to tidb-1
After 10 seconds, it thinks tidb-0 is available again and thinks tidb-1 is unavailable, then it migrates sessions back

If TiProxy keeps migration, the performance will be degraded even worse.

djshow832 added the enhancement label

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