chore(spanner): support transaction channel hint for RW mux #3317
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olavloite
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Sep 4, 2024
lqiu96
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Sep 19, 2024
* chore(spanner): add transaction channel hint for RW to support multiplexed sessions * chore(spanner): lint fix
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For regular sessions we maintain session to channel affinity. However, for multiplexed sessions we will need transaction to channel affinity.
This PR adds support for passing transaction channel hint for R/W transactions. This is needed to support multiplexed sessions in RW transactions. Without this change there will be impact on RW latencies.