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Upgrade `rust-rocksdb`: make it possible to upgrade from `RocksDB` to `Titan` smoothly #4002

merged 2 commits into from Jan 2, 2019


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DorianZheng commented Jan 2, 2019

Signed-off-by: DorianZheng

What have you changed? (mandatory)

We don't check if the directory of Titan data exists, so we can upgrade TiKV from RocksDB-based to Titan-based smoothly.

What are the type of the changes? (mandatory)

  • Improvement

How has this PR been tested? (mandatory)

1, Initiate TiKV with RocksDB at first and import some data.
2, Stop TiKV and set it to use Titan.
3, Start and check if it's still normal.

Does this PR affect documentation (docs) update? (mandatory)


Does this PR affect tidb-ansible update? (mandatory)


upgrade titan
Signed-off-by: DorianZheng <>

@DorianZheng DorianZheng changed the title Upgrade `rust-rocksdb`: make it possible to upgrade from `RocksDB` to `Titan` without pain Upgrade `rust-rocksdb`: make it possible to upgrade from `RocksDB` to `Titan` smoothly Jan 2, 2019

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@DorianZheng DorianZheng added the C: Titan label Jan 2, 2019

@DorianZheng DorianZheng merged commit 122544e into tikv:master Jan 2, 2019

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@DorianZheng DorianZheng deleted the DorianZheng:upgrade_titan branch Jan 2, 2019

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