Add capability create consistent transactions #4533
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To make this possible, some things are added: - The capability to lock all tables on a tablet, to momenterily stop updates - Once the database is locked, we can create multiple consistent snapshot transactions that all share the same view of the data - Adds the capability to have replication move forward to a specific point in the transaction log This commit also refactors tabletserver and tx_engine, moving logic of state transitions into the tx engine. Signed-off-by: Andres Taylor <antaylor@squareup.com>
sougou
approved these changes
Jan 18, 2019
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To make this possible, some things are added:
transactions that all share the same view of the data
in the transaction log
This commit also refactors tabletserver and tx_engine, moving logic of
state transitions into the tx engine.
(This is a squashed version of #4310)