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Thus, it is very important to correctly track update counters, LWMs since thier values are used to calculate when rebalancing is necessary to launch to restore the integrity of partitions [2].

One more imporant overvation: As already was mentioned, LWM could safely be incremented only if the update is written to the WAL.

Otherwise, a situation is possible when the counter has increased, but there is no corresponding durable update.

Crash recovery

There is no guarantee that this update will be completed, for example, if during the dht prepare transaction some nodes will exit, the transaction may be rolled back.
When a node’s primary collapse under load situations may arise where may be permanent gaps in the updates on backup nodes in the event of transaction reordering.

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