ptupitsyn commented on issue #12639:
URL: https://github.com/apache/ignite/issues/12639#issuecomment-3766924144
@malte-f19 This behavior is expected.
* Separate `IgniteClient` instances are not guaranteed to see the same data
at the same time.
* It takes time for the updates to replicate to all server nodes. If
client A updates a row on node 1, then client B sends a query to node 2, a
delay is possible for the changes to be observed
* Each client has its own "observable timestamp", a hybrid clock value
that it "looks at". This guarantees correct causality within a single client
instance and speeds up reads because we can skip waiting for certain things to
happen, but leads to the delays you observe
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