Pavel Pereslegin created IGNITE-24275:
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Summary: Sql. Rework or replace
HybridTimestampTracker.clientTracker
Key: IGNITE-24275
URL: https://issues.apache.org/jira/browse/IGNITE-24275
Project: Ignite
Issue Type: Improvement
Components: sql
Reporter: Pavel Pereslegin
In summary, the requirements for a {{HybridTimestampTracker}} (*observable time
tracker*) are as follows:
* Observed time can be updated multiple times
* Observed time can be updated from different threads
* The updated value should be visible from different threads
* When updating the time, the tracker must provide a guarantee that the updated
value is monotonically increasing
>From that perspective current implementation of
>{{HybridTimestampTracker.clientTracker}} is broken.
* The method {{get()}} returns only initial value
* Consumer usually stores value to non-volatile field
* There is no check that the new value is greater than the previous one
We need to rework {{clientTracker}} to meet requirement or replace it where
with {{atomicTracker}}.
p.s. check TODO in codebase
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