Reduce memory allocations during queries execution

Description

"String id" in com.datastax.driver.core.RequestHandler and com.datastax.driver.core.RequestHandler.SpeculativeExecution are evaluated for each request and allocate extra objects in heap but actually needed only for tracing.
The values can be calculated lazy.

Environment

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Pull Requests

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Status

Assignee

Unassigned

Reporter

Dmitry Konstantinov

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Components

Priority

Minor
Configure