revert: remove use of blocking tasks for DHT db (reverts #3887) #3901
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Description
This reverts commit 4274f25, reversing
changes made to b48ee3e.
Motivation and Context
There are reports of issues with wallet to wallet stress testing that are said to be related to changes in #3887.
Since these changes are meant to be in-line with how tokio is designed to be used (i.e. don't block task threads)
but otherwise, should be pretty inconsequential in normal use, I revert them here so that we can observe differences if any.
In my stress testing I encountered similar issues with sending many transaction w2w with or without these changes. More specifically, transactions seem to get "stuck in pending" (underlying cause not found).
How Has This Been Tested?
Sending w2w stress test in order of a few hundred txns