Ivan Bessonov created IGNITE-24839:
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Summary: Throttling blocks threads unwarrantedly on first
checkpoint
Key: IGNITE-24839
URL: https://issues.apache.org/jira/browse/IGNITE-24839
Project: Ignite
Issue Type: Bug
Reporter: Ivan Bessonov
Assignee: Ivan Bessonov
If I enable speed-based PDS throttling in code and start Ignite node with
immediate high load, I see this in all stripes:
{code:java}
[PagesWriteSpeedBasedThrottle] Parking
thread=%poc-tester-SERVER-172.25.4.103-id-0%JRaft-FSMCaller-Disruptor_stripe_27-0
for timeout(ms)=3600{code}
Parking time can be up to 18 seconds, which is simply insane.
Everything stabilizes after a while, but blocking threads for several seconds
is clearly not an optimal behavior.
Exact reasons are not clear, I suspect that it is a checkpoint speed
calculation in the absence of accumulated data.
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