Aleksandr Polovtsev created IGNITE-22979:
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Summary: Add message throttling to CriticalWorkerWatchdog
Key: IGNITE-22979
URL: https://issues.apache.org/jira/browse/IGNITE-22979
Project: Ignite
Issue Type: Improvement
Reporter: Aleksandr Polovtsev
Assignee: Aleksandr Polovtsev
{{CriticalWorkerWatchdog}} is responsible for monitoring some threads that are
not intended to be blocked for long periods of time. However, if the system is
in a bad state for some reason (e.g. memory is being consumed by other
processes), this watchdog starts spamming with a lot of messages, which
pollutes the log and makes later investigation more difficult.
I propose to add an exponential throttling policy: if a thread has been blocked
more than a configured amount of time and the message has been printed, the
next check must be performed in an increased time interval comparing to the
previous check. If no threads are blocked, then the check interval can be reset
to its default value.
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