Artem Budnikov created IGNITE-10154:
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Summary: Critical worker liveness check configuration is
non-trivial and inconsistent
Key: IGNITE-10154
URL: https://issues.apache.org/jira/browse/IGNITE-10154
Project: Ignite
Issue Type: Task
Affects Versions: 2.7
Reporter: Artem Budnikov
Fix For: 2.7
The way the critical thread liveness check is configured has a number of
usability issues.
1) By default, the liveness check is disabled (i.e. if no failure handler is
specified in the configuration). However, if you specify any handler (including
the default one), liveness check gets enabled (which is something the users may
not want) unless you disable it explicitly.
2) Users that use Ignite 2.6 with a configured failure handler will get this
check enabled after migrating to Ignite 2.7.
In the two cases above, the functionality changes in a non-trivial. Ideally, we
need an option that enables this functionality explicitly. A possible example
would be to keep liveness check disabled until the user sets the
systemWorkerBlockedTimeout to a positive value. (Or the other way around:
enable liveness check by default until the user explicitly disables it).
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