Alexander Rukletsov created MESOS-6766:
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Summary: HealthChecker launches helper binary each during health
check attempt.
Key: MESOS-6766
URL: https://issues.apache.org/jira/browse/MESOS-6766
Project: Mesos
Issue Type: Improvement
Affects Versions: 1.1.0, 1.2.0
Reporter: Alexander Rukletsov
Currently the HealthChecker library launches a helper binary ({{curl}} for
{{HTTP}}, {{mesos-tcp-connect}} for {{TCP}}, {{<user-command>}} for
{{COMMAND}}) each time it attempts a health check. While it is unavoidable for
{{COMMAND}} health checks, for {{HTTP}} and {{TCP}} we can do better. We
probably can't send requests and try TCP handshakes directly from the library,
i.e., executor process, because appropriate namespaces should be entered, but
we can launch the binary only once and keep it running alongside the task
process till the task is running.
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