[FLUME-3025] Expose FileChannel.open on JMX - ASF JIRA

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Details

Type: Improvement
Status: Resolved
Priority: Major
Resolution: Fixed
Affects Version/s: None
Fix Version/s: 1.8.0
Component/s: None
Labels:
None

Description

We've encountered an issue several times when the FileChannel wasn't able to start because of some startup-time exception.
In this case FileChannel.open stays false false, exposing this field on JMX would make it easier to detect when the file channel hasn't been started / or has been stopped because of some reason.