sunyerui created KYLIN-923:
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Summary: FetcherRunner will never run again if encountered
exception during running
Key: KYLIN-923
URL: https://issues.apache.org/jira/browse/KYLIN-923
Project: Kylin
Issue Type: Bug
Components: Job Engine
Affects Versions: v0.7.2
Reporter: sunyerui
Assignee: ZhouQianhao
{{FetcherRunner}} was scheduled at fix rate in {{fetcherPool}} which is a
{{ScheduledExecutorService}}. In every running, {{FetcherRunner}} fetch all
jobs from {{executableManager}}, and submit READY jobs to execute.
If exceptions encountered during running, such as
{{executableManager.getAllJobIds()}} or {{executableManager.getAllJobIds()}},
the {{FetcherRunner}} will never run again in {{fetcherPool}}, that was
explained in comment of {{ScheduledExecutorService.scheduleAtFixedRate}}.
The solution to resolve this issue is simple, that catch all {{Exception}}
during {{FetcherRunner.run()}}. I will upload a patch later.
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