Hanifi Gunes created DRILL-4202:
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Summary: Handle coordinator/foreman failures to prevent data loss
Key: DRILL-4202
URL: https://issues.apache.org/jira/browse/DRILL-4202
Project: Apache Drill
Issue Type: Sub-task
Reporter: Hanifi Gunes
Priority: Minor
Foreman relies on ephemeral nodes to get rid of zombie profiles. However,
foreman failures still cause loss of profile data. This happens at any
non-terminal state where profile is not yet persisted. The initial proposal is
to rely on watchers to detect state changes and react upon. We can use random
back-off or a similar scheme to avoid hammering Zookeeper.
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