Andrew Purtell created HBASE-13090:
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Summary: Progress heartbeats for long running scanners
Key: HBASE-13090
URL: https://issues.apache.org/jira/browse/HBASE-13090
Project: HBase
Issue Type: New Feature
Reporter: Andrew Purtell
It can be necessary to set very long timeouts for clients that issue scans over
large regions when all data in the region is filtered out. This is a usability
concern because it can be hard to identify what worst case timeout to use until
scans are occasionally/intermittently failing in production, depending on
variable scan criteria. It would be better if the client-server scan protocol
can send back periodic progress heartbeats to clients as long as server
scanners are alive and making progress.
This is related but orthogonal to streaming scan (HBASE-13071).
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