[ https://issues.apache.org/jira/browse/HBASE-13090?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14350796#comment-14350796 ]
stack commented on HBASE-13090: ------------------------------- [~jonathan.lawlor] Doesn't RegionScanner get created when the scan starts? Can it not run the timer? > 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 might be filtered out > depending on scan criteria. 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). -- This message was sent by Atlassian JIRA (v6.3.4#6332)