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https://issues.apache.org/jira/browse/HBASE-13090?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14500911#comment-14500911
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Hudson commented on HBASE-13090:
--------------------------------
FAILURE: Integrated in HBase-1.1 #407 (See
[https://builds.apache.org/job/HBase-1.1/407/])
HBASE-13090 Progress heartbeats for long running scanners (stack: rev
43f24db82566818d02062466ac421d86ddb735d8)
*
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/compactions/TestStripeCompactionPolicy.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestScannerHeartbeatMessages.java
* hbase-common/src/main/resources/hbase-default.xml
*
hbase-client/src/main/java/org/apache/hadoop/hbase/client/ScannerCallableWithReplicas.java
*
hbase-protocol/src/main/java/org/apache/hadoop/hbase/protobuf/generated/ClientProtos.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegion.java
* hbase-protocol/src/main/protobuf/Client.proto
* hbase-client/src/main/java/org/apache/hadoop/hbase/client/ScannerCallable.java
*
hbase-client/src/main/java/org/apache/hadoop/hbase/protobuf/RequestConverter.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/NoLimitScannerContext.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/client/ClientSideRegionScanner.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/coprocessor/TestCoprocessorInterface.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/ScannerContext.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/StoreScanner.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/KeyValueHeap.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/TestPartialResultsFromClientSide.java
* hbase-client/src/main/java/org/apache/hadoop/hbase/client/ClientScanner.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/RSRpcServices.java
> 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
> Assignee: Jonathan Lawlor
> Fix For: 2.0.0, 1.1.0
>
> Attachments: 13090-branch-1.addendum, HBASE-13090-v1.patch,
> HBASE-13090-v2.patch, HBASE-13090-v3.patch, HBASE-13090-v3.patch,
> HBASE-13090-v4.patch, HBASE-13090-v6.patch, HBASE-13090-v7.patch
>
>
> 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).
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