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https://issues.apache.org/jira/browse/HBASE-16626?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Charlie Qiangeng Xu updated HBASE-16626:
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Remaining Estimate: (was: 48h)
Original Estimate: (was: 48h)
> User customized RegionScanner from 1.X is incompatible in 2.0.0's off heap
> part
> -------------------------------------------------------------------------------
>
> Key: HBASE-16626
> URL: https://issues.apache.org/jira/browse/HBASE-16626
> Project: HBase
> Issue Type: Sub-task
> Components: Offheaping
> Affects Versions: 1.2.2, 1.1.6
> Reporter: Charlie Qiangeng Xu
> Fix For: 2.0.0
>
>
> Introduced by 2.0.0's off-heap feature, the interface RegionScanner extends a
> new interface Shipper which contains a "shipped()" method.
> In our case, some application user defined customized scanner that
> implements Interface RegionScanner in 1.X . After we back ported the Off Heap
> feature of 2.0.0, RegionScannerShippedCallBack throws a
> "java.lang.AbstractMethodError" when executing scanner.shipped();
> Instead of forcing every one of our users to add a empty implementation(if
> they don't really need to scan the file or the RS don't use L2 cache) ,
> adding a default method of shipped might be a better way.(since HBASE-15624
> we decide to use JAVA8 only in 2.0.0)
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