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Posted to issues@hbase.apache.org by "James Taylor (JIRA)" <ji...@apache.org> on 2016/07/28 01:00:35 UTC

[jira] [Updated] (HBASE-16296) Reverse scan performance degrades when scanner cache size matches page filter size

     [ https://issues.apache.org/jira/browse/HBASE-16296?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

James Taylor updated HBASE-16296:
---------------------------------
    Attachment: generatedata-snippet.java

> Reverse scan performance degrades when scanner cache size matches page filter size
> ----------------------------------------------------------------------------------
>
>                 Key: HBASE-16296
>                 URL: https://issues.apache.org/jira/browse/HBASE-16296
>             Project: HBase
>          Issue Type: Bug
>            Reporter: James Taylor
>         Attachments: generatedata-snippet.java
>
>
> When a reverse scan is done, the server seems to not know it's done when the scanner cache size matches the number of rows in a PageFilter. See PHOENIX-3121 for how this manifests itself. We have a standalone, pure HBase API reproducer too that I'll attach (courtesy of [~churromorales] and [~mujtabachohan]).



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