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Posted to issues@hbase.apache.org by "Andrew Purtell (JIRA)" <ji...@apache.org> on 2016/08/01 21:11:20 UTC
[jira] [Comment Edited] (HBASE-16296) Reverse scan performance
degrades when using filter lists
[ https://issues.apache.org/jira/browse/HBASE-16296?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15402828#comment-15402828 ]
Andrew Purtell edited comment on HBASE-16296 at 8/1/16 9:10 PM:
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I see the same TestPartialResultsFromClientSide glitch at head of branch-1 before application of this patch, so I think that is environmental on my end and will circle back to it. Change looks good.
was (Author: apurtell):
I see the same TestPartialResultsFromClientSide glitch at head of branch-1 before application of this patch, so I think that is environment on my end and will circle back to it. Change looks good.
> Reverse scan performance degrades when using filter lists
> ---------------------------------------------------------
>
> Key: HBASE-16296
> URL: https://issues.apache.org/jira/browse/HBASE-16296
> Project: HBase
> Issue Type: Bug
> Components: Filters
> Reporter: James Taylor
> Assignee: Ted Yu
> Fix For: 2.0.0, 1.3.0, 1.4.0, 1.1.6, 0.98.21, 1.2.3
>
> Attachments: 16296-MAYBE-v2.txt, 16296-MAYBE.txt, HBASE-16296.patch, PAgefilter.patch, generatedata-snippet.java, repro-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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