Mailing-List: contact issues-help@hbase.apache.org; run by ezmlm
Precedence: bulk
Date: Fri, 22 Sep 2017 21:41:00 +0000 (UTC)
From: "stack (JIRA)" <jira@apache.org>
To: issues@hbase.apache.org
Message-ID: <JIRA.13099448.1504440594000.180514.1506116460653@Atlassian.JIRA>
In-Reply-To: <JIRA.13099448.1504440594000@Atlassian.JIRA>
References: <JIRA.13099448.1504440594000@Atlassian.JIRA> <JIRA.13099448.1504440594027@jira-lw-us.apache.org>
Subject: [jira] [Updated] (HBASE-18747) Introduce new example and helper
 classes to tell CP users how to do filtering on scanners
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit
archived-at: Fri, 22 Sep 2017 21:41:07 -0000


     [ https://issues.apache.org/jira/browse/HBASE-18747?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

stack updated HBASE-18747:
--------------------------
    Priority: Critical  (was: Major)

> Introduce new example and helper classes to tell CP users how to do filtering on scanners
> -----------------------------------------------------------------------------------------
>
>                 Key: HBASE-18747
>                 URL: https://issues.apache.org/jira/browse/HBASE-18747
>             Project: HBase
>          Issue Type: Sub-task
>          Components: Coprocessors
>            Reporter: Duo Zhang
>            Priority: Critical
>             Fix For: 2.0.0-alpha-4
>
>
> Finally we decided that CP users should not have the ability to create {{StoreScanner}} or {{StoreFileScanner}}, so it is impossible for them to filter out some cells when flush or compaction by simply provide a filter when constructing {{StoreScanner}}.
> But I think filtering out some cells is a very important usage for CP users, so we need to provide the ability in another way. Theoretically it can be done with wrapping an {{InternalScanner}}, but I think we need to give an example, or even some helper classes to help CP users.


--
This message was sent by Atlassian JIRA
(v6.4.14#64029)