Mailing-List: contact issues-help@hbase.apache.org; run by ezmlm
Precedence: bulk
Date: Thu, 19 Mar 2015 01:04:41 +0000 (UTC)
From: "Andrew Purtell (JIRA)" <jira@apache.org>
To: issues@hbase.apache.org
Message-ID: <JIRA.12782590.1426606028000.138450.1426727081052@Atlassian.JIRA>
In-Reply-To: <JIRA.12782590.1426606028000@Atlassian.JIRA>
References: <JIRA.12782590.1426606028000@Atlassian.JIRA>
 <JIRA.12782590.1426606028679@arcas>
Subject: [jira] [Commented] (HBASE-13262) ResultScanner doesn't return all
 rows in Scan
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit


    [ https://issues.apache.org/jira/browse/HBASE-13262?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14368268#comment-14368268 ] 

Andrew Purtell commented on HBASE-13262:
----------------------------------------

bq. This approach wouldn't break 0.98 clients against 1.x; however, it also wouldn't address the underlying problem of the client guessing at what to do based on the characteristics of the {{Result[]}} when it is unaware of the existence of this new field in the protobuf. Given my understanding of the problem, 0.98 clients running against 1.x *could* see this problem, although I have not tested that to confirm it happens.

Wire compatibility and a default configuration in 1.0.x that mitigates the problem until a rolling upgrade is completed could be good enough. Additional comment reserved until you come back with results from more digging. 

> ResultScanner doesn't return all rows in Scan
> ---------------------------------------------
>
>                 Key: HBASE-13262
>                 URL: https://issues.apache.org/jira/browse/HBASE-13262
>             Project: HBase
>          Issue Type: Bug
>          Components: Client
>    Affects Versions: 2.0.0, 1.1.0
>         Environment: Single node, pseduo-distributed 1.1.0-SNAPSHOT
>            Reporter: Josh Elser
>            Assignee: Josh Elser
>            Priority: Blocker
>             Fix For: 2.0.0, 1.1.0
>
>         Attachments: testrun_0.98.txt, testrun_branch1.0.txt
>
>
> Tried to write a simple Java client again 1.1.0-SNAPSHOT.
> * Write 1M rows, each row with 1 family, and 10 qualifiers (values [0-9]), for a total of 10M cells written
> * Read back the data from the table, ensure I saw 10M cells
> Running it against {{04ac1891}} (and earlier) yesterday, I would get ~20% of the actual rows. Running against 1.0.0, returns all 10M records as expected.
> [Code I was running|https://github.com/joshelser/hbase-hwhat/blob/master/src/main/java/hbase/HBaseTest.java] for the curious.


--
This message was sent by Atlassian JIRA
(v6.3.4#6332)