hbase-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-12577) Disable distributed log replay by default
Date Mon, 22 Dec 2014 22:32:13 GMT

    [ https://issues.apache.org/jira/browse/HBASE-12577?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14256263#comment-14256263
] 

stack commented on HBASE-12577:
-------------------------------

See HBASE-12746.  More needed disabling DLR

> Disable distributed log replay by default
> -----------------------------------------
>
>                 Key: HBASE-12577
>                 URL: https://issues.apache.org/jira/browse/HBASE-12577
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: Enis Soztutar
>            Assignee: Jeffrey Zhong
>            Priority: Critical
>             Fix For: 0.99.2
>
>         Attachments: HBASE-12567.patch, HBASE-12567.patch
>
>
> Distributed log replay is an awesome feature, but due of HBASE-11094, the rolling upgrade
story from 0.98 is hard to explain / enforce. 
> The fix for HBASE-11094 only went into 0.98.4, meaning rolling upgrades from 0.98.4-
might lose data during the upgrade. 
> I feel no matter how much documentation / warning we do, we cannot prevent users from
doing rolling upgrades from 0.98.4- to 1.0. And we do not want to inconvenience the user by
requiring a two step rolling upgrade.  
> Thus I think we should disable dist log replay for 1.0, and re-enable it again for 1.1
(if rolling upgrade from 0.98 is not supported). 
> ie. undo: HBASE-10888



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

Mime
View raw message