hbase-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Duo Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-19154) Scan consistency guarantee
Date Mon, 20 Nov 2017 12:30:00 GMT

    [ https://issues.apache.org/jira/browse/HBASE-19154?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16259184#comment-16259184

Duo Zhang commented on HBASE-19154:

Do not have much time to do this. Let's do it after 2.0 release.

> Scan consistency guarantee
> --------------------------
>                 Key: HBASE-19154
>                 URL: https://issues.apache.org/jira/browse/HBASE-19154
>             Project: HBase
>          Issue Type: Umbrella
>          Components: Compaction, scan
>    Affects Versions: 3.0.0
>            Reporter: Duo Zhang
> For now, although we already pass mvcc back to client, and client will send this mvcc
to RS when reopening a scanner, we still can not make sure that the region/row level consistency
is safe as compaction happens after region move but before the scanner reopen may delete some
cells which mvcc are before the mvcc given by client.
> This issue aims to try our best to guarantee region level consistency, and if not, we
need to tell users we can not make it.

This message was sent by Atlassian JIRA

View raw message