You are viewing a plain text version of this content. The canonical link for it is here.

Posted to issues@hbase.apache.org by "Guanghao Zhang (Jira)" <ji...@apache.org> on 2019/09/17 02:27:00 UTC

[jira] [Assigned] (HBASE-23035) Retain region to the last RegionServer make the failover slower

     [ https://issues.apache.org/jira/browse/HBASE-23035?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Guanghao Zhang reassigned HBASE-23035:
--------------------------------------

    Assignee: Guanghao Zhang

> Retain region to the last RegionServer make the failover slower
> ---------------------------------------------------------------
>
>                 Key: HBASE-23035
>                 URL: https://issues.apache.org/jira/browse/HBASE-23035
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 3.0.0, 2.3.0, 2.2.1, 2.1.6
>            Reporter: Guanghao Zhang
>            Assignee: Guanghao Zhang
>            Priority: Major
>
> Now if one RS crashed, the regions will try to use the old location for the region deploy. But one RS only have 3 threads to open region by default. If a RS have hundreds of regions, the failover is very slower. Assign to same RS may have good locality if the Datanode is deploied on same host. But slower failover make the availability worse. And the locality is not big deal when deploy HBase on cloud.
> This was introduced by HBASE-18946.



--
This message was sent by Atlassian Jira
(v8.3.2#803003)