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From "Duo Zhang (Jira)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-11288) Splittable Meta
Date Thu, 09 Jul 2020 07:46:00 GMT

    [ https://issues.apache.org/jira/browse/HBASE-11288?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17154294#comment-17154294
] 

Duo Zhang commented on HBASE-11288:
-----------------------------------

Let me put up the problems and the solutions for the two solutions again.

For general root table, there are two problems:

1. '2-tier' of assignment/initialzation/bootstraping on master start up and fail recovery.
A 'possible' solution is: run ITBLL to see if it works.
Time cost: <please provide>

2. how to distribute load of the general root table.
Read replicas feature has been dropped. The current statement is that we could also implement
cache servers for a general root table, but we need a clear design.
Time cost: <please provide>

For master local region, there is one problem:

1. Master is on the critical path of client normal read/write.
The solution is to introduce cache servers for root table content. We have discussed this
a lot in the design doc but seems [~stack] removed most of the content. Anyway, there is a
issue HBASE-24459 for it, I can start working on it soon to show how to implement cache servers.
Time cost: within two weeks.

Do you agree with the above statements? [~toffer].

Thanks.

> Splittable Meta
> ---------------
>
>                 Key: HBASE-11288
>                 URL: https://issues.apache.org/jira/browse/HBASE-11288
>             Project: HBase
>          Issue Type: Umbrella
>          Components: meta
>            Reporter: Francis Christopher Liu
>            Assignee: Francis Christopher Liu
>            Priority: Major
>




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