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From "Yu Li (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-17743) Support embedded mode in HBase
Date Tue, 07 Mar 2017 10:26:37 GMT

     [ https://issues.apache.org/jira/browse/HBASE-17743?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Yu Li updated HBASE-17743:
    Attachment: Embedded HBase Design.docx

Uploading the design doc

> Support embedded mode in HBase
> ------------------------------
>                 Key: HBASE-17743
>                 URL: https://issues.apache.org/jira/browse/HBASE-17743
>             Project: HBase
>          Issue Type: New Feature
>            Reporter: Yu Li
>            Assignee: Yu Li
>         Attachments: Embedded HBase Design.docx
> Currently HBase supports stand-alone mode and suggest to use it for embedded database
requirements, which has below problems:
> 1. HMaster and HRegionServer are still separated threads, which cost more resource
> 2. There’s still RPC cost when doing request, which makes a poor performance
> 3. There're still distributed component involved in standalone-mode, such as zookeeper
and DLS, which makes the startup/shutdown speed not acceptable for embedded usage.
> Here we propose to support the embedded mode natively, mainly in two steps:
> 1. Simple embedded mode, which still uses zookeeper for coordination, but with only one
server thread and supports access w/o RPC
> 2. Full embedded mode, which removes all distributed stuff and make a clean embedded
core for embedded usage.
> Please see more details in the design doc.

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