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From "Yu Li (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-17743) Support embedded mode in HBase
Date Tue, 07 Mar 2017 09:40:32 GMT
Yu Li created HBASE-17743:
-----------------------------

             Summary: 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


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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