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https://issues.apache.org/jira/browse/HBASE-23647?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Nick Dimiduk updated HBASE-23647:
---------------------------------
Release Note:
<!-- markdown -->
Enables master based registry as the default registry used by clients to fetch
connection metadata.
Refer to the section "Master Registry" in the client documentation for more
details and advantages
of this implementation over the default Zookeeper based registry.
Configuration parameter that controls the registry in use:
`hbase.client.registry.impl`
Where to set this: HBase client configuration (hbase-site.xml)
Possible values:
- `org.apache.hadoop.hbase.client.ZKConnectionRegistry` (For ZK based registry
implementation)
- `org.apache.hadoop.hbase.client.MasterRegistry` (New, for master based
registry implementation)
Notes on defaults:
- For v3.0.0 and later, MasterRegistry is the default registry
- For all releases in 2.x line, ZK based registry is the default.
This feature has been back ported to 2.3.0 and later releases. MasterRegistry
can be enabled by setting the following client configuration.
```
<property>
<name>hbase.client.registry.impl</name>
<value>org.apache.hadoop.hbase.client.MasterRegistry</value>
</property>
```
was:
Enables master based registry as the default registry used by clients to fetch
connection metadata. Refer to the section "Master Registry" in the client
documentation for more details and advantages of this implementation over the
default Zookeeper based registry.
Configuration parameter that controls the registry in use:
hbase.client.registry.impl
Where to set this: HBase client configuration (hbase-site.xml)
Possible values:
- org.apache.hadoop.hbase.client.ZKConnectionRegistry (For ZK based registry
implementation)
- org.apache.hadoop.hbase.client.MasterRegistry (New, for master based registry
implementation)
Notes on defaults:
- For v3.0.0 and later, MasterRegistry is the default registry
- For all releases in 2.x line, ZK based registry is the default. This feature
has been back ported to 2.3.0 and later releases. MasterRegistry can be enabled
by setting the following client configuration.
<property>
<name>hbase.client.registry.impl</name>
<value>org.apache.hadoop.hbase.client.MasterRegistry</value>
</property>
Edited to Markdown-ify [~bharathv]'s excellent release note.
> Make MasterRegistry the default registry impl
> ---------------------------------------------
>
> Key: HBASE-23647
> URL: https://issues.apache.org/jira/browse/HBASE-23647
> Project: HBase
> Issue Type: Sub-task
> Components: Client
> Affects Versions: 3.0.0
> Reporter: Bharath Vissapragada
> Assignee: Bharath Vissapragada
> Priority: Major
> Fix For: 3.0.0, 2.3.0, HBASE-18095
>
>
> Now that we are close to getting the registry implementation patch in, the
> idea here is to make it the default implementation in 3.0.0 and this means
> - No known bugs with the implementation
> - No known performance issues
> - Entire nightly test suite is green (and without flakes).
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