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https://issues.apache.org/jira/browse/HDFS-10630?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15495376#comment-15495376
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Jason Kace commented on HDFS-10630:
-----------------------------------
Attaching first version of the HDFS Federation state store implementation.
This implementation was designed to mirror the style of data/record/api
serialization used in Yarn-2915. This is the base on top of which various
state store data APIs will be developed.
This patch contains:
1) The basic FederationStateStore manager which maintains the connection to the
data backend. The manager exposes basic CRUD interfaces for data records.
3) A simple file-based data storage backend that is used for light testing. ZK
data store implementation will be in a separate patch.
3) A mock entity that is serialized in the data store via protobuf to
demonstrate the data record object model. This entity is only for
demonstration and testing. I will add a real example and the associated APIs
in HDFS-10687.
4) A simple unit test that uses the FederationStateStore CRUD interfaces to
insert, update and delete a mock data entity.
> Federation State Store
> ----------------------
>
> Key: HDFS-10630
> URL: https://issues.apache.org/jira/browse/HDFS-10630
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: hdfs
> Reporter: Inigo Goiri
>
> Interface to store the federation shared state across Routers.
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