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https://issues.apache.org/jira/browse/HDFS-10630?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15965369#comment-15965369
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Chris Douglas commented on HDFS-10630:
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* Are the File impls primarily for testing? Or do routers communicate through
the FS?
* Should {{StateStoreConnectionMonitorService#serviceInit}} call
{{super.serviceInit(conf)}}?
* {{PeriodicService}} probably shouldn't accept calls to its set\* methods
after it's started
* start/stop of {{PeriodicService}} should probably be synchronized
* Why is the {{StateStoreService}} a singleton? It doesn't seem to follow, or
benefit, from the {{Service}} pattern.
* The {{StateStoreUtils}} serialization methods using reflection are very
general...
> Federation State Store FS Implementation
> ----------------------------------------
>
> Key: HDFS-10630
> URL: https://issues.apache.org/jira/browse/HDFS-10630
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: hdfs
> Reporter: Inigo Goiri
> Assignee: Jason Kace
> Attachments: HDFS-10630.001.patch, HDFS-10630.002.patch,
> HDFS-10630-HDFS-10467-003.patch, HDFS-10630-HDFS-10467-004.patch,
> HDFS-10630-HDFS-10467-005.patch
>
>
> Interface to store the federation shared state across Routers.
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