Details
Description
Getting the datanode reports is an expensive operation and can be executed very frequently by the UI and watchdogs.
To reduce this load, this information is cached in the Router.
This cached information expires after some time (configurable).
Attachments
Attachments
Issue Links
- relates to
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HDFS-13364 RBF: Support NamenodeProtocol in the Router
- Resolved
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HDFS-15432 RBF: Move cache datanode reports from NamenodeBeanMetrics to RouterRpcServer
- Open