Package org.apache.hadoop.hdfs.server.federation.store.records
@Private
@Evolving
package org.apache.hadoop.hdfs.server.federation.store.records
Contains the abstract definitions of the state store data records. The state
store supports multiple multiple data records.
Data records inherit from a common class
BaseRecord. Data records are serialized when written to the data store using
a modular serialization implementation. The default is profobuf
serialization. Data is stored as rows of records of the same type with each
data member in a record representing a column.
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ClassesClassDescriptionAbstract base of a data record in the StateStore.Data record indicating a specific name service ID has been disabled and is no longer valid.Data schema for storing NN registration information in the
StateStoreService.Data schema for storing NN stats in theStateStoreService.Data schema forMountTableStoredata stored in theStateStoreService.Query<T extends BaseRecord>Check if a record matches a query.QueryResult<T extends BaseRecord>Encapsulates a state store query result that includes a set of records and a time stamp for the result.Entry to log the state of aRouterin theStateStoreService.Entry to track the version of the State Store data stored in the State Store by a Router.