All Classes (Apache Hadoop Dynamometer Workload Simulator 3.4.1.100-eep-941 API)

All Classes Interface Summary Class Summary Enum Summary
Class	Description
AuditCommandParser	This interface represents a pluggable command parser.
AuditLogDirectParser	This `AuditCommandParser` is used to read commands from an audit log in the original format audit logs are produced in with a standard configuration.
AuditLogHiveTableParser	This `AuditCommandParser` is used to read commands assuming that the input was generated by a Hive query storing uncompressed output files, in which fields should be separated by the start-of-heading (U+0001) character.
AuditReplayMapper	AuditReplayMapper replays the given audit trace against the NameNode under test.
AuditReplayMapper.CommandType	Define the type of command, either read or write.
AuditReplayMapper.ReplayCommand	Definitions of the various commands that can be replayed.
AuditReplayMapper.REPLAYCOUNTERS	`Counter` definitions for replay.
AuditReplayReducer	AuditReplayReducer aggregates the returned latency values from `AuditReplayMapper` and sums them up by `UserCommandKey`, which combines the user's id that ran the command and the type of the command (READ/WRITE).
AuditReplayThread	This class replays each audit log entry at a specified timestamp in the future.
CountTimeWritable	UserCommandKey is a `Writable` used as a composite value that accumulates the count and cumulative latency of replayed commands.
CreateFileMapper	CreateFileMapper continuously creates 1 byte files for the specified duration to increase the number of file objects on the NN.
CreateFileMapper.CREATEFILECOUNTERS	Custom `Counter` definitions.
NoSplitTextInputFormat	A simple `TextInputFormat` that disables splitting of files.
UserCommandKey	UserCommandKey is a `Writable` used as a composite key combining the user id, name, and type of a replayed command.
VirtualInputFormat<K,V>	An input format which does not read any input, but rather starts a configurable number of mappers and runs them for a configurable duration.
VirtualInputSplit	A fake input split.
VirtualRecordReader<K,V>	A simple fake record reader which simply runs for some time duration.
WorkloadDriver	This is the driver for generating generic workloads against a NameNode under test.
WorkloadMapper<KEYIN,VALUEIN,KEYOUT,VALUEOUT>	Represents the base class for a generic workload-generating mapper.