org.apache.hudi.index.hbase

Interface HBaseIndexQPSResourceAllocator

All Superinterfaces:

Serializable

All Known Implementing Classes:

DefaultHBaseQPSResourceAllocator

public interface HBaseIndexQPSResourceAllocator
extends Serializable

HBaseIndexQPSResourceAllocator defines methods to manage resource allocation for HBase index operations.

Method Summary

Modifier and Type	Method and Description
float	acquireQPSResources(float desiredQPSFraction, long numPuts) This method acquires the requested QPS Fraction against HBase cluster for index operation.
float	calculateQPSFractionForPutsTime(long numPuts, int desiredPutsTimeInSecs) This method returns the QPS Fraction value that needs to be acquired such that the respective HBase index operation can be completed in desiredPutsTime.
void	releaseQPSResources() This method releases the acquired QPS Fraction.

Method Detail

calculateQPSFractionForPutsTime

float calculateQPSFractionForPutsTime(long numPuts,
                                      int desiredPutsTimeInSecs)

This method returns the QPS Fraction value that needs to be acquired such that the respective HBase index operation can be completed in desiredPutsTime.

Parameters:

numPuts - Number of inserts to be written to HBase index

desiredPutsTimeInSecs - Total expected time for the HBase inserts operation

Returns:

QPS fraction that needs to be acquired.

acquireQPSResources

float acquireQPSResources(float desiredQPSFraction,
                          long numPuts)

This method acquires the requested QPS Fraction against HBase cluster for index operation.

Parameters:

desiredQPSFraction - QPS fraction that needs to be requested and acquired

numPuts - Number of inserts to be written to HBase index

Returns:

value of the acquired QPS Fraction.

releaseQPSResources

void releaseQPSResources()

This method releases the acquired QPS Fraction.