org.apache.hadoop.hbase

Class StripeCompactionsPerformanceEvaluation.SeqShardedDataGenerator

java.lang.Object

org.apache.hadoop.hbase.util.test.LoadTestDataGenerator

org.apache.hadoop.hbase.StripeCompactionsPerformanceEvaluation.SeqShardedDataGenerator

Enclosing class:

StripeCompactionsPerformanceEvaluation

public static class StripeCompactionsPerformanceEvaluation.SeqShardedDataGenerator
extends org.apache.hadoop.hbase.util.test.LoadTestDataGenerator

Field Summary

Fields inherited from class org.apache.hadoop.hbase.util.test.LoadTestDataGenerator

args, INCREMENT, kvGenerator, MUTATE_INFO

Constructor Summary

Constructors

Constructor and Description
SeqShardedDataGenerator(int minValueSize, int maxValueSize, int numPartitions)

Method Summary

Modifier and Type	Method and Description
byte[][]	generateColumnsForCf(byte[] rowKey, byte[] cf) Generates an applicable set of columns to be used for a particular key and family.
byte[]	generateValue(byte[] rowKey, byte[] cf, byte[] column) Generates a value to be used for a particular row/cf/column.
byte[][]	getColumnFamilies() Gets column families for the load test table.
byte[]	getDeterministicUniqueKey(long keyBase) Generates a deterministic, unique hashed row key from a number.
boolean	verify(byte[] rowKey, byte[] cf, byte[] column, byte[] value) Checks that value for a rowKey/cf/column is valid if generated via LoadTestDataGenerator.generateValue(byte[], byte[], byte[])
boolean	verify(byte[] rowKey, byte[] cf, Set<byte[]> columnSet) Checks that columns for a rowKey and cf are valid if generated via LoadTestDataGenerator.generateColumnsForCf(byte[], byte[])

Methods inherited from class org.apache.hadoop.hbase.util.test.LoadTestDataGenerator

beforeGet, beforeMutate, generateData, getArgs, initialize

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SeqShardedDataGenerator

public SeqShardedDataGenerator(int minValueSize,
                               int maxValueSize,
                               int numPartitions)

Method Detail

getDeterministicUniqueKey

public byte[] getDeterministicUniqueKey(long keyBase)

Description copied from class: org.apache.hadoop.hbase.util.test.LoadTestDataGenerator

Generates a deterministic, unique hashed row key from a number. That way, the user can keep track of numbers, without messing with byte array and ensuring key distribution.

Specified by:

getDeterministicUniqueKey in class org.apache.hadoop.hbase.util.test.LoadTestDataGenerator

Parameters:

keyBase - Base number for a key, such as a loop counter.

getColumnFamilies

public byte[][] getColumnFamilies()

Description copied from class: org.apache.hadoop.hbase.util.test.LoadTestDataGenerator

Gets column families for the load test table.

Specified by:

getColumnFamilies in class org.apache.hadoop.hbase.util.test.LoadTestDataGenerator

Returns:

The array of byte[]s representing column family names.

generateColumnsForCf

public byte[][] generateColumnsForCf(byte[] rowKey,
                                     byte[] cf)

Description copied from class: org.apache.hadoop.hbase.util.test.LoadTestDataGenerator

Generates an applicable set of columns to be used for a particular key and family.

Specified by:

generateColumnsForCf in class org.apache.hadoop.hbase.util.test.LoadTestDataGenerator

Parameters:

rowKey - The row key to generate for.

cf - The column family name to generate for.

Returns:

The array of byte[]s representing column names.

generateValue

public byte[] generateValue(byte[] rowKey,
                            byte[] cf,
                            byte[] column)

Description copied from class: org.apache.hadoop.hbase.util.test.LoadTestDataGenerator

Generates a value to be used for a particular row/cf/column.

Specified by:

generateValue in class org.apache.hadoop.hbase.util.test.LoadTestDataGenerator

Parameters:

rowKey - The row key to generate for.

cf - The column family name to generate for.

column - The column name to generate for.

Returns:

The value to use.

verify

public boolean verify(byte[] rowKey,
                      byte[] cf,
                      byte[] column,
                      byte[] value)

Description copied from class: org.apache.hadoop.hbase.util.test.LoadTestDataGenerator

Checks that value for a rowKey/cf/column is valid if generated via LoadTestDataGenerator.generateValue(byte[], byte[], byte[])

Specified by:

verify in class org.apache.hadoop.hbase.util.test.LoadTestDataGenerator

Parameters:

rowKey - The row key to verify for.

cf - The column family name to verify for.

column - The column name to verify for.

value - The value (for example, encountered by read).

Returns:

True iff valid.

verify

public boolean verify(byte[] rowKey,
                      byte[] cf,
                      Set<byte[]> columnSet)

Description copied from class: org.apache.hadoop.hbase.util.test.LoadTestDataGenerator

Checks that columns for a rowKey and cf are valid if generated via LoadTestDataGenerator.generateColumnsForCf(byte[], byte[])

Specified by:

verify in class org.apache.hadoop.hbase.util.test.LoadTestDataGenerator

Parameters:

rowKey - The row key to verify for.

cf - The column family name to verify for.

columnSet - The column set (for example, encountered by read).

Returns:

True iff valid.