voldemort.tools
Class KeySamplerCLI

java.lang.Object
  voldemort.tools.KeySamplerCLI

public class KeySamplerCLI
extends java.lang.Object

The KeySamplerCLI tool samples keys for every partition for every store on a cluster. A distinct file of sampled keys is generated for each store. By default, the "first" key of each partition is sampled. Optional arguments control sampling more keys per partition.

Nested Class Summary

static class	KeySamplerCLI.NodeSampleResult
class	KeySamplerCLI.SampleNodeTask

Constructor Summary

KeySamplerCLI(java.lang.String url, java.lang.String outDir, java.util.List<java.lang.String> storeNames, java.util.List<java.lang.Integer> partitionIds, int nodeParallelism, int recordsPerPartition, int keysPerSecondLimit, int progressPeriodOps)

Method Summary

static void	main(java.lang.String[] args)
boolean	sampleStore(StoreDefinition storeDefinition)
boolean	sampleStores()
void	stop()

Methods inherited from class java.lang.Object

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

Constructor Detail

KeySamplerCLI

public KeySamplerCLI(java.lang.String url,
                     java.lang.String outDir,
                     java.util.List<java.lang.String> storeNames,
                     java.util.List<java.lang.Integer> partitionIds,
                     int nodeParallelism,
                     int recordsPerPartition,
                     int keysPerSecondLimit,
                     int progressPeriodOps)

Method Detail

sampleStores

public boolean sampleStores()

sampleStore

public boolean sampleStore(StoreDefinition storeDefinition)

stop

public void stop()

main

public static void main(java.lang.String[] args)
                 throws java.lang.Exception

Throws:

java.lang.Exception