org.apache.hadoop.hbase.client.backoff
Class ExponentialClientBackoffPolicy

java.lang.Object
  org.apache.hadoop.hbase.client.backoff.ExponentialClientBackoffPolicy

All Implemented Interfaces:

ClientBackoffPolicy

@InterfaceAudience.Public
@InterfaceStability.Unstable
public class ExponentialClientBackoffPolicy
extends Object
implements ClientBackoffPolicy

Simple exponential backoff policy on for the client that uses a percent^4 times the max backoff to generate the backoff time.

Field Summary

static long	DEFAULT_MAX_BACKOFF
static String	MAX_BACKOFF_KEY

Fields inherited from interface org.apache.hadoop.hbase.client.backoff.ClientBackoffPolicy

BACKOFF_POLICY_CLASS

Constructor Summary

ExponentialClientBackoffPolicy(org.apache.hadoop.conf.Configuration conf)

Method Summary

long	getBackoffTime(ServerName serverName, byte[] region, ServerStatistics stats)

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_MAX_BACKOFF

public static final long DEFAULT_MAX_BACKOFF

See Also:

Constant Field Values

MAX_BACKOFF_KEY

public static final String MAX_BACKOFF_KEY

See Also:

Constant Field Values

Constructor Detail

ExponentialClientBackoffPolicy

public ExponentialClientBackoffPolicy(org.apache.hadoop.conf.Configuration conf)

Method Detail

getBackoffTime

public long getBackoffTime(ServerName serverName,
                           byte[] region,
                           ServerStatistics stats)

Specified by:

getBackoffTime in interface ClientBackoffPolicy

Returns:

the number of ms to wait on the client based on the