Package com.yahoo.documentapi.messagebus.protocol

Class StoragePolicy

java.lang.Object

com.yahoo.documentapi.messagebus.protocol.SlobrokPolicy

com.yahoo.documentapi.messagebus.protocol.StoragePolicy

All Implemented Interfaces:

DocumentProtocolRoutingPolicy, com.yahoo.messagebus.routing.RoutingPolicy

Direct Known Subclasses:

ContentPolicy

public class StoragePolicy
extends SlobrokPolicy

Routing policy to determine which distributor in a storage cluster to send data to. Using different key=value parameters separated by semicolon (";"), the user can control which cluster to send to. cluster=[clusterName] (Mandatory, determines the cluster name) config=[config] (Optional, a comma separated list of config servers to use. Used to talk to clusters not defined in this vespa application) slobrokconfigid=[id] (Optional, use given config id for slobrok instead of default) clusterconfigid=[id] (Optional, use given config id for distribution instead of default)

Author:

Haakon Humberset

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	StoragePolicy.BucketIdCalculator	Helper class to get the bucket identifier of a message.
static class	StoragePolicy.DistributorSelectionLogic	Class handling the logic of picking a distributor
static class	StoragePolicy.HostFetcher	Helper class to match a host pattern with node to use.
static class	StoragePolicy.Parameters	Class parsing the semicolon separated parameter string and exposes the appropriate value to the policy.
static class	StoragePolicy.SlobrokHostFetcher	Host fetcher using a slobrok mirror to find the hosts.
static class	StoragePolicy.SlobrokHostPatternGenerator	This class merely generates slobrok a host pattern for a given distributor.

Field Summary

Fields

Modifier and Type	Field	Description
static java.lang.String	owningBucketStates

Constructor Summary

Constructors

Constructor	Description
StoragePolicy(StoragePolicy.Parameters p)	Constructor specifying a bit more in detail, so we can override what needs to be overridden in tests
StoragePolicy(java.lang.String param)	Constructor used in production.
StoragePolicy(java.util.Map<java.lang.String,java.lang.String> params)

Method Summary

Modifier and Type	Method	Description
void	destroy()
void	merge(com.yahoo.messagebus.routing.RoutingContext context)
void	select(com.yahoo.messagebus.routing.RoutingContext context)

Methods inherited from class com.yahoo.documentapi.messagebus.protocol.SlobrokPolicy

lookup, parse

Methods inherited from class java.lang.Object

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

Field Detail

owningBucketStates

public static final java.lang.String owningBucketStates

See Also:

Constant Field Values

Constructor Detail

StoragePolicy

public StoragePolicy(java.lang.String param)

Constructor used in production.

StoragePolicy

public StoragePolicy(java.util.Map<java.lang.String,java.lang.String> params)

StoragePolicy

public StoragePolicy(StoragePolicy.Parameters p)

Constructor specifying a bit more in detail, so we can override what needs to be overridden in tests

Method Detail

select

public void select(com.yahoo.messagebus.routing.RoutingContext context)

merge

public void merge(com.yahoo.messagebus.routing.RoutingContext context)

destroy

public void destroy()