Package com.linkedin.davinci.stats.ingestion.heartbeat

Class HeartbeatKey

java.lang.Object

com.linkedin.davinci.stats.ingestion.heartbeat.HeartbeatKey

public final class HeartbeatKey
extends Object

Composite key for the flattened heartbeat timestamp map.

Identity is (storeName, version, partition, region). The SLO classification labels writeType, chunkingStatus, locality, replicationMode are passenger fields: resolved once when the caller (SIT) builds the key, carried along the per-record hot path to avoid repeated derivation, and intentionally excluded from equals(java.lang.Object)/hashCode.

Constructor Summary

Constructors

Constructor	Description
HeartbeatKey(String storeName, int version, int partition, String region)	Lookup-only constructor: builds a key without the SLO labels.
HeartbeatKey(String storeName, int version, int partition, String region, VeniceStoreWriteType writeType, VeniceChunkingStatus chunkingStatus, VeniceRegionLocality locality)	Deprecated. use the 8-arg constructor so the key also carries VeniceReplicationMode.
HeartbeatKey(String storeName, int version, int partition, String region, VeniceStoreWriteType writeType, VeniceChunkingStatus chunkingStatus, VeniceRegionLocality locality, VeniceReplicationMode replicationMode)

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object o)
VeniceChunkingStatus	getChunkingStatus()	Public accessor for cross-package tests; the package-private field is the canonical source.
VeniceRegionLocality	getLocality()	Public accessor for cross-package tests; the package-private field is the canonical source.
VeniceReplicationMode	getReplicationMode()	Public accessor for cross-package tests; the package-private field is the canonical source.
VeniceStoreWriteType	getWriteType()	Public accessor for cross-package tests; the package-private field is the canonical source.
int	hashCode()
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

HeartbeatKey

public HeartbeatKey(String storeName,
 int version,
 int partition,
 String region)

Lookup-only constructor: builds a key without the SLO labels. Use only when the resulting key is consumed for identity (map lookup, equality) and never flows to per-record OTel emission. The canonical hot-path constructor is the 8-arg variant below — that one is what the SIT/PCS pipeline uses so each record carries pre-resolved enum references.

HeartbeatKey

@Deprecated
public HeartbeatKey(String storeName,
 int version,
 int partition,
 String region,
 VeniceStoreWriteType writeType,
 VeniceChunkingStatus chunkingStatus,
 VeniceRegionLocality locality)

Deprecated.

use the 8-arg constructor so the key also carries VeniceReplicationMode. Retained for source/binary compatibility with existing callers of this previously-canonical 7-arg constructor. Since keys built here can still reach per-record OTel emission (e.g. via recordLeaderRecordTimestamp/recordFollowerRecordTimestamp), which rejects a null dimension value, replicationMode defaults to VeniceReplicationMode.ACTIVE_ACTIVE rather than null. Active-active is the safer default because it is the stricter/superset classification: it never claims a cross-region-replicated store is exempt from AA overhead.

HeartbeatKey

public HeartbeatKey(String storeName,
 int version,
 int partition,
 String region,
 VeniceStoreWriteType writeType,
 VeniceChunkingStatus chunkingStatus,
 VeniceRegionLocality locality,
 VeniceReplicationMode replicationMode)

Method Details

getWriteType

public VeniceStoreWriteType getWriteType()

Public accessor for cross-package tests; the package-private field is the canonical source.

getChunkingStatus

public VeniceChunkingStatus getChunkingStatus()

Public accessor for cross-package tests; the package-private field is the canonical source.

getLocality

public VeniceRegionLocality getLocality()

Public accessor for cross-package tests; the package-private field is the canonical source.

getReplicationMode

public VeniceReplicationMode getReplicationMode()

Public accessor for cross-package tests; the package-private field is the canonical source.

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object