ReplicaSetStatus (Jackrabbit Oak 1.88.0 API)

java.lang.Object
- org.apache.jackrabbit.oak.plugins.document.mongo.ReplicaSetStatus

All Implemented Interfaces:

com.mongodb.event.ServerMonitorListener, EventListener
```
public class ReplicaSetStatus
extends Object
implements com.mongodb.event.ServerMonitorListener
```
Keeps track of the status of a replica set based on information provided by heartbeat events. This status provides a replica set lag estimate, which can be used to decide whether secondaries are sufficiently up-to-date and read operations can be sent to a secondary. This is particularly useful when causal consistent client sessions are used with the MongoDB Java driver. Read operations shouldn't be sent to a secondary when it lags too much behind, otherwise the read operation will block until it was able to catch up.

Field Summary

Fields
Modifier and Type Field Description

static long UNKNOWN_LAG

Constructor Summary

Constructors
Constructor Description

ReplicaSetStatus()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`long`	`getLagEstimate()`
`void`	`serverHeartbeatSucceeded(com.mongodb.event.ServerHeartbeatSucceededEvent event)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.mongodb.event.ServerMonitorListener
serverHearbeatStarted, serverHeartbeatFailed

- Field Detail
  - UNKNOWN_LAG
```
public static final long UNKNOWN_LAG
```
    See Also:
    
    Constant Field Values
- Constructor Detail
  - ReplicaSetStatus
```
public ReplicaSetStatus()
```
- Method Detail
  - serverHeartbeatSucceeded
```
public void serverHeartbeatSucceeded(com.mongodb.event.ServerHeartbeatSucceededEvent event)
```
    Specified by:
    
    serverHeartbeatSucceeded in interface com.mongodb.event.ServerMonitorListener
  - getLagEstimate
```
public long getLagEstimate()
```