com.aerospike.client.metrics

Class MetricsWriter

java.lang.Object

com.aerospike.client.metrics.MetricsWriter

All Implemented Interfaces:

MetricsListener

public final class MetricsWriter
extends Object
implements MetricsListener

Default metrics listener. This implementation writes periodic metrics snapshots to a file which will later be read and forwarded to OpenTelemetry by a separate offline application.

Constructor Summary

Constructors

Constructor and Description
MetricsWriter(String dir) Initialize metrics writer.

Method Summary

Modifier and Type	Method and Description
void	onDisable(com.aerospike.client.cluster.Cluster cluster) Write final cluster metrics snapshot to file and then close the file.
void	onEnable(com.aerospike.client.cluster.Cluster cluster, MetricsPolicy policy) Open timestamped metrics file in append mode and write header indicating what metrics will be stored.
void	onNodeClose(Node node) Write final node metrics snapshot on node that will be closed.
void	onSnapshot(com.aerospike.client.cluster.Cluster cluster) Write cluster metrics snapshot to file.

Methods inherited from class java.lang.Object

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

Constructor Detail

MetricsWriter

public MetricsWriter(String dir)

Initialize metrics writer.

Method Detail

onEnable

public void onEnable(com.aerospike.client.cluster.Cluster cluster,
                     MetricsPolicy policy)

Open timestamped metrics file in append mode and write header indicating what metrics will be stored.

Specified by:

onEnable in interface MetricsListener

onSnapshot

public void onSnapshot(com.aerospike.client.cluster.Cluster cluster)

Write cluster metrics snapshot to file.

Specified by:

onSnapshot in interface MetricsListener

onNodeClose

public void onNodeClose(Node node)

Write final node metrics snapshot on node that will be closed.

Specified by:

onNodeClose in interface MetricsListener

onDisable

public void onDisable(com.aerospike.client.cluster.Cluster cluster)

Write final cluster metrics snapshot to file and then close the file.

Specified by:

onDisable in interface MetricsListener