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HDDS-4410. Cache DatanodeDetails#getUuidString(). #1538

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Merged
ayushtkn merged 1 commit into from
Nov 3, 2020
Merged

HDDS-4410. Cache DatanodeDetails#getUuidString(). #1538

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5 changes: 4 additions & 1 deletion hadoop-hdds/common/src/main/java/org/apache/hadoop/hdds/protocol/DatanodeDetails.java
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Original file line number Diff line number Diff line change
Expand Up @@ -47,6 +47,7 @@ public class DatanodeDetails extends NodeImpl implements
* DataNode's unique identifier in the cluster.
*/
private final UUID uuid;
private final String uuidString;

private String ipAddress;
private String hostName;
Expand Down Expand Up @@ -77,6 +78,7 @@ private DatanodeDetails(UUID uuid, String ipAddress, String hostName,
String version, long setupTime, String revision, String buildDate) {
super(hostName, networkLocation, NetConstants.NODE_COST_DEFAULT);
this.uuid = uuid;
this.uuidString = uuid.toString();
this.ipAddress = ipAddress;
this.hostName = hostName;
this.ports = ports;
Expand All @@ -91,6 +93,7 @@ public DatanodeDetails(DatanodeDetails datanodeDetails) {
super(datanodeDetails.getHostName(), datanodeDetails.getNetworkLocation(),
datanodeDetails.getCost());
this.uuid = datanodeDetails.uuid;
this.uuidString = uuid.toString();
this.ipAddress = datanodeDetails.ipAddress;
this.hostName = datanodeDetails.hostName;
this.ports = datanodeDetails.ports;
Expand All @@ -117,7 +120,7 @@ public UUID getUuid() {
* @return UUID of DataNode
*/
public String getUuidString() {
return uuid.toString();
return uuidString;
}

/**
Expand Down