jiajunwang commented on a change in pull request #1417:
URL: https://github.com/apache/helix/pull/1417#discussion_r496409242
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File path:
helix-core/src/main/java/org/apache/helix/model/ParticipantHistory.java
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@@ -76,7 +80,15 @@ public void reportOffline() {
* @return
*/
public void reportOnline(String sessionId, String version) {
- updateSessionHistory(sessionId, version);
+ String hostname;
+ try {
+ hostname = InetAddress.getLocalHost().getHostName();
+ } catch (UnknownHostException e) {
+ LOG.error("Failed to get host name. Use {} for the participant history
recording.",
Review comment:
This error indicates the IP of this host cannot be translated to a
hostname. This may lead to some connectivity issues. Moreover, the information
record in history will be wrong. So I think it is ERROR instead of WARN. If
such case happen frequently, then the application admin needs to take a look.
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