2021-05-18 11:25:38,636+0200 localq-reader-8 ERROR      [c.a.j.c.distribution.localq.LocalQCacheOpReader] [LOCALQ] [VIA-INVALIDATION] Abandoning sending: LocalQCacheOp{cacheName='78f333c9.0000000.bigpicture.LinkRepositoryCache', action=REMOVE, key=6416, value == null ? true, replicatePutsViaCopy=false, creationTimeInMillis=1621301646539} from cache replication queue: [queueId=queue_jira_node2_8_d1d61d3611ef690ebedc4dac0eaa3444, queuePath=/data/jira/localq/queue_jira_node2_8_d1d61d3611ef690ebedc4dac0eaa3444], failuresCount: 10/10. Removing from queue. Error: java.rmi.UnknownHostException: Unknown host: jira-hostname.com; nested exception is: 
    	java.net.UnknownHostException: jira-hostname.com
com.atlassian.jira.cluster.distribution.localq.LocalQCacheOpSender$UnrecoverableFailure: java.rmi.UnknownHostException: Unknown host: jira-hostname.com; nested exception is: 
	java.net.UnknownHostException: jira-hostname.com
	at com.atlassian.jira.cluster.distribution.localq.rmi.LocalQCacheOpRMISender.send(LocalQCacheOpRMISender.java:90)
	at com.atlassian.jira.cluster.distribution.localq.LocalQCacheOpReader.run(LocalQCacheOpReader.java:96)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
Caused by: java.rmi.UnknownHostException: Unknown host: jira-hostname.com; nested exception is: 
	java.net.UnknownHostException: jira-hostname.com

This error can cause multiple issues such as :

• One node not being able to stop https://confluence.atlassian.com/jirakb/jira-7-6-x-only-one-node-will-start-in-cluster-956699096.html
• Cluster replication errors

Environment

• Mulit-node cluster JIRA Data Center

Diagnosis

• Check the clusternode table to verify if a hostname is used instead of IP address in the IP column