WARN NAKACK "discarded message from non-member" messages in JBoss EAP log.
Issue
- There are some messages that appear in the
server.logas shown below. Can you please help to find out the reason behind these messages?
WARN [org.jgroups.protocols.pbcast.NAKACK] 10.10.10.10:46001] discarded message from non-member 10.10.10.20:46002, my view is [10.10.10.10:46001|0] [10.10.10.10:46001]
- A few days back i had faced a strange problem in existing infrastructure. The whole application stopped responding. While investigating "server.log" file following message was appearing. It was strange that only one node went out of cluster but the whole application stopped responding. first i just stopped the JBoss instance on the affected machine and application resumed its services normally. Then started back the affected instance and everything became normal.
5 WARN [NAKACK] 192.10.10.10:55200] discarded message from non-member 192.20.20.20:55200, my view is [192.x.x.x:55200|12] [192.x.x.x:55200, 192.x.x.x:55200, 192.x.x.x:55200, 192.x.x.x:55200, 192.x.x.x:55200, 192.x.x.x:55200, 192.x.x.x:55200, 192.x.x.x:55200, 192.x.x.x:55200, 192.x.x.x:55200, 192.x.x.x:55200]
- Two nodes running on different machines are not able to join cluster
Environment
- Red Hat JBoss Enterprise Application Platform (EAP)
- 4.2
- 4.3
- 5.x
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