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https://issues.jboss.org/browse/WFLY-6762?page=com.atlassian.jira.plugin....
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Preeta Kuruvilla updated WFLY-6762:
-----------------------------------
Description:
In your mail related to WFLY-6749 you has said the below :-
*The default stack contains the following failure detection protocols:
FD_SOCK
FD_ALL
These protocols are described here:
http://www.jgroups.org/manual/index.html#FailureDetection
I suspect that your method of simulating a failure - by disabling the network of the host
machine is not being detected by FD_SOCK. It will however, be detected by FD_ALL, but only
after 1 minute. The heartbeat timeout used by FD_ALL can be manipulated via the timeout
property.
e.g.
<protocol type="FD_ALL" ><property
name="timeout">60000</property></protocol>
*
Thanks for the quick response on WFLY-6749.
Based on your suggestion, I had a taken a look at the testing scenarios mentioned in
"Table 29. Failure detection behavior" in the link that you provided-
http://www.jgroups.org/manual/index.html#FailureDetection. No where its mentioned that
disabling a network on a node, is a valid testing scenario in Wildfly cluster.
The Failover is working properly when the network on a node is disabled on a weblogic
cluster for our application. However it doesn't work and it hampers the application
functionality on Wildfly cluster when we try to disable the network on a node in Wildfly
cluster.
However as I said earlier, the failover on wildfly cluster works when we stop a node from
admin console or give Ctrl + C to stop the services on a node.
Would like to get a confirmation from you that disabling the network on a node is not the
valid failover testing scenario for wildfly cluster.
Thanks,
Preeta
Is Network Disabling on a Node, a valid test scenario for testing
Cluster Failover
----------------------------------------------------------------------------------
Key: WFLY-6762
URL:
https://issues.jboss.org/browse/WFLY-6762
Project: WildFly
Issue Type: CTS Challenge
Components: Clustering
Affects Versions: 8.2.0.Final
Reporter: Preeta Kuruvilla
Assignee: Paul Ferraro
Priority: Critical
In your mail related to WFLY-6749 you has said the below :-
*The default stack contains the following failure detection protocols:
FD_SOCK
FD_ALL
These protocols are described here:
http://www.jgroups.org/manual/index.html#FailureDetection
I suspect that your method of simulating a failure - by disabling the network of the host
machine is not being detected by FD_SOCK. It will however, be detected by FD_ALL, but only
after 1 minute. The heartbeat timeout used by FD_ALL can be manipulated via the timeout
property.
e.g.
<protocol type="FD_ALL" ><property
name="timeout">60000</property></protocol>
*
Thanks for the quick response on WFLY-6749.
Based on your suggestion, I had a taken a look at the testing scenarios mentioned in
"Table 29. Failure detection behavior" in the link that you provided-
http://www.jgroups.org/manual/index.html#FailureDetection. No where its mentioned that
disabling a network on a node, is a valid testing scenario in Wildfly cluster.
The Failover is working properly when the network on a node is disabled on a weblogic
cluster for our application. However it doesn't work and it hampers the application
functionality on Wildfly cluster when we try to disable the network on a node in Wildfly
cluster.
However as I said earlier, the failover on wildfly cluster works when we stop a node from
admin console or give Ctrl + C to stop the services on a node.
Would like to get a confirmation from you that disabling the network on a node is not the
valid failover testing scenario for wildfly cluster.
Thanks,
Preeta
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