Abhayjit Kharbanda created KARAF-7150:
-----------------------------------------
Summary: Hazelcast TcpIPConfig is not reloaded on changes to
hazelcast.xml
Key: KARAF-7150
URL: https://issues.apache.org/jira/browse/KARAF-7150
Project: Karaf
Issue Type: Bug
Affects Versions: 4.3.1
Reporter: Abhayjit Kharbanda
While using kubernetes-discovery with cellar I came across this issue . The
default etc/hazelcast.xml has tcp-ip disabled and multicast enabled.
In this scenario , when kubernetes-discovery runs and discovers members ,
adding them to tcpConfig throws an NPE
{noformat}
java.lang.NullPointerException: null
at
org.apache.karaf.cellar.hazelcast.factory.HazelcastConfigurationManager.isUpdated(HazelcastConfigurationManager.java:89)
~[!/:?] at
org.apache.karaf.cellar.hazelcast.factory.HazelcastServiceFactory.update(HazelcastServiceFactory.java:52)
~[!/:?]
at
org.apache.karaf.cellar.hazelcast.internal.osgi.Activator.updated(Activator.java:433)
[!/:?]
at
org.apache.karaf.cellar.hazelcast.internal.osgi.Activator.updated(Activator.java:424)
[!/:?]
at
org.apache.felix.cm.impl.helper.ManagedServiceTracker.updated(ManagedServiceTracker.java:189)
[!/:?]
at
org.apache.felix.cm.impl.helper.ManagedServiceTracker.updateService(ManagedServiceTracker.java:152)
[!/:?]
at
org.apache.felix.cm.impl.helper.ManagedServiceTracker.provideConfiguration(ManagedServiceTracker.java:85)
[!/:?]
at
org.apache.felix.cm.impl.ConfigurationManager$UpdateConfiguration.run(ConfigurationManager.java:1409)
[!/:?]
at
org.apache.felix.cm.impl.UpdateThread.run0(UpdateThread.java:122) [!/:?]
at
org.apache.felix.cm.impl.UpdateThread.run(UpdateThread.java:84) [!/:?]
at java.lang.Thread.run(Unknown
Source) [?:?]
{noformat}
I updated the etc/hazelcast.xml to enable tcp-ip and expected this error to go
away but I still continued to get the above NPE since TcpIpConfig wasnt updated
.
I had to manually restart hazelcast bundle to fix the above error post the
hazelcast.xml changes.
Can we look at triggering the update of TcpIpConfig in case of changes and also
if possible update this config automatically when cellar-kubernetes feature is
installed to avoid having to update the etc/hazelcast.xml manually
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