[infinispan-issues] [JBoss JIRA] (ISPN-6673) Implement Rolling Upgrades with Kubernetes

[Sebastian Łaskawiec (JIRA)]

    [ https://issues.jboss.org/browse/ISPN-6673?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13269082#comment-13269082 ] 

Sebastian Łaskawiec commented on ISPN-6673:
-------------------------------------------

In library mode it is also possible to obtain JMX connection. The Java process inside the container should have the following options (of course they might differ depending on environment):
{code}
-Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.port=9010 -Dcom.sun.management.jmxremote.local.only=false -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false
{code}

An OpenShift developer needs to forward JMX ports into his own machine:
{code}
oc port-forward infinispan-simple-tutorials-kubernetes-2-rezpo 9010:9010
{code}

Then he might run the JConsole (or other tool for JMX):
{code}
./jconsole.sh 127.0.0.1:9010
{code}

> Implement Rolling Upgrades with Kubernetes
> ------------------------------------------
>
>                 Key: ISPN-6673
>                 URL: https://issues.jboss.org/browse/ISPN-6673
>             Project: Infinispan
>          Issue Type: Feature Request
>          Components: Cloud Integrations
>            Reporter: Sebastian Łaskawiec
>            Assignee: Sebastian Łaskawiec
>
> There are 2 mechanisms which seems to do the same but are totally different:
> * [Kubernetes Rolling Update|http://kubernetes.io/docs/user-guide/rolling-updates/] - replaces Pods in controllable fashon
> * [Infinispan Rolling Updgrate|http://infinispan.org/docs/stable/user_guide/user_guide.html#_Rolling_chapter] - a procedure for upgrading Infinispan or changing the configuration
> Kubernetes Rolling Updates can be used very easily for changing the configuration however if changes are not runtime-compatible, one might loss data. Potential way to avoid this is to use a Cache Store. All other changes must be propagated using Infinispan Rolling Upgrade procedure.



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