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https://issues.apache.org/jira/browse/IGNITE-11907?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16872184#comment-16872184
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Ivan Pavlukhin commented on IGNITE-11907:
-----------------------------------------

There are following cases:
1. A query is registered (for a first time) and some of nodes does not have 
needed classes.
2. A new node without needed classes tries to join a topology.

Affinity nodes and node filter should be taken into account.

> Registration of continuous query should fail if nodes don't have remote 
> filter class
> ------------------------------------------------------------------------------------
>
>                 Key: IGNITE-11907
>                 URL: https://issues.apache.org/jira/browse/IGNITE-11907
>             Project: Ignite
>          Issue Type: Bug
>    Affects Versions: 2.7
>            Reporter: Denis Mekhanikov
>            Assignee: Ivan Pavlukhin
>            Priority: Major
>         Attachments: 
> ContinuousQueryRemoteFilterMissingInClassPathSelfTest.java
>
>
> If one of data nodes doesn't have a remote filter class, then registration of 
> continuous queries should fail with an exception. Currently nodes fail 
> instead.
> Reproducer is attached: 
> [^ContinuousQueryRemoteFilterMissingInClassPathSelfTest.java]



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