[
https://issues.apache.org/jira/browse/IGNITE-12896?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17083391#comment-17083391
]
Vyacheslav Koptilin commented on IGNITE-12896:
----------------------------------------------
Hello [~haizaar],
Yes, it seems the following pages should be updated:
- provide comprehensive information about {{excludeNeighbors}}
[https://apacheignite.readme.io/docs/affinity-collocation#section-affinity-function]
- correct example
[ClusterNodeAttributeAffinityBackupFilter|[https://ignite.apache.org/releases/latest/javadoc/org/apache/ignite/cache/affinity/rendezvous/ClusterNodeAttributeAffinityBackupFilter.html]]
By the way, {{RendezvousAffinityFunction}} clearly describes this aspect
{code:java}
/**
* Sets optional backup filter.
* ...
* <p>
* Note that {@code affinityBackupFilter} is ignored if {@code
excludeNeighbors} is set to {@code true}.
* ...
*/
public RendezvousAffinityFunction setAffinityBackupFilter(
IgniteBiPredicate<ClusterNode, List<ClusterNode>> affinityBackupFilter)
{...}
{code}
> excludeNeighbors=true breaks zone-awareness
> -------------------------------------------
>
> Key: IGNITE-12896
> URL: https://issues.apache.org/jira/browse/IGNITE-12896
> Project: Ignite
> Issue Type: Bug
> Components: cache
> Affects Versions: 2.8
> Reporter: Zaar Hai
> Priority: Major
>
> Good day,
>
> If I configure node config as in the official [example
> |[https://ignite.apache.org/releases/latest/javadoc/org/apache/ignite/cache/affinity/rendezvous/ClusterNodeAttributeAffinityBackupFilter.html]]
> but also set excludeNeighbors to true, then zone-aware partition
> distribution simply doesn't work. No errors or warnings that found - it is
> just does not work.
> From documentation it's not clear (at least to me) that excludeNeighbors=true
> has such a critical implication on zone-awareness info. From what is sounds,
> zone-awareness is an extension of excludeNeighbors.
> I think this behavour should be fixed or at least documented with big red
> signs. As it's now, it resulted in several days of my time batting with
> zone-aware setup.
> There are more details here in this StackOverflow question:
> [https://stackoverflow.com/questions/61062929/apache-ignite-zonerack-aware-parititons/61189356#61189356]
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
