[mod_cluster-issues] [JBoss JIRA] (MODCLUSTER-449) Implement ramp-up when starting new nodes
Bogdan Sikora (JIRA)
issues at jboss.org
Thu Sep 8 08:26:00 EDT 2016
[ https://issues.jboss.org/browse/MODCLUSTER-449?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13290537#comment-13290537 ]
Bogdan Sikora edited comment on MODCLUSTER-449 at 9/8/16 8:25 AM:
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Undertow balancer with 2 (Load 10) nodes and in the middle third (Load 90) node
!undertowRamp-up.jpg|thumbnail!
was (Author: bsikora):
Undertow balancer with 2 (Load 10) nodes and in the middle third (Load 90) node
> Implement ramp-up when starting new nodes
> -----------------------------------------
>
> Key: MODCLUSTER-449
> URL: https://issues.jboss.org/browse/MODCLUSTER-449
> Project: mod_cluster
> Issue Type: Feature Request
> Components: Core & Container Integration (Java)
> Affects Versions: 1.2.0.Final, 1.3.0.Final
> Reporter: Radoslav Husar
> Assignee: Radoslav Husar
> Priority: Critical
> Fix For: 2.0.0.Alpha1
>
> Attachments: httpdRamp-up.jpg, undertowRamp-up.jpg
>
>
> IIUC this has been a problem since inception. The problem is that the initial load stays in effect for performing load-balancing decisions until a new stat interval kicks in.
> This effect is mitigated by load decay over time, but for the time a new node joins in, it can get overloaded upon startup.
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