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https://issues.apache.org/jira/browse/FLUME-938?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alexander Lorenz-Alten reopened FLUME-938:
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> Master does not detect conflicts in the collector ports
> -------------------------------------------------------
>
> Key: FLUME-938
> URL: https://issues.apache.org/jira/browse/FLUME-938
> Project: Flume
> Issue Type: Bug
> Components: Configuration, Master, Node
> Affects Versions: v0.9.4
> Environment: Debian Squeeze
> Reporter: Thomas Vachon
> Priority: Critical
>
> We had 10 logical flows/nodes setup on our collectors. The default HTTP
> status port is 11 from the beginning of the range of the collector ports.
> With the addition of the host/logical mapping, that pushes the (now) 11th
> mapping into a conflict with the HTTP status port.
> The HTTP status port is already claimed so the collector goes one above
> (35863 in the default setup case). The master failed to see that the RPC
> port was not bound to 35862 (the next in the series) and pointed all auto
> chained nodes at 35862 causing log delivery to fail.
> The master should check that what it expects on the port is listening on the
> port in my opinion. It would have been very easy to see that the collector
> was not listening on 35862.
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