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From mrooding <ad...@webresource.nl>
Subject JobManager web interface redirect strategy when running in HA
Date Tue, 31 Oct 2017 12:55:03 GMT
Hi

We're running 3 job managers in high availability cluster mode backed by
OpenStack/Openshift. We're currently exposing all 3 job managers using 3
different routes (flink-1.domain.tld, flink-2.domain.tld,
flink-3.domain.tld). When accessing the route for a job manager which isn't
the leader it automatically redirects the user to the host and port of the
leading job manager. From what I've seen in the source code the rpc address
and port are being used to redirect. Since the internal hostnames are not
accessible outside the cluster this obviously doesn't work.

The nicest solution would be a single route (flink.domain.tld) which would
correctly delegate requests to the leading job manager. The second best
solution would probably be the possibility to declare a public URL in the
flink configuration file.

I'd be more than happy to contribute to Flink and add support for this but
I'd love to hear your ideas about it.

Kind regards

Marc




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