gengliangwang commented on pull request #29820:
URL: https://github.com/apache/spark/pull/29820#issuecomment-903232760
@drauschenbach We can treat the prefix as the ID of one cluster. For
example, let's say the prefix is "cluster1" and the reverse proxy is nginx, and
both master 0 and master 1 are configurated with the prefix "/cluster1".
Before failover, "/cluster1" maps to IP of master0. Accessing master URL
starting with "/cluster1" will redirect to master 0. All the shown worker UI
are with prefix as well, so that accessing worker URL will go to nginx first,
and then master 0, and then the exact worker.
After failover, I think you can try just map "/cluster1" to the IP of
master1 in nginx.
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