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https://issues.apache.org/jira/browse/HBASE-20224?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16442972#comment-16442972
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Josh Elser commented on HBASE-20224:
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{quote}Thats a crappy runtime exception. Its failing because address in use?
Port clash?
{quote}
Yep, trying to bring up another Master on 16000 and failing cuz that port is
already taken.
{quote}My understanding is that the patch(es) here do this. They turn on random
ports for test context by setting random ports config to true in an
hbase-site.xml that is read in test context (In hbase, tests get a special
hbase-site that has configs that make sense for test context; e.g. disable UI
by default). Otherwise, ports are not random so you can find your UI in the
expected place when you run standalone.
{quote}
Ok, that's what I took from it too.
The solution that I think would be better would be to find a way to disable the
random ports when you run standalone (and default to the random ports). I would
say a minicluster using random ports by default is the "common case" and the
standalone instance is the "exception". I'm not sure if there's a good way we
can encapsulate this (i.e. can we know that we're in the context of a
standalone instance and unset the random ports?)
Thanks for engaging :)
> Web UI is broken in standalone mode
> -----------------------------------
>
> Key: HBASE-20224
> URL: https://issues.apache.org/jira/browse/HBASE-20224
> Project: HBase
> Issue Type: Bug
> Components: UI, Usability
> Affects Versions: 2.0.0-beta-2
> Reporter: Umesh Agashe
> Assignee: Umesh Agashe
> Priority: Blocker
> Fix For: 2.0.0
>
> Attachments:
> 0001-HBASE-20224-Web-UI-is-broken-in-standalone-mode-ADDE.ADDENDUM.patch,
> 20224-addendum.3.txt, 20224.addendum.4, 20224.addendum.5, 20224.addendum.6,
> hbase-20224.master.001.patch, hbase-20224.master.002.patch,
> hbase-20224.master.003.patch, hbase-20224.master.addendum.patch
>
>
> Web UI doesn't show up in standalone mode on default port. This can be seen
> on master and branch-2.
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