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https://issues.apache.org/jira/browse/HBASE-11165?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14120086#comment-14120086
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stack commented on HBASE-11165:
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bq. I mean, seems tricky to make it be the same code path?
Yeah. One of the code paths will 'suffer' neglect.
[~mantonov] I like your "cold backup -> warm -> hot -> active-active".... let
me try and put together a bit of a summary so far on findings and arguments.
bq. ...and reduce usage of memory
Yeah, we'll have to go this route if we are trying to keep state of a big
cluster in heap. Could work on making the representation more compact. You
arguing for single meta region [~octo47] then? There is also the on-hdfs size
to consider (write-amplification) and the r/w i/os.
> Scaling so cluster can host 1M regions and beyond (50M regions?)
> ----------------------------------------------------------------
>
> Key: HBASE-11165
> URL: https://issues.apache.org/jira/browse/HBASE-11165
> Project: HBase
> Issue Type: Brainstorming
> Reporter: stack
> Attachments: HBASE-11165.zip, Region Scalability test.pdf,
> zk_less_assignment_comparison_2.pdf
>
>
> This discussion issue comes out of "Co-locate Meta And Master HBASE-10569"
> and comments on the doc posted there.
> A user -- our Francis Liu -- needs to be able to scale a cluster to do 1M
> regions maybe even 50M later. This issue is about discussing how we will do
> that (or if not 50M on a cluster, how otherwise we can attain same end).
> More detail to follow.
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