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https://issues.apache.org/jira/browse/CASSANDRA-3881?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13405917#comment-13405917
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Sam Overton commented on CASSANDRA-3881:
----------------------------------------
It's all merged in now, so the patch links in the ticket description are up to
date.
There was one more place in some tests that TMD needed to be cloned:
https://github.com/acunu/cassandra/commit/08620c55a77ba1dc257b853610386297ab0c379b
> reduce computational complexity of processing topology changes
> --------------------------------------------------------------
>
> Key: CASSANDRA-3881
> URL: https://issues.apache.org/jira/browse/CASSANDRA-3881
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Reporter: Peter Schuller
> Assignee: Sam Overton
> Labels: vnodes
>
> This constitutes follow-up work from CASSANDRA-3831 where a partial
> improvement was committed, but the fundamental issue was not fixed. The
> maximum "practical" cluster size was significantly improved, but further work
> is expected to be necessary as cluster sizes grow.
> _Edit0: Appended patch information._
> h3. Patches
> ||Compare||Raw diff||Description||
> |[00_snitch_topology|https://github.com/acunu/cassandra/compare/refs/top-bases/p/3881/00_snitch_topology...p/3881/00_snitch_topology]|[00_snitch_topology.patch|https://github.com/acunu/cassandra/compare/refs/top-bases/p/3881/00_snitch_topology...p/3881/00_snitch_topology.diff]|Adds
> some functionality to TokenMetadata to track which endpoints and racks exist
> in a DC.|
> |[01_calc_natural_endpoints|https://github.com/acunu/cassandra/compare/refs/top-bases/p/3881/01_calc_natural_endpoints...p/3881/01_calc_natural_endpoints]|[01_calc_natural_endpoints.patch|https://github.com/acunu/cassandra/compare/refs/top-bases/p/3881/01_calc_natural_endpoints...p/3881/01_calc_natural_endpoints.diff]|Rewritten
> O(logN) implementation of calculateNaturalEndpoints using the topology
> information from the tokenMetadata.|
> ----
> _Note: These are branches managed with TopGit. If you are applying the patch
> output manually, you will either need to filter the TopGit metadata files
> (i.e. {{wget -O - <url> | filterdiff -x*.topdeps -x*.topmsg | patch -p1}}),
> or remove them afterward ({{rm .topmsg .topdeps}})._
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