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Russ Hatch commented on CASSANDRA-9215:
---------------------------------------
There are some container networking projects that offer interesting
possibilities here, particularly the test tool
[Blockade|https://blockade.readthedocs.org/en/latest/]. Hasn't been tried is
practice afaik.
There is also [Weave|https://zettio.github.io/weave/features.html], which
basically adds an additional container that acts like an ethernet switch. From
there it's possible to use stuff like 'tc' to slow packets and the like. Weave
also supports containers spanning multiple hosts.
I have experimented with Weave and there's some notes captured
[here|https://github.com/knifewine/cstar_test_docker#bonus-points-mucking-with-the-container-network].
>From what I understand, there aren't any plans to add container support to CCM
>so container tech might not be useful for test infra.
> Test with degraded or unreliable networks
> -----------------------------------------
>
> Key: CASSANDRA-9215
> URL: https://issues.apache.org/jira/browse/CASSANDRA-9215
> Project: Cassandra
> Issue Type: Test
> Reporter: Ariel Weisberg
>
> I have tried to test WAN replication using routing nodes with various
> configurations to simulate a bad network and not had good results with
> realistically reproducing a WAN performance. The fake WAN performed better
> than the real one.
> I think we need to do at least some of our testing over a link between data
> centers that are at least as distance as US East <-> US West.
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