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support simulating clusters

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Without actually simulating cluster implementation at all. Instead, only
the essential fact that cluster gateways know what changes they have
made to each node of a cluster. That is enough for sims like
sizebalanced_cluster.
This commit is contained in:
Joey Hess 2024-09-25 14:06:41 -04:00
parent 61c95f4d29
commit 8e94b75a61
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doc/sims/sizebalanced_cluster.mdwn Normal file
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# Size balanced preferred content sim with multiple repositories sending
# concurrently to the same repositories, in a cluster.
#
# This demonstrates that size balanced preferred content does not get out
# of balance when used with cluster nodes.
init foo
init bar
init node1
init node2
clusternode cluster-node1 node1
clusternode cluster-node2 node2
group node1 cluster
group node2 cluster
wanted node1 sizebalanced=cluster
wanted node2 sizebalanced=cluster
maxsize node1 100gb
maxsize node2 100gb
connect cluster-node2 <- foo -> cluster-node1
connect cluster-node2 <- bar -> cluster-node1
addmulti 10 foo 1gb 2gb foo
addmulti 10 bar 1gb 2gb bar
action foo sendwanted cluster-node1 while action foo sendwanted cluster-node2 while action bar sendwanted cluster-node1 while action bar sendwanted cluster-node2
visit foo git-annex maxsize