Hi!
You have it at the first paragraph in the documentation
"If Ignite persistence is enabled, Ignite enforces the /baseline
topology/ concept which represents a set of server nodes in the cluster
that will persist data on disk."
The baseline topology is needed for persistence, if your nodes does not
store data they do not need to be part of the topology, they can still
do everything else.
Mikael
Den 2018-11-26 kl. 10:20, skrev Justin Ji:
I added 3 nodes to existing cluster, but not add them to topology, like
below:
Cluster state: active
Current topology version: 93
Baseline nodes:
ConsistentID=0ded99c1-b19c-4ced-ba3a-06abe233c6c8, STATE=ONLINE
ConsistentID=2c252722-a3c4-4f55-8d26-d216329fddbb, STATE=ONLINE
ConsistentID=4ac614ce-4e4c-4bb4-a479-2b47f71138bf, STATE=ONLINE
--------------------------------------------------------------------------------
Number of baseline nodes: 3
Other nodes:
ConsistentID=47ae0f2e-ae8e-468f-93a8-85fbb6ff8000
ConsistentID=751da65f-99f7-488c-91d1-71d0365ffa4d
ConsistentID=8a6b8281-50d8-4d0d-8933-0e51b67994a2
Number of other nodes: 3
We can see that the new nodes were not added to the topology. But what
puzzles me is that these three new nodes are starting to process data
requests, even though I didn't add them to the topology.
So what is the meaning of this topology? And what is the difference between
the nodes in and not in the topology?
--
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