Sergey Chugunov created IGNITE-8759:
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Summary: TcpDiscoverySpi: detailed info about current state in
MBean
Key: IGNITE-8759
URL: https://issues.apache.org/jira/browse/IGNITE-8759
Project: Ignite
Issue Type: Improvement
Components: general
Reporter: Sergey Chugunov
When TcpDiscoverySpi is used all nodes keep information about current topology
locally. Discovery protocol is responsible of keeping this information
consistent across all nodes.
However in situations of network glitches some nodes may have different
pictures of current state and topology of the cluster.
To make it easier to monitor state of the whole cluster and identify such nodes
quicker the following information should be presented via MBean interface on
each node:
* Current topology version;
* Hash of current topology (e.g. sum of hash codes of all nodeIds) (to allow
quick matching);
* Pretty-formatted snapshot of current topology visible from the node;
* Information about nodes visible/invisible to local one;
* Other information useful to monitoring of topology state.
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