Michael Semb Wever created CASSANDRA-15616:
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Summary: Expose Cassandra related system properties in a virtual
table
Key: CASSANDRA-15616
URL: https://issues.apache.org/jira/browse/CASSANDRA-15616
Project: Cassandra
Issue Type: Improvement
Components: Feature/Virtual Tables
Reporter: Michael Semb Wever
Allow viewing Cassandra related system properties.
Viewing yaml config settings, as implemented by {{SettingsTable}} in
CASSANDRA-14573, is not enough for certain third-party tool use-cases. There
are a number of system properties that can be define that also contribute to
the configuration set that Cassandra runs on.
An example of such a use-case is described in CASSANDRA-15339. JMX ports need
to be discovered, especially in 4.0 where multiple nodes can run on one
ipaddress. Unlike the native port that is through gossip discoverable, the jmx
port is not. The jmx port is also not available via the SettingsTable. With
this patch and {{SystemPropertiesTable}} it becomes possible to first discover
all the native ports in the cluster and against each then discover each node's
jmx port.
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