Xun Liu created ZEPPELIN-4285:
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Summary: Optimized cluster metadata calculation interpreter
offline status
Key: ZEPPELIN-4285
URL: https://issues.apache.org/jira/browse/ZEPPELIN-4285
Project: Zeppelin
Issue Type: Sub-task
Reporter: Xun Liu
Assignee: Xun Liu
The state of each interpreter is stored in the cluster metadata, including the
interpreter's thrift interface IP and port. When the interpreter does not send
a heartbeat to the cluster for a certain period of time, the cluster sets the
interpreter to offline (Because it may be temporary network failure, be careful
not to delete the metadata of the interpreter directly, because the interpreter
will send the interpreter's thrift IP and port information when connecting to
the cluster for the first time, and will only send heartbeat information later.)
When the cluster discovery interpreter has not sent heartbeat information for a
long time, the interpreter is removed from the cluster metadata to avoid
storing many useless interpreters in the cluster metadata.
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