mnmhouse opened a new pull request #4115:
URL: https://github.com/apache/zeppelin/pull/4115
ZEPPELIN-5349.: fix InterpreterSettingManager init error then init again
### What is this PR for?
This problem is because
The loadFromFile() method of the InterpreterSettingManager class during
initialization
(This method is mainly to load all interpreters and dependency
processing) It is found that newly added interpreter is configured with
dependent jar packages
The InterpreterSetting class will start the thread to do interpreter
dependency processing, and then trigger the
interpreterSettingManager.saveToFile() operation. Save the interpreter.json
file. This operation is time-consuming. At the same time, the main thread then
executes saveToFile(); at this time there is a thread synchronization problem
There is a high probability that the main thread exception and after
this happened
Notebook notebook = ServiceLocatorUtilities.getService(
sharedServiceLocator, Notebook.class.getName()); will be
executed again, causing InterpreterSettingManager int
,Thrift Server in interpreterSettingManager to start twice
### What type of PR is it?
[Bug Fix}
### Todos
* [ ] - Task
### What is the Jira issue?
https://issues.apache.org/jira/browse/ZEPPELIN-5349
### How should this be tested?
add a new Interpreter
### Screenshots (if appropriate)
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