Github user Leemoonsoo commented on the issue:
https://github.com/apache/zeppelin/pull/2140
@jongyoul Great work.
I tested this PR and found some problem. We need some followup here.
#### 1. Can not use interpreter after restart in `Per User scoped mode`,
After restart interpreter, user the same interpreter again, then get error
```
ERROR [2017-03-16 08:07:55,589] ({pool-2-thread-14} Job.java[run]:186) -
Job failed
org.apache.zeppelin.interpreter.InterpreterException:
org.apache.thrift.TApplicationException: Internal error processing interpret
at
org.apache.zeppelin.interpreter.remote.RemoteInterpreter.interpret(RemoteInterpreter.java:361)
at
org.apache.zeppelin.interpreter.LazyOpenInterpreter.interpret(LazyOpenInterpreter.java:92)
at org.apache.zeppelin.notebook.Paragraph.jobRun(Paragraph.java:407)
at org.apache.zeppelin.scheduler.Job.run(Job.java:181)
at
org.apache.zeppelin.scheduler.RemoteScheduler$JobRunner.run(RemoteScheduler.java:329)
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:178)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:292)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.thrift.TApplicationException: Internal error
processing interpret
at
org.apache.thrift.TApplicationException.read(TApplicationException.java:111)
at org.apache.thrift.TServiceClient.receiveBase(TServiceClient.java:71)
at
org.apache.zeppelin.interpreter.thrift.RemoteInterpreterService$Client.recv_interpret(RemoteInterpreterService.java:274)
at
org.apache.zeppelin.interpreter.thrift.RemoteInterpreterService$Client.interpret(RemoteInterpreterService.java:258)
at
org.apache.zeppelin.interpreter.remote.RemoteInterpreter.interpret(RemoteInterpreter.java:333)
... 11 more
```
#### 2. Interpreter is closed, but process is not terminated in `Per User
scoped mode`,
Login with two different user in two browser.
Let's say each user uses the same interpreter, python.
Then there're one `RemoteInterpreterServer` process and two `python`
process created.
Once both user restart interpreter, two `python` process are terminated.
However `RemoteInterpreterServer` process still remains even though
reference count becomes 0.
#### 3. Per Note scoped mode
Restart button does not restart interpreter.
#### 4. Per User Isolated mode
Restart button in Interpreter binding page does not work
Restart button in interpreter setting page result the same problem 1) 2)
#### 5. Per Note Isolated mode
Restart button in interpreter binding page works as expected
But restart button in interpreter setting page does not restart
interpreter. which expected restart all interpreters.
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