GitHub user AlexanderShoshin opened a pull request:
https://github.com/apache/zeppelin/pull/1954
[ZEPPELIN-525] Test failing in zeppelin-interpreter
`RemoteSchedulerTest.test` was fall when CPU switched `RemoteScheduler`
execution (which executes a job in a separate thread) back to test main thread
execution after changing job status to `Status.FINISHED` but before updating
running jobs list:
```
job.setStatus(lastStatus);
// if thread execution is switched here to the main thread test will fall
synchronized (queue) {
running.remove(job);
queue.notify();
}
```
Test checked job status, saw that job was terminated and expected to see an
empty jobs runing list.
```
while (!job.isTerminated() && cycles < MAX_WAIT_CYCLES) {
Thread.sleep(TICK_WAIT);
cycles++;
}
// this assert will fail because a job was not removed from running list yet
assertEquals(0, scheduler.getJobsRunning().size());
```
But `scheduler.running` list still contained the last job and the assertion
failed.
### What is this PR for?
The goal is to synchronize updating of a job status and a scheduler running
jobs list when a job is terminated.
### What type of PR is it?
Bug Fix
### What is the Jira issue?
[ZEPPELIN-525](https://issues.apache.org/jira/browse/ZEPPELIN-525)
### How should this be tested?
You may place a `Thread.sleep(1000);` code to the `RemoteScheduler.java`
class after the `job.setStatus(lastStatus);` (line number 354). This will
increase probability of threads switching after this line. Test should not fail.
### Questions:
* Does the licenses files need update? **no**
* Is there breaking changes for older versions? **no**
* Does this needs documentation? **no**
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/AlexanderShoshin/zeppelin ZEPPELIN-525
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/zeppelin/pull/1954.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #1954
----
commit 8a0f4afbdf2286748cff4cc415401670de904700
Author: Alexander Shoshin <alexander_shos...@epam.com>
Date: 2017-01-27T08:30:11Z
synchronized a job status and a list of running jobs
synchronized changing of a job status and updating a list of running jobs
after job termination
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