[GitHub] [incubator-ratis] runzhiwang opened a new pull request #56: RATIS-821. Fix high processor load for ScheduledThreadPoolExecutor with 0 core threads

[GitBox]

runzhiwang opened a new pull request #56: RATIS-821. Fix high processor load 
for ScheduledThreadPoolExecutor with 0 core threads
URL: https://github.com/apache/incubator-ratis/pull/56
 
 
   1. This bug is related to the bug of JDK8: 
https://bugs.openjdk.java.net/browse/JDK-8129861. When create a thread pool 
with size 0,  it will causing 100% CPU load forever when schedule a shutdown 
task.
   2. This bug was triggered in hadoop-ozone, the related PR is: 
https://github.com/apache/hadoop-ozone/pull/611. The triggered stack is as the 
image shows.
   
![image](https://user-images.githubusercontent.com/51938049/75652448-06f83100-5c96-11ea-9ca2-488826ba352c.png)
   

----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
 
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org


With regards,
Apache Git Services