A huge warn log happened to the `master.log`.
I think thread pool must be full and reject new coming task.
My `alluxio-site.properties` is:
So I write a test program to simulate the problem. I let both the Alluxio master and the test program running on the same computer.
The test description is in the github readme.md
The handle function of the file open and close between hdfs and Alluxio are different, hdfs namenode can
close a unused connection automatically, but alluxio master hold the connection until the client
process terminate. So if there are a lot of client connect to alluxio master and keep alive,
alluxio's thread pool will full although every client call close in the right way.
CentOS Linux release 7.2.1511 64bit
a hdfs client and a alluxio master node.