[jira] [Created] (FLINK-6642) EnvInformation#getOpenFileHandlesLimit should return -1 for Windows

[Shang Yuanchun (Jira)]

Chesnay Schepler created FLINK-6642:
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             Summary: EnvInformation#getOpenFileHandlesLimit should return -1 for Windows
                 Key: FLINK-6642
                 URL: https://issues.apache.org/jira/browse/FLINK-6642
             Project: Flink
          Issue Type: Bug
          Components: Local Runtime
    Affects Versions: 1.4.0
            Reporter: Chesnay Schepler
            Assignee: Chesnay Schepler


The {{EnvironmentInformation#getOpenFileHandlesLimit}} is accessing t he sun {{UnixOperatingSystemMXBean}} via reflection, but has no branch for Windows.

This causes the following exception to be logged whenever a TM is started:

{code}
2017-05-19 16:49:58,780 WARN  org.apache.flink.runtime.util.EnvironmentInformation          - Unexpected error when accessing file handle limit
java.lang.IllegalArgumentException: object is not an instance of declaring class
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at org.apache.flink.runtime.util.EnvironmentInformation.getOpenFileHandlesLimit(EnvironmentInformation.java:245)
        at org.apache.flink.runtime.taskmanager.TaskManager$.main(TaskManager.scala:1528)
        at org.apache.flink.runtime.taskmanager.TaskManager.main(TaskManager.scala)
2017-05-19 16:49:58,780 INFO  org.apache.flink.runtime.taskmanager.TaskManager              - Cannot determine the maximum number of open file descriptors

{code}



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