Java I/O exception

[Ahmed Nader <ah...@gmail.com>]

Hi,
I'm working on a project using flink with Spring boot, when i run the
application i get an exception:
Cannot determine the size of the physical memory for Windows host (using
'wmic memorychip'): Cannot run program "wmic": CreateProcess error=2, The
system cannot find the file specified

java.io.IOException: Cannot run program "wmic": CreateProcess error=2, The
system cannot find the file specified.

However despite this exception the application runs normally and outputs
the desired result, so what does this exception mean and how can i solve it?
Thanks

Re: Java I/O exception

[Chesnay Schepler <ch...@apache.org>]

I quickly went through the code: Flink gathers some data about the 
hardware available, like numberOfCPUCores / available physical memory.

Now the physical memory part is apparently only used for logging / 
metrics display in the dashboard, so its not a problem that you got it,
it is simply not relevant for the computation. For clarification, this 
exception was not propagated through Flink, but immediately catched and 
logged.

The program that flink uses is not installed on your machine. As such 
the (supposedly) simple fix is to install it, but I can't help you there.//

On 18.03.2016 13:33, Ahmed Nader wrote:
> Hi,
> I'm working on a project using flink with Spring boot, when i run the 
> application i get an exception:
> Cannot determine the size of the physical memory for Windows host 
> (using 'wmic memorychip'): Cannot run program "wmic": CreateProcess 
> error=2, The system cannot find the file specified
>
> java.io.IOException: Cannot run program "wmic": CreateProcess error=2, 
> The system cannot find the file specified.
>
> However despite this exception the application runs normally and 
> outputs the desired result, so what does this exception mean and how 
> can i solve it?
> Thanks