[zeromq-dev] epgm memory leak - need hepl

[Charles Remes]

Also, make sure that the message you send is "closed" after you send it. I don't know if this binding automatically handles that for you when you send a message but it is worth investigating. See the zmq_msg_close() man page for more information.

cr

On Jun 17, 2013, at 1:48 PM, Parag Patel <Parag.Patel at fusionts.com> wrote:

> Any ideas about this?  We’re seeing something similar with a Java application.  We noticed that the JVM memory size is not growing, however, the process’s memory space is growing.
> 
>  
> 
> From: zeromq-dev-bounces at lists.zeromq.org [mailto:zeromq-dev-bounces at lists.zeromq.org] On Behalf Of Alexander Zhitlenok
> Sent: Friday, June 14, 2013 6:07 PM
> To: zeromq-dev at lists.zeromq.org
> Subject: [zeromq-dev] epgm memory leak - need hepl
>  
> 
> Hello,
> 
> My name is Alex Zhitlenok.
> 
> We are using ZeroMq in a custom C# Application on Windows.
> 
> We use the multicast/epgm protocol.
> 
> When we run our application the memory consistently grows and sometimes the app crashes due to an Out of Memory Exception.
> 
> To try and detect what causes the problem, we’ve created a very simple test (just a few lines to avoid GC influence, etc.)
> 
> Even when we run this simple test program, the memory continues to grow (at a slow and linear rate, but continues to grow regardless)
> 
> To avoid “no listeners” problem in the test we run mdump.exe as a fake-client listening to the multicast port.
> 
> What are we doing wrong?
> 
> We use
> ZeroMQ 3.2.3
> OpenPGM 5.2.122 (http://code.google.com/p/openpgm/)
> Clrzmq build for 3.2.3 (https://github.com/zeromq/clrzmq)
> Mdump (https://community.informatica.com/solutions/informatica_mtools)
>  
> Software\Hardware:
> Win7 Professional\64 bit
> 10g network
>  
> Here is the test code (the real addresses are substituted with XYZ):
>  
>         static void Main(string[] args)
>         {
>             ZmqContext context = ZmqContext.Create();
>             ZmqSocket soc = context.CreateSocket(ZeroMQ.SocketType.PUB);
>  
>             soc.MulticastHops = 16;
>             soc.MulticastRate = 100000;
>             //soc.SendBufferSize = 1000000;
>             soc.SendHighWatermark = 100;
>  
>             soc.Bind("epgm://192.168.XYZ.XYZ;239.10.10.10:PORT");
>  
>             byte[] test = new byte[1000];
>             test[1] = (byte)('X');
>  
>             for (int i = 0; ; ++i)
>             {
>                 test[0] = (byte) ('0' + (i%10));
>                 SendStatus ss = soc.Send(test);
>                 if( ss != SendStatus.Sent )
>                     System.Diagnostics.Debug.WriteLine(String.Format("Status:{0}", ss));
>                 Thread.Sleep(100);
>             }
>         }
>  
> Thank you,
> Alex
>  
> 
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