[zeromq-dev] Zeromq messages getting dropped

[Yu Dongmin]

Hi,

My guess was it might have an issue on libzmq (zeromq c library) when large messages were heavily sent.

Thanks
Min

On Jan 26, 2013, at 4:01 PM, Ritesh Adval <riteshadval at gaikai.com> wrote:

> Hi Min,
> 
> Thanks for the update.Just to confirm, 
> Are you saying that this issue is on zeromq c library or jzmq c wrapper?
> 
> Just an update that when I replaced 
> DEALER socket which connects to ROUTER socket of broker with REQ socket and replaced DEALER socket which connects to DEALER socket of broker with REP socket, then I do not see message loss when doing the same test. (REQ socket does "send" and then "recv" and REP does opposite  "recv" and "send")
> 
> -Ritesh
> Sent from my iPhone.
> 
> 
> On Jan 25, 2013, at 8:42 PM, Min <miniway at gmail.com> wrote:
> 
>> I was able to reproduce the issue on jzmq even on zeromq 3.2.2.
>> 
>> What I discovered is about last 30K bytes of 45K message was not sometimes delivered to in-router on raw close. 
>> I didn't build equivalent C code, as jzmq is a thin wrapper of native C library it could have the same problem.
>> 
>> But I didn't find a clear solution yet.
>> 
>> Thanks
>> Min
>> 
>> 
>> On Thu, Jan 24, 2013 at 6:39 AM, Ritesh Adval <riteshadval at gaikai.com> wrote:
>> Hello,
>> 
>> I have created a bug for this issue with instructions and java test case. Its at https://zeromq.jira.com/browse/LIBZMQ-497
>> 
>> Thanks
>> Ritesh
>> 
>> 
>> 
>> 
>> On Tue, Jan 22, 2013 at 6:30 PM, Ritesh Adval <riteshadval at gaikai.com> wrote:
>> Thanks Min,
>> 
>> I will create a bug with instruction and unit test. I was also experimenting with Java only version of zeromq (https://github.com/zeromq/jeromq). When running same test it does not drop message but has some other issue.
>> 
>> -Ritesh
>> 
>> 
>> 
>> On Mon, Jan 21, 2013 at 11:53 PM, Min <miniway at gmail.com> wrote:
>> Ritesh,
>> 
>> If you can reproduce the problem, Java code should be fine.
>> 
>> Community could look into it.
>> 
>> Thanks
>> Min
>> 
>> 2013년 1월 17일 목요일에 Ritesh Adval님이 작성:
>> 
>> Hi Charles,
>> 
>> I have test program in JAVA, I am not a C programmer so i will probably take me time to reproduce this in C. Can someone first take a look at my JAVA program to see if I am not doing anything stupid.  Should I create bug and attach Java maven project?
>> Its very easy to run it, all you need is zeromq 2.2.0 installed and jzmq built and installed by building jzmq (https://github.com/zeromq/jzmq).
>> I can add instructions to the bug report. Once confirmed that program  looks right I can try to create a C version of the test but will take me some time.
>> 
>> let me know.
>> 
>> Thanks
>> Ritesh
>> 
>> 
>> 
>> 
>> On Wed, Jan 16, 2013 at 10:55 PM, Charles Remes <lists at chuckremes.com> wrote:
>> On Jan 16, 2013, at 4:08 PM, Ritesh Adval <riteshadval at gaikai.com> wrote:
>> 
>> > Hi Charles,
>> >
>> > Yes I close the socket in my thread after sending 100 messages, and I expect that LINGER will make sure messages are sent to the other end, I expected that context termination will block and make sure any pending messages are sent, but thats not happening. context termination returns quickly.
>> >
>> > Just now tried again in my unit test by setting LINGER to Integer.MAX_VALUE explicitly in all my sockets and ran the test again and it did fail with messages getting dropped.
>> >
>> > The interesting thing is only the 100th message  (The last one) from some of my concurrent threads are getting dropped.
>> 
>> Time to show someone the code. That's the easiest way to figure it out. If you can reproduce this in C, that will get a lot more attention.
>> 
>> Here's how to open an issue:
>> 
>> http://www.zeromq.org/docs:issue-tracking
>> 
>> cr
>> 
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