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ZMQ: Assertion Failed with JZMQ

My Java server runs pretty well for a while with JZMQ. And suddenly it got Assertion failed: check () (msg.cpp:220)

It cannot be caught in JAVA. And the java process is down itself. It seems like Cpp issue in JNI

May I know if any one know what happens in this exception?

Thanks

Solution

  • I've seen this during my first ZMQ tests. In my case the exception was caused by a thread closing a socket opened by another thread. It also happened when two threads used one socket at the same time.

    I was breaking ZMQ's rule of sharing sockets among threads.

    I suggest to check if a thread is using or closing a socket while it's being in use by another thread.