All,
Getting an SEHException 0x80004005 from ZeroMQ (4.1.0.21) / libzmq (4.1.5.0)
Multiple processes went down with the same exception at the same time.
Was not able to get a dump but the application logs showed the following stack
trace:
System.Exception System.Runtime.InteropServices.SEHException (0x80004005):
External component has thrown an exception.
at ZeroMQ.lib.zmq.zmq_msg_send(IntPtr msg, IntPtr socket, Int32 flags)
at ZeroMQ.ZSocket.SendFrame(ZFrame frame, ZSocketFlags flags, ZError& error)
at ZeroMQ.ZSocket.SendFrames(IEnumerable`1 frames, Int32& sent, ZSocketFlags
flags, ZError& error)
at ZeroMQ.ZSocket.SendFrames(IEnumerable`1 frames, ZSocketFlags flags, ZError&
error)
at ZeroMQ.ZSocket.SendMessage(ZMessage msg, ZSocketFlags flags, ZError& error)
at ZeroMQ.ZSocket.SendMessage(ZMessage msg, ZSocketFlags flags)
at ZeroMQ.ZSocket.SendMessage(ZMessage msg)
at xxxxxx.SocketsThread(Object eventWaitHandle)
No line numbers available, but based on the logged message, it would have
occurred in the following code. Because the stack trace does not include any
of the calls within the try block (PollIn, ProcessRequest,
ProcessSubscription), I am at a loss as to what exactly was executing at the
time of the exception that was calling SendMessage.
Does anyone have any ideas as to what I might be doing wrong, or what the
problem might be and how to avoid it?
ZSocket[] sockets = new ZSocket[] { _requestSocket,
_subscriberSocket };
ZPollItem[] pollItems = new ZPollItem[] {
ZPollItem.CreateReceiver(), ZPollItem.CreateReceiver() };
ZMessage[] messages = null;
try
{
TimeSpan timeout = TimeSpan.FromMilliseconds(100);
while (_run)
{
if (ZPollItems.PollIn(sockets, pollItems, out messages,
out error, timeout))
{
if (error == ZError.EAGAIN)
continue;
if (error == ZError.ETERM)
break;
if (messages == null)
continue;
if (messages[0] != null) // Request
ProcessRequest(messages[0]);
if (messages[1] != null) // Subscription
ProcessSubscription(messages[1]);
}
else
{
if (error == ZError.EAGAIN)
continue;
if (error != ZError.None)
break;
}
}
}
catch (Exception ex)
{
if (!(ex is ThreadAbortException))
{
_logger.FatalException(string.Format("Exception
encountered while polling for messages on sockets. Thread '{0}' shutting
down.", threadName), ex);
Environment.Exit(-1);
}
}
Thank you in advance,
Aaron Friesen
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