wrong zmq argument causes core dump or infinite loop #7496

1. 
   jafaber commented at 9:32 am on February 10, 2016: none

   bitcoin-0.12.0/bin/bitcoin-qt -testnet -server -zmqpubhashblock=127.0.0.1

   It’s very unclear what the format of “address” should be, so I just tried a bunch. This is 0.12rc3.

   The above causes an infinite loop at startup. “Verifying wallet” and when quitting the scary window “Do not shut down the computer until this window disappears.” Luckily nothing is corrupted by just killing it and trying again.

   Missing .// in the address causes assertion + core dump. At least less scary/confusing than above.

   0bitcoin-0.12.0/bin/bitcoin-qt -testnet -server -debug=1 -zmqpubhashblock=tcp://127.0.0.1:28332 -zmqpuawtx=tcp://127.0.0.1:28332 -zmqpubhashtx=tcp://127.0.0.1:28332 -zmqpubrawblock=tcp:127.0.0.1:28332
   1bitcoin-qt: zmq/zmqpublishnotifier.cpp:92: virtual void CZMQAbstractPublishNotifier::Shutdown(): Assertion `psocket' failed.
   2Aborted (core dumped)
   

2. laanwj added the label RPC on Feb 10, 2016
3. 
   dcousens commented at 2:29 am on February 11, 2016: contributor

   -zmqpuawtx

4. 
   jafaber commented at 8:03 am on February 11, 2016: none

   Hmm.. Or that. Not sure which is the cause. Not able to test today unfortunately.
5. 
   unsystemizer commented at 8:07 am on February 27, 2016: contributor

   It’s very unclear what the format of “address” should be, so I just tried a bunch.

   It’s documented here. https://github.com/bitcoin/bitcoin/blob/0.12/doc/zmq.md

6. 
   mrbandrews commented at 6:13 pm on February 29, 2016: contributor

   In PublishNotifier, if it fails to bind the address, it leaves the socket open which causes zmq_destroy() to hang later on. I’ll submit a fix.
7. laanwj closed this on Mar 15, 2016

   ---

8. DrahtBot locked this on Sep 8, 2021

Contributors
jafaber dcousens unsystemizer mrbandrews

Labels
RPC/REST/ZMQ