How can we receive hashtx and hashblock from bitcoind by zmq subscribe?

1

  1. install bitcoind by sudo apt install bitcoind in Ubuntu 16.04 server amd64(https://bitcoin.org/en/full-node#ubuntu-1410)
  2. bitcoind --version show v0.13 ga402396
  3. bitcoind -daemon -zmqpubhashblock=tcp://127.0.0.1:28332 -zmqpubhashtx=tcp://127.0.0.1:28332 after download, blocks file is 89G. and the bitcoin.conf only have rpcuser=xxxyyy and rpcpassword=xxx123 should add server=1 to bitcoin.conf?
  4. git clone https://github.com/bitcoin/bitcoin
  5. cd bitcoin/contrib/zmq and pip install zmq, then do python zmq_sub.py and we can't receive anything in long wait. How can we receive hashtx and hashblock from bitcoind? Should i install libzmq3-dev? Is libzmq3-dev only for compile bitcoind and don't need in runtime?

SteveLin

Posted 2016-09-19T14:29:19.267

Reputation: 11

Answers

4

The PPA you have installed (https://launchpad.net/~bitcoin/+archive/ubuntu/bitcoin/+packages) is not compiled with ZMQ support (It should in future).

You need to self-compile bitcoin v0.13.0 or use one of the "official" binaries: https://bitcoin.org/bin/bitcoin-core-0.13.0/

EDIT: since 0.14, ZMQ support is available via the PPA

Jonas Schnelli

Posted 2016-09-19T14:29:19.267

Reputation: 5 465

Note that, latest packages from ppa:bitcoin/bitcoin contain ZMQ support – Oleksandr Fediashov – 2017-04-03T07:40:09.590

Asked: 2016-09-19T14:29:19.267

Viewed: 1 199 times

Active: 2017-04-04T15:33:00.980