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qa: Test ZMQ notification after chain reorg#16404

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maflcko merged 3 commits intobitcoin:masterfrom
promag:2019-07-zmq-reorg
Aug 26, 2019
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qa: Test ZMQ notification after chain reorg#16404
maflcko merged 3 commits intobitcoin:masterfrom
promag:2019-07-zmq-reorg

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@promag promag commented Jul 17, 2019

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@promag promag mentioned this pull request Jul 17, 2019
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@fanquake fanquake added the Tests label Jul 17, 2019
@promag promag force-pushed the 2019-07-zmq-reorg branch 4 times, most recently from 910474b to e11aa5a Compare July 17, 2019 22:34
kallewoof
kallewoof reviewed Aug 5, 2019
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test/functional/interface_zmq.py Outdated
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Is it normal to import stuff in the middle of a file in python? Don't see it often. And you could remove the one below in test_reorg if you just moved this to top..

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This was already the case. It's like this to not break if zmq module is not available. See skip_if_no_py3_zmq() above.

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Ah, that makes sense..

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Can move the import zmq right after the line skip_if_no_bitcoind_zmq? :)

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Really? It's then available to other scopes? I'll try.

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If I remove import zmq and keep the one you said I get NameError: name 'zmq' is not defined.

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laanwj commented Aug 5, 2019

ACK e11aa5a6f2683741567f0aaa08d3b198d219913f

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maflcko reviewed Aug 5, 2019
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@promag promag force-pushed the 2019-07-zmq-reorg branch from e11aa5a to dae02dc Compare August 5, 2019 14:23
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DrahtBot commented Aug 14, 2019 •
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The following sections might be updated with supplementary metadata relevant to reviewers and maintainers.

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@promag promag force-pushed the 2019-07-zmq-reorg branch from dae02dc to abdfc5e Compare August 19, 2019 00:26
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promag commented Aug 19, 2019

Rebased.

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promag commented Aug 25, 2019

IMO this is ready to merge.

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maflcko commented Aug 26, 2019

Indeed. Thanks for the ping

maflcko pushed a commit to maflcko/bitcoin-core that referenced this pull request Aug 26, 2019
Merge bitcoin#16404: qa: Test ZMQ notification after chain reorg
af4100c 
abdfc5e qa: Test ZMQ notification after chain reorg (João Barbosa)
aa2622a qa: Refactor ZMQ test (João Barbosa)
6bc1ff9 doc: Add note regarding ZMQ block notification (João Barbosa)

Pull request description:

Top commit has no ACKs.

Tree-SHA512: b93237adc8c84b3aa72ccc28097090eabcb006cf408083218bebf6fec703bd0de2ded80b6879e77096872e14ba9402a6d3f923b146a54d4c4e41dcb862c3e765
@maflcko maflcko merged commit abdfc5e into bitcoin:master Aug 26, 2019
@promag promag deleted the 2019-07-zmq-reorg branch August 26, 2019 15:31
sidhujag pushed a commit to syscoin/syscoin that referenced this pull request Aug 27, 2019
@sidhujag
Merge bitcoin#16404: qa: Test ZMQ notification after chain reorg
0ff9761 
abdfc5e qa: Test ZMQ notification after chain reorg (João Barbosa)
aa2622a qa: Refactor ZMQ test (João Barbosa)
6bc1ff9 doc: Add note regarding ZMQ block notification (João Barbosa)

Pull request description:

Top commit has no ACKs.

Tree-SHA512: b93237adc8c84b3aa72ccc28097090eabcb006cf408083218bebf6fec703bd0de2ded80b6879e77096872e14ba9402a6d3f923b146a54d4c4e41dcb862c3e765
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maflcko commented Aug 27, 2019

This test fails on travis

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promag commented Aug 27, 2019

The test should run pretty fast, on my system around 1s:

2019-08-27T20:59:50.749000Z TestFramework (INFO): Test the getzmqnotifications RPC
2019-08-27T20:59:51.603000Z TestFramework (INFO): Stopping nodes

But on one travis failure it takes around 60s to fail:

2019-08-27T17:18:36.885000Z TestFramework (INFO): Test the getzmqnotifications RPC
2019-08-27T17:19:37.373000Z TestFramework (ERROR): Unexpected exception caught during testing

and looking at the error:

zmq.error.Again: Resource temporarily unavailable

I assume the receive timeouts due to:

        socket.set(zmq.RCVTIMEO, 60000)

I suspect it happens because by the time the message is published there is no subscriber connected - this is called a "slow joiner" in http://zguide.zeromq.org/py:all#sockets-and-patterns - and I think this happens because we are restart_node after socket.connect. I'll submit a PR to invert this order to see if it stops happening, otherwise we'll have to make sure the subscriber is ready before publishing messages.

@promag promag mentioned this pull request Aug 27, 2019
Merged
jasonbcox pushed a commit to Bitcoin-ABC/bitcoin-abc that referenced this pull request Sep 3, 2020
@promag @majcosta
[backport#16404] doc: Add note regarding ZMQ block notification
a9f7ee1 
Summary:
bitcoin/bitcoin@6bc1ff9

Partial backport of Core [[bitcoin/bitcoin#16404 | PR16404]]

Test Plan:
  read it

Reviewers: #bitcoin_abc, deadalnix

Reviewed By: #bitcoin_abc, deadalnix

Differential Revision: https://reviews.bitcoinabc.org/D7342
jasonbcox pushed a commit to Bitcoin-ABC/bitcoin-abc that referenced this pull request Sep 3, 2020
@promag @majcosta
[backport#16404] qa: Refactor ZMQ test
ce68479 
Summary:
bitcoin/bitcoin@aa2622a

Partial backport of Core [[bitcoin/bitcoin#16404 | PR16404]] and [[https://github.com/bitcoin/bitcoin/pull/16740| PR16740]] (PR16404 on its own is broken and will not pass the tests otherwise, sorry)

notes:

~~* test looks to be wrong. socket.connect() is running before there is a node with the proper `-zmqxx=xx` CLI parameters set, so I moved it accordingly.~~

Test Plan:
  ninja
  ./test/functional/test_runner.py interface_zmq

Reviewers: #bitcoin_abc, deadalnix

Reviewed By: #bitcoin_abc, deadalnix

Differential Revision: https://reviews.bitcoinabc.org/D7343
jasonbcox pushed a commit to Bitcoin-ABC/bitcoin-abc that referenced this pull request Sep 3, 2020
@promag @majcosta
[backport#16404] qa: Test ZMQ notification after chain reorg
14653a0 
Summary:
bitcoin/bitcoin@abdfc5e

---

Depends on D7343

Concludes backport of Core [[bitcoin/bitcoin#16404 | PR16404]] and [[https://github.com/bitcoin/bitcoin/pull/16740| PR16740]] (PR16404 on its own is broken and will not pass the tests otherwise, sorry)

notes:

~~* ditto as the note for D7343 re: callsite of socket.connect(address)~~

Test Plan:
  ./test/functional/test_runner.py interface_zmq

Reviewers: #bitcoin_abc, deadalnix

Reviewed By: #bitcoin_abc, deadalnix

Subscribers: deadalnix

Differential Revision: https://reviews.bitcoinabc.org/D7344
vijaydasmp pushed a commit to vijaydasmp/dash that referenced this pull request Dec 15, 2021
@vijaydasmp
Merge bitcoin#16404: qa: Test ZMQ notification after chain reorg
cf43f40 
abdfc5e qa: Test ZMQ notification after chain reorg (João Barbosa)
aa2622a qa: Refactor ZMQ test (João Barbosa)
6bc1ff9 doc: Add note regarding ZMQ block notification (João Barbosa)

Pull request description:

Top commit has no ACKs.

Tree-SHA512: b93237adc8c84b3aa72ccc28097090eabcb006cf408083218bebf6fec703bd0de2ded80b6879e77096872e14ba9402a6d3f923b146a54d4c4e41dcb862c3e765
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