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addObserver eventually stops observing #751

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dmh1974 opened this issue May 19, 2022 · 41 comments
Closed

addObserver eventually stops observing #751

dmh1974 opened this issue May 19, 2022 · 41 comments
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bug Something isn't working

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@dmh1974
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dmh1974 commented May 19, 2022

so far i have only seen this happen with js-waku used in a browser (have not tested node)

..and i am currently using the testnet (since prod has been fritzy)

i can reproduce the results here.. usually stops around the 10min mark...

https://gateway.pinata.cloud/ipfs/QmUS84DM9wLhmXnVf1EB41uoGc4HobTPc9W2CMAUWQRMFs?topic=BTCUSDT

@dmh1974
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dmh1974 commented May 19, 2022

fyi, backgrounding tabs exacerbates the issue as forgrounding does not appear to gracefully recover the connection

@dmh1974
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dmh1974 commented May 20, 2022

fyi, this may be related to PING/PONG frames on the ws connection.

PING alone is not enough the other end must reply with a PONG frame as well.

also note that PING/PONG frames are not required to keep a ws alive unless one end is depending on it.. the other must recognize a ping frame and respond with a pong frame.

https://stackoverflow.com/questions/46111656/must-websockets-have-heartbeats

@dmh1974
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dmh1974 commented May 21, 2022

fyi, addObserver is stable when used with node

@D4nte
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D4nte commented May 23, 2022

Thx, will investigate.

@dao
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dao commented May 23, 2022

I suspect that this is the same issue we're having in https://railway.xyz - at some point, clients stop receiving fees from relayers and have to refresh the page to get it going again. @D4nte if you have a workaround we can implement on the frontend in the meantime - eg a timer to check if observers are observing and force reinitialize them if not - I'd love to hear it.

@dmh1974
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dmh1974 commented May 23, 2022

@dao i have been pondering a workaround myself... one way would be to use the queryHistory function on a timer that keeps track of startdate as a pointer. the nodes also apparently support rpc calls and there are some docs on that, but i havent done a deep dive on it yet.

@D4nte D4nte added rqt:platforms bug Something isn't working labels May 26, 2022
@dmh1974
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dmh1974 commented May 29, 2022

fyi, i discovered this also applies to relay.send when used in a browser. after 10m it too stops working

the issue does not appear to manifest when used in node

@D4nte
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D4nte commented May 30, 2022

@dmh1974 were you using port 443 of the fleet (websockify) or 8000 (nim-websocket)?

I know @dao was using native websocket. It seems that we have a bug in nim-websocket that closes connections after 10min. Hopefully this is the issue.

@jm-clius: can you share the issue # please?

@D4nte
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D4nte commented May 30, 2022

Note: I was surprised by this bug because we used to have the issue with websockify and/or nginx and I resolved it using keep alive.

@jm-clius
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Yes, this fix in nim-libp2p addresses the 10 min timeout issue for native websocket connections: vacp2p/nim-libp2p#721 We still need to update the submodule to have an effect in nwaku.

@dmh1974
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dmh1974 commented May 30, 2022

i am only specifying a connection for bootstrap when invoking create.. i got it from the fleets json (testnet). im not specifying a port anywhere else after that (im assuming the js-waku library handles such)

@dao
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dao commented May 30, 2022

i am only specifying a connection for bootstrap when invoking create.. i got it from the fleets json (testnet). im not specifying a port anywhere else after that (im assuming the js-waku library handles such)

We are doing the very same thing

      logDev(`Creating js-waku client: ${fleet} fleet`);
      const peers = getPredefinedBootstrapNodes(fleet, 2);
      const waku = await Waku.create({
        bootstrap: { peers }
      });

@D4nte
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D4nte commented May 31, 2022

i am only specifying a connection for bootstrap when invoking create.. i got it from the fleets json (testnet). im not specifying a port anywhere else after that (im assuming the js-waku library handles such)

Ok fleets.status.im currently contains the 8000 port so it means it's nim-websocket.
Note that you can work around the issue by replacing 8000 by 443 or simply using the predefined nodes available in js-waku:

https://github.com/status-im/js-waku/blob/6df972694cd9ae948fdaaf4bef16c892b943281d/src/lib/discovery/predefined.ts#L60

Also note that we discourage using fleets.status.im. This is a just a dev tool that can go down at any time.

@D4nte
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D4nte commented May 31, 2022

i am only specifying a connection for bootstrap when invoking create.. i got it from the fleets json (testnet). im not specifying a port anywhere else after that (im assuming the js-waku library handles such)

We are doing the very same thing

      logDev(`Creating js-waku client: ${fleet} fleet`);
      const peers = getPredefinedBootstrapNodes(fleet, 2);
      const waku = await Waku.create({
        bootstrap: { peers }
      });

Ok that's not great because it means you are using websockify (port 443) and getting the timeout. I'll need to investigate.

@dmh1974
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dmh1974 commented Jun 1, 2022

ok gents, happy to report send and receive have been stable in two separate tabs for over 30mins now (also surviving tab backgrounding)

not sure what changed on your end, but keep up the good work! (maybe mem leak reboots?)

current env...

<script src='https://unpkg.com/js-waku@latest/build/umd/js-waku.min.bundle.js'></script>

Waku.create({bootstrap: {peers: ["/dns4/node-01.gc-us-central1-a.wakuv2.test.statusim.net/tcp/8000/wss/p2p/16Uiu2HAmJb2e28qLXxT5kZxVUUoJt72EMzNGXB47Rxx5hw3q4YjS",]},

@jm-clius
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jm-clius commented Jun 1, 2022

@dmh1974 excellent news! It was a fix in an underlying library that caused timeouts in websocket connections. Glad to hear it's working as expected.

@dmh1974
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dmh1974 commented Jun 2, 2022

one important note... the connection does not survive 'sleeping'... if i reopen my laptop after some time, the connection does not re-establish gracefully. the page needs refreshing.

@therealjmj
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therealjmj commented Jun 7, 2022

@jm-clius - Fantastic! Is the fix available in js-waku 0.24?

@dmh1974 - In you testing, is there a variable on Waku that we can watch to know "status" - whether connected or disconnected"? We're considering a status indicator that could show on the frontend.

@jm-clius
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jm-clius commented Jun 7, 2022

@jm-clius - Fantastic! Is the fix available in js-waku 0.24?>

The timeout was on nwaku's side (e.g. on the fleets), has been fixed on the latest master and is already running on the wakuv2.test fleet. It will also be included in the upcoming nwaku release (v0.10), scheduled for middle of next week.

@dmh1974
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dmh1974 commented Jun 8, 2022

@jrmeurer i havent.. hopefully that will be handled gracefully by js-waku in the future.

@dmh1974
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dmh1974 commented Jun 8, 2022

@jm-clius i know its all related, but just for completion sake I'll mention on this ticket that even currently with observers stable, there is still a degree of message loss

@D4nte
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D4nte commented Jul 25, 2022

This might be a fix to this issue: https://github.com/status-im/status-web/pull/288/files

@therealjmj
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This might be a fix to this issue: https://github.com/status-im/status-web/pull/288/files

Good potential. Will this change be added to js-waku?

@D4nte
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D4nte commented Jul 25, 2022

This might be a fix to this issue: https://github.com/status-im/status-web/pull/288/files

Good potential. Will this change be added to js-waku?

I have encouraged it to be pushed directly upstream in the right libp2p dependency which seems to be the right thing to do 🙂

@lucille-bellepleure
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Maybe keep this issue open until the problem is resolved - we have been researching why we haz this err and it's useful to see this issue

@fryorcraken
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Maybe keep this issue open until the problem is resolved - we have been researching why we haz this err and it's useful to see this issue

Hi @michelleplur, yes the process is to keep issues open until the problem is resolved.

Note that the final solution would be to backport the quoted patch to upstream libp2p dependency.

This is next on the list after the refactoring/doc update is done: #802
I haven't done it before the ESM migration because:

  • I was hoping that bumping to latest libp2p libs could have solved the issue (it did not)
  • The proper fix is to patch upstream libp2p lib, no point doing so until we are using the latest libp2p dep, which was blocked on ESM migration as libp2p is ESM only now.

Let me know if you have any question.

@fryorcraken fryorcraken self-assigned this Nov 20, 2022
@fryorcraken
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fryorcraken commented Nov 21, 2022


11:08:38.658 libp2p:websockets dialing /dns4/node-01.ac-cn-hongkong-c.wakuv2.prod.statusim.net/tcp/443/wss/p2p/16Uiu2HAm4v86W3bmT1BiH6oSPzcsSr24iDQpSN5Qa992BCjjwgrD +0ms

...

11:18:27.930 libp2p:dialer token 7 released +9ms common.js:108
11:18:27.931 libp2p:dialer dial failed to 16Uiu2HAm4v86W3bmT1BiH6oSPzcsSr24iDQpSN5Qa992BCjjwgrD +0ms AggregateError: No Promise in Promise.any was resolved
    run dial-request.js:56
    _createPendingDial index.js:208
    dial index.js:98
    openConnection index.js:344
    _autoDial auto-dialler.js:92
    retimer bundle.js:129007
    setTimeout handler*Retimer retimer.js:21
    retimer retimer.js:65
    _autoDial auto-dialler.js:102
    retimer bundle.js:129007
    setTimeout handler*Retimer retimer.js:21
    retimer retimer.js:65
    _autoDial auto-dialler.js:102
    retimer bundle.js:129007
    setTimeout handler*Retimer retimer.js:21
    retimer retimer.js:65
    _autoDial auto-dialler.js:102
    retimer bundle.js:129007
    setTimeout handler*Retimer retimer.js:21
    retimer retimer.js:65
    _autoDial auto-dialler.js:102
    retimer bundle.js:129007
    setTimeout handler*Retimer retimer.js:21
    retimer retimer.js:65
    _autoDial auto-dialler.js:102
    retimer bundle.js:129007
    setTimeout handler*Retimer retimer.js:21
    retimer retimer.js:65
    _autoDial auto-dialler.js:102
    retimer bundle.js:129007
    setTimeout handler*Retimer retimer.js:21
    retimer retimer.js:65
    _autoDial auto-dialler.js:102
common.js:108
11:18:27.931 libp2p:dialer:error Promise.any*run@http://localhost:3004/eth-pm/static/js/bundle.js:164581:28
_createPendingDial@http://localhost:3004/eth-pm/static/js/bundle.js:164874:28
dial@http://localhost:3004/eth-pm/static/js/bundle.js:164764:70
async*openConnection@http://localhost:3004/eth-pm/static/js/bundle.js:165310:55
_autoDial@http://localhost:3004/eth-pm/static/js/bundle.js:164492:51
Async*./node_modules/.pnpm/[email protected]/node_modules/retimer/retimer.js/Retimer/this._timerWrapper@http://localhost:3004/eth-pm/static/js/bundle.js:129007:18
setTimeout handler*Retimer@http://localhost:3004/eth-pm/static/js/bundle.js:129010:19
retimer@http://localhost:3004/eth-pm/static/js/bundle.js:129054:10
_autoDial@http://localhost:3004/eth-pm/static/js/bundle.js:164502:28
Async*./node_modules/.pnpm/[email protected]/node_modules/retimer/retimer.js/Retimer/this._timerWrapper@http://localhost:3004/eth-pm/static/js/bundle.js:129007:18
setTimeout handler*Retimer@http://localhost:3004/eth-pm/static/js/bundle.js:129010:19
retimer@http://localhost:3004/eth-pm/static/js/bundle.js:129054:10
_autoDial@http://localhost:3004/eth-pm/static/js/bundle.js:164502:28
Async*./node_modules/.pnpm/[email protected]/node_modules/retimer/retimer.js/Retimer/this._timerWrapper@http://localhost:3004/eth-pm/static/js/bundle.js:129007:18
setTimeout handler*Retimer@http://localhost:3004/eth-pm/static/js/bundle.js:129010:19
retimer@http://localhost:3004/eth-pm/static/js/bundle.js:129054:10
_autoDial@http://localhost:3004/eth-pm/static/js/bundle.js:164502:28
Async*./node_modules/.pnpm/[email protected]/node_modules/retimer/retimer.js/Retimer/this._timerWrapper@http://localhost:3004/eth-pm/static/js/bundle.js:129007:18
setTimeout handler*Retimer@http://localhost:3004/eth-pm/static/js/bundle.js:129010:19
retimer@http://localhost:3004/eth-pm/static/js/bundle.js:129054:10
_autoDial@http://localhost:3004/eth-pm/static/js/bundle.js:164502:28
Async*./node_modules/.pnpm/[email protected]/node_modules/retimer/retimer.js/Retimer/this._timerWrapper@http://localhost:3004/eth-pm/static/js/bundle.js:129007:18
setTimeout handler*Retimer@http://localhost:3004/eth-pm/static/js/bundle.js:129010:19
retimer@http://localhost:3004/eth-pm/static/js/bundle.js:129054:10
_autoDial@http://localhost:3004/eth-pm/static/js/bundle.js:164502:28
Async*./node_modules/.pnpm/[email protected]/node_modules/retimer/retimer.js/Retimer/this._timerWrapper@http://localhost:3004/eth-pm/static/js/bundle.js:129007:18
setTimeout handler*Retimer@http://localhost:3004/eth-pm/static/js/bundle.js:129010:19
retimer@http://localhost:3004/eth-pm/static/js/bundle.js:129054:10
_autoDial@http://localhost:3004/eth-pm/static/js/bundle.js:164502:28
Async*./node_modules/.pnpm/[email protected]/node_modules/retimer/retimer.js/Retimer/this._timerWrapper@http://localhost:3004/eth-pm/static/js/bundle.js:129007:18
setTimeout handler*Retimer@http://localhost:3004/eth-pm/static/js/bundle.js:129010:19
retimer@http://localhost:3004/eth-pm/static/js/bundle.js:129054:10
_autoDial@http://localhost:3004/eth-pm/static/js/bundle.js:164502:28
 +1ms common.js:108
11:18:27.931 libp2p:connection-manager:auto-dialler:error could not connect to peerStore stored peer +10s AggregateError: No Promise in Promise.any was resolved
    run dial-request.js:56
    _createPendingDial index.js:208
    dial index.js:98
    openConnection index.js:344
    _autoDial auto-dialler.js:92
    retimer bundle.js:129007
    setTimeout handler*Retimer retimer.js:21
    retimer retimer.js:65
    _autoDial auto-dialler.js:102
    retimer bundle.js:129007
    setTimeout handler*Retimer retimer.js:21
    retimer retimer.js:65
    _autoDial auto-dialler.js:102
    retimer bundle.js:129007
    setTimeout handler*Retimer retimer.js:21
    retimer retimer.js:65
    _autoDial auto-dialler.js:102
    retimer bundle.js:129007
    setTimeout handler*Retimer retimer.js:21
    retimer retimer.js:65
    _autoDial auto-dialler.js:102
    retimer bundle.js:129007
    setTimeout handler*Retimer retimer.js:21
    retimer retimer.js:65
    _autoDial auto-dialler.js:102
    retimer bundle.js:129007
    setTimeout handler*Retimer retimer.js:21
    retimer retimer.js:65
    _autoDial auto-dialler.js:102
    retimer bundle.js:129007
    setTimeout handler*Retimer retimer.js:21
    retimer retimer.js:65
    _autoDial auto-dialler.js:102
common.js:108
11:18:37.932 libp2p:peer-store:trace getPeers await read lock +10s common.js:108
11:18:37.932 libp2p:peer-store:trace getPeers got read lock +0ms common.js:108
11:18:37.934 libp2p:peer-store:trace getPeers release read lock +2ms common.js:108
11:18:37.934 libp2p:connection-manager:auto-dialler connecting to a peerStore stored peer 16Uiu2HAm4v86W3bmT1BiH6oSPzcsSr24iDQpSN5Qa992BCjjwgrD +10s common.js:108
11:18:37.934 libp2p:connection-manager dial to 16Uiu2HAm4v86W3bmT1BiH6oSPzcsSr24iDQpSN5Qa992BCjjwgrD +10s common.js:108
11:18:37.934 libp2p:dialer check multiaddrs 16Uiu2HAm4v86W3bmT1BiH6oSPzcsSr24iDQpSN5Qa992BCjjwgrD +10s common.js:108
11:18:37.935 libp2p:dialer creating dial target for 16Uiu2HAm4v86W3bmT1BiH6oSPzcsSr24iDQpSN5Qa992BCjjwgrD +0ms common.js:108
11:18:37.935 libp2p:peer-store:address-book:trace get wait for read lock +10s common.js:108
11:18:37.935 libp2p:peer-store:address-book:trace get got read lock +1ms common.js:108
11:18:37.936 libp2p:peer-store:address-book:trace get release read lock +0ms common.js:108
11:18:37.938 libp2p:dialer 1 tokens request, returning 1, 99 remaining +3ms common.js:108
11:18:37.939 libp2p:websockets dialing /ip4/0.0.0.0/tcp/8000/wss/p2p/16Uiu2HAm4v86W3bmT1BiH6oSPzcsSr24iDQpSN5Qa992BCjjwgrD +10s common.js:108
11:18:37.939 libp2p:websockets dialing 0.0.0.0:8000 +0ms common.js:108
11:18:37.944 Firefox can’t establish a connection to the server at wss://0.0.0.0:8000/p2p/16Uiu2HAm4v86W3bmT1BiH6oSPzcsSr24iDQpSN5Qa992BCjjwgrD. client.js:9
11:18:37.945 libp2p:websockets:error connection error: +10s 

Autodial actually happens when the connection is lost after 10min but the wrong multiaddr is used:

11:20:34.350 libp2p:connection-manager dial to 16Uiu2HAm4v86W3bmT1BiH6oSPzcsSr24iDQpSN5Qa992BCjjwgrD +36s [common.js:108](http://localhost:3004/home/fryorcraken/src/waku-org/js-waku-examples/eth-pm/node_modules/.pnpm/[email protected]/node_modules/debug/src/common.js)
11:20:34.351 libp2p:dialer check multiaddrs 16Uiu2HAm4v86W3bmT1BiH6oSPzcsSr24iDQpSN5Qa992BCjjwgrD +10s [common.js:108](http://localhost:3004/home/fryorcraken/src/waku-org/js-waku-examples/eth-pm/node_modules/.pnpm/[email protected]/node_modules/debug/src/common.js)
11:20:34.351 libp2p:dialer creating dial target for 16Uiu2HAm4v86W3bmT1BiH6oSPzcsSr24iDQpSN5Qa992BCjjwgrD +0ms [common.js:108](http://localhost:3004/home/fryorcraken/src/waku-org/js-waku-examples/eth-pm/node_modules/.pnpm/[email protected]/node_modules/debug/src/common.js)
11:20:34.351 libp2p:peer-store:address-book:trace get wait for read lock +36s [common.js:108](http://localhost:3004/home/fryorcraken/src/waku-org/js-waku-examples/eth-pm/node_modules/.pnpm/[email protected]/node_modules/debug/src/common.js)
11:20:34.352 libp2p:peer-store:address-book:trace get got read lock +1ms [common.js:108](http://localhost:3004/home/fryorcraken/src/waku-org/js-waku-examples/eth-pm/node_modules/.pnpm/[email protected]/node_modules/debug/src/common.js)
11:20:34.352 libp2p:peer-store:address-book:trace get release read lock +0ms [common.js:108](http://localhost:3004/home/fryorcraken/src/waku-org/js-waku-examples/eth-pm/node_modules/.pnpm/[email protected]/node_modules/debug/src/common.js)
11:20:34.356 libp2p:dialer 1 tokens request, returning 1, 99 remaining +5ms [common.js:108](http://localhost:3004/home/fryorcraken/src/waku-org/js-waku-examples/eth-pm/node_modules/.pnpm/[email protected]/node_modules/debug/src/common.js)
11:20:34.356 libp2p:websockets dialing /ip4/0.0.0.0/tcp/8000/wss/p2p/16Uiu2HAm4v86W3bmT1BiH6oSPzcsSr24iDQpSN5Qa992BCjjwgrD +36

Need to investigate why the multiaddr is not being stored in the peer store.

@fryorcraken
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investigating and reported to libp2p too libp2p/js-libp2p#1484

@fryorcraken
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Issue found: libp2p/js-libp2p#1484 (comment) upstream fix is being tested.

@fryorcraken
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Upstream fix proposed: libp2p/js-libp2p#1485

Note that latest js-libp2p automatically attempt to reconnect to the remote node when the connection drops. Which means that the workaround https://github.com/status-im/status-web/pull/288/files is not needed any more.

This is done in the form of the autodialer: https://github.com/libp2p/js-libp2p/blob/a3847f2d1725b1c92d5e0ef7bcdf840ea8428a75/src/connection-manager/auto-dialler.ts which only dials when the number of connections is under a threshold.

Unfortunately, an other issue was corrupting the address book after the identify protocol is executed. Which is the upstream fix.

One work around of the latest issue would be to do addressBook.add after identify is done so that the overridden value can be re-instated.

@fryorcraken
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Actually, issue in nwaku/nim-libp2p, see waku-org/nwaku#1427

@fryorcraken
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To keep in mind: status-im/status-web#320

@fryorcraken
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fryorcraken commented Jan 6, 2023

Playing locally with (eth-pm example)

    "@waku/byte-utils": "0.0.2",
    "@waku/core": "^0.0.8",
    "@waku/create": "^0.0.6",
    "@waku/interfaces": "^0.0.6",
    "@waku/message-encryption": "^0.0.7",

By killing a local nwaku node.
libp2p reconnects automatically once the node is back up.
There may be a lack of back off during the dial retry as mentioned in status-im/status-web#320

Next step:

  1. Try to reproduce when connecting to fleet by killing internet connection
  2. Try to reproduce by leaving browser open for 10min

@fryorcraken
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I have seen some issue when reconnecting after internet loss.

Noise handshake goes well but identify protocol fails.

waku-org/nwaku#1485 open but will investigate more locally.

@fryorcraken
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I have ran the eth-pm example locally (uses relay) for over 10 minutes in Firefox. The example could still send and receiv messages after the lapse time.
There was no disconnection messages in the logs.

It seems that this specific bug is now resolved.

Keeping the issue open until the reconnection problem is solved.

@fryorcraken
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No problem either when running in brave from the hosted example https://examples.waku.org/eth-pm keeping the tab open for over 10min.

@fryorcraken
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fryorcraken commented Jan 17, 2023

new error reported by @therealjmj is that the timeout happens after 30-40min.
Not sure if it is similar to waku-org/nwaku#1485 or not
First step would be to reproduce locally. waku-org/nwaku#1485 has very specific log output (noise happens but then it fails) so we can understand whether we are facing 1 or 2 issues.

If it's 2 different issues, the 30-40min timeout is more important because it's more generic use case and should prioritized.

If it's the same issue, then let's look at waku-org/nwaku#1485 (comment) and understand how js-waku and nwaku can handle idle connections etc.

@danisharora099
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Not sure if it is related but the inconsistency with relay messages is seen here: waku-org/examples.waku.org#199

@danisharora099
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danisharora099 commented Jan 30, 2023

websocket connection was alive for ~1.4 hours and it can be seen that no messages were sent in the interim and only towards the end (content downloaded)

upon sleeping the laptop, and reopening, that websocket connection was terminated but a new one was immediately opened.

Screenshot 2023-01-30 at 1 28 07 PM

@fryorcraken
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As discussed with @danisharora099, this can be closed with guidelines for user that experience it again (enable debug log, share full logs)

@danisharora099
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danisharora099 commented Feb 1, 2023

As discussed with @danisharora099, this can be closed with guidelines for user that experience it again (enable debug log, share full logs)

⬆️

Closing this for now.
If there is an issue again, feel free to reopen this, or create a new, issue with logs. You can enable logs using DEBUG=waku*,libp2p*
A reproducible example along would also help!

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