Algorand Node not Syncing - my node version 2.1.4

post by debasish on Apr 27, 2021

Hi Team ,

Algorand node has stopped syncing with the below error logs. Any help please.

{"file":"bootstrap.go","function":"github.com/algorand/go-algorand/tools/network.ReadFromSRV","level":"info","line":43,"msg":"ReadFromBootstrap: DNS LookupSRV failed when using system resolver: no signature in DNS response for _algobootstrap._tcp.mainnet.algorand.network","time":"2021-03-04T11:24:17.714479Z"}

{"file":"wsNetwork.go","function":"github.com/algorand/go-algorand/network.(*WebsocketNetwork).meshThread","level":"info","line":1341,"msg":"got no DNS addrs for network mainnet","name":"","time":"2021-03-04T11:24:23.716010Z"}

{"file":"bootstrap.go","function":"github.com/algorand/go-algorand/tools/network.ReadFromSRV","level":"info","line":43,"msg":"ReadFromBootstrap: DNS LookupSRV failed when using system resolver: no answer for (_algobootstrap._tcp.mainnet.algorand.network., 33) from DNS servers [127.0.0.11:53]","time":"2021-03-04T11:25:18.551284Z"}

I upgraded it to 2.5.5 but still the issue persists.

@fabrice could you offer any help on this.

post by fabrice on Apr 27, 2021

What does your data/config.json contains?

Can you run:

dig @8.8.8.8 _algobootstrap._tcp.mainnet.algorand.network srv

and post the output?

Can you run GitHub - fabrice102/go-algorand-test-dns-bootstrap: Small software to help debug/test DNS bootstrap of Algorand and post the output?

post by debasish on Apr 28, 2021

@fabrice my data/config.json contains

{
  "Archival": true,
  "isIndexerActive": true,
  "GossipFanout": 4,
  "BaseLoggerDebugLevel": 1,
  "IncomingConnectionsLimit": -1,
  "NetAddress": "0.0.0.0:4160",
  "EndpointAddress": "0.0.0.0:8887",
  "LogSizeLimit": 1073741824,
  "EnableMetricReporting": false,
  "EnableOutgoingNetworkMessageFiltering": true,
  "EnableIncomingMessageFilter": false,
  "CatchupParallelBlocks": 50
}

i have set up the nodes in 2 servers and after upgrading the node to 2.5.5 in both the servers it has started syncing in one and not in another.

The server where is is syncing the latest block is 156000.

when i do curl to get latest block in server not syncing i get the below

{"lastRound":13409875,"lastConsensusVersion":"https://github.com/algorandfoundation/specs/tree/3a83c4c743f8b17adfd73944b4319c25722a6782","nextConsensusVersion":"https://github.com/algorandfoundation/specs/tree/ac2255d586c4474d4ebcf3809acccb59b7ef34ff","nextConsensusVersionRound":13409876,"nextConsensusVersionSupported":true,"timeSinceLastRound":0,"catchupTime":0,"hasSyncedSinceStartup":false,"stoppedAtUnsupportedRound":false}

Below are the logs from node.log from Server not syncing

{"Context":"Agreement","Hash":"","ObjectPeriod":0,"ObjectRound":0,"ObjectStep":0,"Period":0,"Round":12408305,"Sender":"","Step":13,"Type":"StepTimeout","Weight":0,"WeightTotal":0,"file":"trace.go","function":"github.com/algorand/go-algorand/agreement.(*tracer).logFastTimeout","level":"info","line":204,"msg":"timeout fired on (12408305, 0, 13) with value 1h13m41.202589056s (napping: false)","time":"2021-03-04T11:23:49.131181Z"}

{"Context":"Agreement","Hash":"AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA","ObjectPeriod":0,"ObjectRound":0,"ObjectStep":0,"Period":0,"Round":12408305,"Sender":"","Step":255,"Type":"VoteAttest","Weight":0,"WeightTotal":0,"file":"actions.go","function":"github.com/algorand/go-algorand/agreement.pseudonodeAction.do","level":"info","line":372,"msg":"attested to {{}} 0 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAY5HFKQ AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA at (12408305, 0, 255)","time":"2021-03-04T11:23:49.131461Z"}

{"file":"bootstrap.go","function":"github.com/algorand/go-algorand/tools/network.ReadFromSRV","level":"info","line":43,"msg":"ReadFromBootstrap: DNS LookupSRV failed when using system resolver: no signature in DNS response for _algobootstrap._tcp.mainnet.algorand.network","time":"2021-03-04T11:24:17.714479Z"}

{"file":"bootstrap.go","function":"github.com/algorand/go-algorand/tools/network.ReadFromSRV","level":"info","line":43,"msg":"ReadFromBootstrap: DNS LookupSRV failed when using system resolver: no answer for (_algobootstrap._tcp.mainnet.algorand.network., 33) from DNS servers [127.0.0.11:53]","time":"2021-03-04T11:25:18.551284Z"}

{"file":"wsNetwork.go","function":"github.com/algorand/go-algorand/network.(*WebsocketNetwork).meshThread","level":"info","line":1341,"msg":"got no DNS addrs for network mainnet","name":"","time":"2021-03-04T11:25:24.552928Z"}

{"instanceName":"EwdHZyOJZ6fphxs2","level":"info","msg":"/ApplicationState/Shutdown","session":"","time":"2021-03-04T11:25:46.548776Z"}

post by debasish on Apr 28, 2021

@fabrice Issue is resolved now in both the servers after upgrading it to 2.5.5 . Thanks for all the help.