Lab3 Error can't read the block: &{NOT_FOUND}

@etrelz said:
root@8a8c2b2100f1:/opt/gopath/src/github.com/hyperledger/fabric# peer channel fetch oldest allarewelcome.block -c allarewelcome --orderer orderer.example.com:7050

2019-12-16 23:44:18.741 UTC [channelCmd] InitCmdFactory -> INFO 001 Endorser and orderer connections initialized
2019-12-16 23:44:18.743 UTC [cli.common] readBlock -> INFO 002 Got status: &{NOT_FOUND}
Error: can't read the block: &{NOT_FOUND}

What am i doing wrong? I fix one error just to find another.

Hi, is this peer0 or peer1?
did you run the ./bootstrap.sh script when you started the network? Then peer0 should automatically join the channel.

If you did not run the script, check your starterFiles ==> config folder, see if the allarewelcome.tx file is there. If it is not, then the channel has not been created yet.

You can also check the orderer log by typing docker logs --details ordererID

@etrelz In case you are still facing this issue, this is how i solved it.
1. Ran startup.sh, so that recreated the channel allarewelcome (and deleted all the existing peer containers)
2. For both the peer definitions in docker-compose.yml file, i changed image: hyperledger/fabric-peer to image: hyperledger/fabric-peer:1.4.4
After starting the peer containers, i was able to fetch the genesis block for allarewelcome channel, as also able to join it.
Hope that helps!

@LasToronto said:
@manjushaawasthi
it was a good advice, still in my case did not resolve it.
After logging into the peer1, the command:
peer channel fetch oldest allarewelcome.block -c allarewelcome --orderer orderer.example.com:7050

gets me an error:
2020-01-24 03:05:58.059 UTC [channelCmd] InitCmdFactory -> INFO 001 Endorser and orderer connections initialized
2020-01-24 03:05:58.061 UTC [cli.common] readBlock -> INFO 002 Got status: &{NOT_FOUND}
Error: can't read the block: &{NOT_FOUND}

Hi @LasToronto ,
Please go into the orderer container and check its log, maybe there is an connection error.

Also, please check that the channel allarewelcome is actually up and running. You can see that in the orderer log as well.

If both connection is fine & channel running, there migth be an issue with peer1 authorization. Please type 'printenv' inside peer1 container, and check that all environment variables are set correctly.

I hope this helps. If not, let me know!

@Niklaskkkk
I issued the command from the Peer1.

@LasToronto said:
@Niklaskkkk
I issued the command from the Peer1.

Hi @LasToronto , did you make it work? If not, what did the orderer log tell you? Also, check the Peer1 container log & please post both logs here, I will try to help you.

Maybe also try to reset your network first, by doing:
./teardown.sh
./bootstrap.sh

Let me know how it goes.

I faced same issue, it happens whenever we clean the network, I resolve this issue by

go to Peer0 and create channel again
$ peer channel create -o orderer.example.com:7050 -c allarewelcome -f /etc/hyperledger/configtx/allarewelcome.tx
$ peer0.org1.example.com peer channel join -b allarewelcome.block

go to Peer1 and join the channel
$ peer channel fetch oldest allarewelcome.block -c allarewelcome --orderer orderer.example.com:7050
$ peer channel join -b allarewelcome.block

This works from rather than running bootstrap.sh every time.

@moolkothari said:
I faced same issue, it happens whenever we clean the network, I resolve this issue by

go to Peer0 and create channel again
$ peer channel create -o orderer.example.com:7050 -c allarewelcome -f /etc/hyperledger/configtx/allarewelcome.tx
$ peer0.org1.example.com peer channel join -b allarewelcome.block

go to Peer1 and join the channel
$ peer channel fetch oldest allarewelcome.block -c allarewelcome --orderer orderer.example.com:7050
$ peer channel join -b allarewelcome.block

This works from rather than running bootstrap.sh every time.

Great suggestion @moolkothari . you can also adjust these commands inside the startup script. I did this during the tutorials, so basically the only command I had to run was startup, to restart the network (but remember to comment out generation of new keys etc since it is just demo netowork)