Lab 2: Error: can't read the block: &{NOT_FOUND}

kcribb12

When executing the following command (near the end of Lab 2):

[email protected]:/opt/gopath/src/github.com/hyperledger/fabric# peer channel fetch oldest allarewelcome.block -c allarewelcome --orderer orderer.example.com:7050

I come across the following error:

2020-04-22 11:11:41.491 UTC [channelCmd] InitCmdFactory -> INFO 001 Endorser and orderer connections initialized
2020-04-22 11:11:41.493 UTC [cli.common] readBlock -> INFO 002 Got status: &{NOT_FOUND}
Error: can't read the block: &{NOT_FOUND}

Any suggestions so I can progress further will be much appreciated.

Thanks

Niklaskkkk

@kcribb12 said:
When executing the following command (near the end of Lab 2):

[email protected]:/opt/gopath/src/github.com/hyperledger/fabric# peer channel fetch oldest allarewelcome.block -c allarewelcome --orderer orderer.example.com:7050

I come across the following error:

2020-04-22 11:11:41.491 UTC [channelCmd] InitCmdFactory -> INFO 001 Endorser and orderer connections initialized
2020-04-22 11:11:41.493 UTC [cli.common] readBlock -> INFO 002 Got status: &{NOT_FOUND}
Error: can't read the block: &{NOT_FOUND}

Any suggestions so I can progress further will be much appreciated.

Thanks

Hi @kcribb12

Did you run the ./bootstrap.sh script when you started the network? If so then peer0 should automatically join the channel, or is it peer1 you are trying to join?

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 artifact has not been created yet.

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

Let me know how it goes. The above command (-- details ordererID) is very useful, so please take a look and let me know what the log says.

kcribb12

@Niklaskkkk Thanks for your reply, I've checked to see if the allarewelcome.tx file is there and it is.

From what I can tell by the lab 2 text, I believe it is asking me to join peer 1.

When I type in (-- details ordererID) in two different scenarios I get the following ouputs:

[email protected]:~/Desktop/fabric-samples/startFiles$ --details ordererID
--details: command not found

AND

[email protected]:/opt/gopath/src/github.com/hyperledger/fabric# --details ordererID
bash: --details: command not found

So I may need more guidance in executing this command correctly.

I have listed the output before hand to add more context:

[email protected]:~/Desktop/fabric-samples/startFiles$ docker-compose -f docker-compose.yml up -d peer0.org1.example.com peer1.org1.example.com cli
WARNING: The COMPOSE_PROJECT_NAME variable is not set. Defaulting to a blank string.
Starting cli ... done
Starting orderer.example.com ... done
Starting peer0.org1.example.com ... done
Starting peer1.org1.example.com ... done
[email protected]:~/Desktop/fabric-samples/startFiles$ docker ps --filter name=peer
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
3853f9ec9819 hyperledger/fabric-peer "peer node start" 15 hours ago Up 25 seconds 0.0.0.0:8051->7051/tcp, 0.0.0.0:8053->7053/tcp peer1.org1.example.com
0fd3b6854be8 hyperledger/fabric-peer "peer node start" 15 hours ago Up 25 seconds 0.0.0.0:7051->7051/tcp, 0.0.0.0:7053->7053/tcp peer0.org1.example.com
[email protected]:~/Desktop/fabric-samples/startFiles$ docker exec -it peer1.org1.example.com bash
[email protected]:/opt/gopath/src/github.com/hyperledger/fabric# export CORE_PEER_MSPCONFIGPATH=/etc/hyperledger/msp/users/[email protected]/msp
[email protected]:/opt/gopath/src/github.com/hyperledger/fabric# peer channel fetch oldest allarewelcome.block -c allarewelcome --orderer orderer.example.com:7050
2020-04-23 02:32:45.031 UTC [channelCmd] InitCmdFactory -> INFO 001 Endorser and orderer connections initialized
2020-04-23 02:32:45.032 UTC [cli.common] readBlock -> INFO 002 Got status: &{NOT_FOUND}
Error: can't read the block: &{NOT_FOUND}

I appreciate your help so far.

Thanks

Niklaskkkk

@kcribb12 said:

@Niklaskkkk Thanks for your reply, I've checked to see if the allarewelcome.tx file is there and it is.

From what I can tell by the lab 2 text, I believe it is asking me to join peer 1.

When I type in (-- details ordererID) in two different scenarios I get the following ouputs:

[email protected]:~/Desktop/fabric-samples/startFiles$ --details ordererID
--details: command not found

AND

[email protected]:/opt/gopath/src/github.com/hyperledger/fabric# --details ordererID
bash: --details: command not found

So I may need more guidance in executing this command correctly.

I have listed the output before hand to add more context:

[email protected]:~/Desktop/fabric-samples/startFiles$ docker-compose -f docker-compose.yml up -d peer0.org1.example.com peer1.org1.example.com cli
WARNING: The COMPOSE_PROJECT_NAME variable is not set. Defaulting to a blank string.
Starting cli ... done
Starting orderer.example.com ... done
Starting peer0.org1.example.com ... done
Starting peer1.org1.example.com ... done
[email protected]:~/Desktop/fabric-samples/startFiles$ docker ps --filter name=peer
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
3853f9ec9819 hyperledger/fabric-peer "peer node start" 15 hours ago Up 25 seconds 0.0.0.0:8051->7051/tcp, 0.0.0.0:8053->7053/tcp peer1.org1.example.com
0fd3b6854be8 hyperledger/fabric-peer "peer node start" 15 hours ago Up 25 seconds 0.0.0.0:7051->7051/tcp, 0.0.0.0:7053->7053/tcp peer0.org1.example.com
[email protected]:~/Desktop/fabric-samples/startFiles$ docker exec -it peer1.org1.example.com bash
[email protected]:/opt/gopath/src/github.com/hyperledger/fabric# export CORE_PEER_MSPCONFIGPATH=/etc/hyperledger/msp/users/[email protected]/msp
[email protected]:/opt/gopath/src/github.com/hyperledger/fabric# peer channel fetch oldest allarewelcome.block -c allarewelcome --orderer orderer.example.com:7050
2020-04-23 02:32:45.031 UTC [channelCmd] InitCmdFactory -> INFO 001 Endorser and orderer connections initialized
2020-04-23 02:32:45.032 UTC [cli.common] readBlock -> INFO 002 Got status: &{NOT_FOUND}
Error: can't read the block: &{NOT_FOUND}

I appreciate your help so far.

Thanks

Hi @kcribb12 !

First, you need to put in the actual orderer ID in the command, not the text. So, first do a docker ps -a, then you find the ID of all your running containers. Copy paste the one for the orderer, then run the command "--details insertIDyoucopypastedhere"

I also see your containers have been running for 15 hours, so there migth be some changes you did earlier that has not been reset.

I would recommend you to prune the whole network, and restart from lab1. This will be good for you, as you will get a better understanding for the netowrk process, how docker works and CLI practice.

Let me know if there are still issues, and good luck!