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lab 10: Error: backing Kafka cluster has not completed booting; try again later

Hi, so after setting up a Kafka cluster in Lab9, I then struggle to create the standard channel allarewelcome with this error message when I run bootstrap.sh
Is this an issue in connection between kafka nodes & the orderer?

Create the channel
docker exec -e "CORE_PEER_LOCALMSPID=Org1MSP" -e "CORE_PEER_MSPCONFIGPATH=/etc/hyperledger/msp/users/[email protected]/msp" peer0.org1.example.com peer channel create -o orderer.example.com:7050 -c allarewelcome -f /etc/hyperledger/configtx/allarewelcome.tx

Error: got unexpected status: SERVICE_UNAVAILABLE -- backing Kafka cluster has not completed booting; try again later

This is my boostrap.sh:

export PATH=$GOPATH/src/github.com/hyperledger/fabric/build/bin:${PWD}/../bin:${PWD}:$PATH
export FABRIC_CFG_PATH=${PWD}
CHANNEL_NAME=allarewelcome

remove previous crypto material and config transactions
rm -fr config/*
rm -fr crypto-config/*

generate crypto material
cryptogen generate --config=./crypto-config.yaml
if [ "$?" -ne 0 ]; then
echo "Failed to generate crypto material..."
exit 1
fi

generate genesis block for orderer
configtxgen -profile OneOrgOrdererGenesis -outputBlock ./config/genesis.block
if [ "$?" -ne 0 ]; then
echo "Failed to generate orderer genesis block..."
exit 1
fi

generate channel configuration transaction
configtxgen -profile OneOrgChannel -outputCreateChannelTx ./config/allarewelcome.tx -channelID allarewelcome
if [ "$?" -ne 0 ]; then
echo "Failed to generate channel configuration transaction..."
exit 1
fi

generate anchor peer transaction
configtxgen -profile OneOrgChannel -outputAnchorPeersUpdate ./config/Org1MSPanchors.tx -channelID allarewelcome -asOrg Org1MSP
if [ "$?" -ne 0 ]; then
echo "Failed to generate anchor peer update for Org1MSP..."
exit 1
fi

sleep 5s

set -ev

don't rewrite paths for Windows Git Bash users
export MSYS_NO_PATHCONV=1

docker-compose -f docker-compose.yml down

docker-compose -f docker-compose.yml up -d zookeeper0.example.com zookeeper1.example.com zookeeper2.example.com kafka0.example.com kafka1.example.com

sleep 120s

docker-compose -f docker-compose.yml up -d Org1ca.example.com Org2ca.example.com orderer.example.com peer1.org1.example.com couchdbOrg1Peer1 couchdbOrg1Peer0 couchdbOrg2Peer0 couchdbOrg2Peer1 peer0.org1.example.com peer0.org2.example.com peer1.org2.example.com cli

wait for Hyperledger Fabric to start
incase of errors when running later commands, issue export FABRIC_START_TIMEOUT=
export FABRIC_START_TIMEOUT=10
echo ${FABRIC_START_TIMEOUT}
sleep ${FABRIC_START_TIMEOUT}

Create the channel
docker exec -e "CORE_PEER_LOCALMSPID=Org1MSP" -e "CORE_PEER_MSPCONFIGPATH=/etc/hyperledger/msp/users/[email protected]/msp" peer0.org1.example.com peer channel create -o orderer.example.com:7050 -c allarewelcome -f /etc/hyperledger/configtx/allarewelcome.tx
Join peer0.org1.example.com to the channel.
docker exec -e "CORE_PEER_LOCALMSPID=Org1MSP" -e "CORE_PEER_MSPCONFIGPATH=/etc/hyperledger/msp/users/[email protected]/msp" peer0.org1.example.com peer channel join -b allarewelcome.block
Peer1.org1 fetch genesis block from the channel before joining
docker exec -e "CORE_PEER_LOCALMSPID=Org1MSP" -e "CORE_PEER_MSPCONFIGPATH=/etc/hyperledger/msp/users/[email protected]/msp" peer1.org1.example.com peer channel fetch oldest allarewelcome.block -c allarewelcome --orderer orderer.example.com:7050
Join peer1.org1.example.com to the channel.
docker exec -e "CORE_PEER_LOCALMSPID=Org1MSP" -e "CORE_PEER_MSPCONFIGPATH=/etc/hyperledger/msp/users/[email protected]/msp" peer1.org1.example.com peer channel join -b allarewelcome.block

And this is the configtx.yml profiles:

Profiles:

OrgTwoChannel:
    Consortium: SampleConsortium
    Application:
        <<: *ApplicationDefaults
        Organizations:
            - *Org2

AllAreWelcomeTwo:
    Consortium: SampleConsortium
    Application:
        <<: *ApplicationDefaults
        Organizations:
            - *Org1


OneOrgOrdererGenesis:
    Orderer:
        <<: *OrdererDefaults
        Organizations:
            - *OrdererOrg
    Consortiums:
        SampleConsortium:
            Organizations:
                - *Org1
OneOrgChannel:
    Consortium: SampleConsortium
    Application:
        <<: *ApplicationDefaults
        Organizations:
            - *Org1
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