CODEWITHSUNDEEP
hyperledger-fabrichyperledgerhyperledger-composerhyperledger-explorer
user9040429
user9040429

Reputation: 720

Not able to get hyperledger fabric details on hyperledger explorer

I downloaded hyperledger explorer and I want to explore the blockchain network setup by two org tutorial. My config file for explorer is

{
 "network-config": {
    "org1": {
        "name": "peerOrg1",
        "mspid": "Org1MSP",
        "peer1": {
            "requests": "grpc://127.0.0.1:7051",
            "events": "grpc://127.0.0.1:7053",
            "server-hostname": "peer0.org1.example.com"

        },          
        "peer2": {
            "requests": "grpc://127.0.0.1:8051",
            "events": "grpc://127.0.0.1:8053",
            "server-hostname": "peer1.org1.example.com"

        },          
        "admin": {
            "key": "/home/mfgteg/fabric-samples/first-example/crypto-config/peerOrganizations/org1.example.com/users/[email protected]/msp/keystore",
            "cert": "/home/mfgteg/fabric-samples/first-example/crypto-config/peerOrganizations/org1.example.com/users/[email protected]/msp/signcerts"
        }
    },      
    "org2": {
        "name": "peerOrg2",
        "mspid": "Org2MSP",
        "peer1": {
            "requests": "grpc://127.0.0.1:9051",
            "events": "grpc://127.0.0.1:9053",
            "server-hostname": "peer0.org2.example.com"

        },          
        "peer2": {
            "requests": "grpc://127.0.0.1:10051",
            "events": "grpc://127.0.0.1:10053",
            "server-hostname": "peer1.org2.example.com"

        },          
        "admin": {
            "key": "/home/mfgteg/fabric-samples/first-example/crypto-config/peerOrganizations/org2.example.com/users/[email protected]/msp/keystore",
            "cert": "/home/mfgteg/fabric-samples/first-example/crypto-config/peerOrganizations/org2.example.com/users/[email protected]/msp/signcerts"
        }
    }       
 },
 "host": "localhost",
 "port": "8080",
 "channel": "mychannel",
 "keyValueStore": "/tmp/fabric-client-kvs",
 "eventWaitTime": "30000",
 "mysql": {
    "host": "127.0.0.1",
    "port": "3306",
    "database": "fabricexplorer",
    "username": "root",
    "passwd": "****"
 }
}

I even tried keeping the tls certificates and kept grpcs instead of grpc. On explorer window its not showing channel ,peer and block information.

Below is some part of the log :

Error: listen EADDRINUSE :::8080
at Object._errnoException (util.js:1024:11)
at _exceptionWithHostPort (util.js:1046:20)
at Server.setupListenHandle [as _listen2] (net.js:1351:14)
at listenInCluster (net.js:1392:12)
at Server.listen (net.js:1476:7)
at Object.<anonymous> (/home/mfgteg/blockchain-explorer/main.js:167:19)
at Module._compile (module.js:635:30)
at Object.Module._extensions..js (module.js:646:10)
at Module.load (module.js:554:32)
at tryModuleLoad (module.js:497:12)

Upvotes: 0

Views: 1082

Answers (3)

user9040429
user9040429

Reputation: 720

I replaced loopback ip address with localhost and it worked.

Upvotes: 0

R Thatcher
R Thatcher

Reputation: 5570

This error you are seeing Error: listen EADDRINUSE :::8080 says that you already have a process running on PORT 8080 - it might be Composer Playground. One of the configuration files allows you to specify the port for Explorer to run on.

If you are using the 'standard' Composer Tutorial for MultiOrg then it uses grpcs so the those URLs need to be modified, and the tlscerts need to be added for the peers (refer to the connection.json file for those)

Upvotes: 0

Sherly Septiani
Sherly Septiani

Reputation: 59

EADDRINUSE :::8080 means you've already used the port for some other process.

Change the port setting in config.json file to an unused port instead, for example: "port": "5000"
Try to start the server again.

Upvotes: 2

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