I am using Hyperledger Fabric in combination with docker. My question is, how do i find out which peers verified a transaction in Hyperledger Fabric?
I use this code to instantiate my chaincode, which works:
docker exec -e "CORE_PEER_ADDRESS=peer0.org1.example.com:7051" cli peer chaincode instantiate -o orderer.example.com:7050 -C mychannel -n mycc -l golang -v ${CC_VERSION} -c '{"Args":["entry","5"]}' -P "OutOf(2, 'Org1MSP.member', 'Org1MSP.member')"
I am using peers from the same organization to verify the transaction.
All of my code works, but after running the code (which includes invokes), can i somehow check the block to see which peers endorsed the transactions that were made?
I have tried using the configtxlator to decode and view the block, but cannot find any information about endorsements in mychannel.block.
Probably mychannel.block was old
You have to check the latest block, where a transaction has been committed
------ OR -----
Use query with txid
A sample snippet of NodeJS
await this.channel.queryTransaction(trxnID, peer);
Took endorser block from large payload
"endorser": {
"Mspid": "nbdMSP",
"IdBytes": "-----BEGIN CERTIFICATE-----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\n1O4Ak+jJMrQvOook+JRq3kHmCVKDig==\n-----END CERTIFICATE-----\n"
},
Related
Using docker-desktop on macOS.
I'm trying to run a node following the instructions on this page.
The database name is node, which is the same as the username: node. The user has access to the database and can log in using psql client.
Connection strings I've tried in the .env file:
postgresql://node#localhost/node
postgresql://node:password#localhost/node
postgresql://node:password#localhost:5432/node
postgresql://node:password#127.0.0.1:5432/node
postgresql://node:password#127.0.0.1/node
When I run the start command: cd ~/.chainlink-kovan && docker run -p 6688:6688 -v ~/.chainlink-kovan:/chainlink -it --env-file=.env smartcontract/chainlink local n , using docker-desktop on macOS, I get the following stack trace:
2020-09-15T14:24:41Z [INFO] Starting Chainlink Node 0.8.15 at commit a904730bd62c7174b80a2c4ccf885de3e78e3971 cmd/local_client.go:50
2020-09-15T14:24:41Z [INFO] SGX enclave *NOT* loaded cmd/enclave.go:11
2020-09-15T14:24:41Z [INFO] This version of chainlink was not built with support for SGX tasks cmd/enclave.go:12
2020-09-15T14:24:41Z [INFO] Locking postgres for exclusive access with 500ms timeout orm/orm.go:69
2020-09-15T14:24:41Z [ERROR] unable to lock ORM: dial tcp 127.0.0.1:5432: connect: connection refused logger/default.go:139 stacktrace=github.com/smartcontractkit/chainlink/core/logger.Error
/chainlink/core/logger/default.go:117
...
Does anyone know how I can resolve this?
The problem probably caused by the fact that your chainlink database has been locked with Exclusive Lock and before stopping node that locks never removed.
What you do in this situation (as what works for me) is use PgAdmin Ui or similar way to find all Locks then find the Exclusive Lock that is held on the chainlink database and note down its Process id or ids (if multiple exclusive locks there are on chainlink DB)
Log in to your pg client and run SELECT pg_terminate_backend(<pid>) or SELECT pg_cancel_backend(<pid>); Enter PID of those locks here without quotes and meanwhile keep refreshing on pg admin URL to see if those processes stopped If stopped then rerun your chainlink node.
The problem is with docker networking.
Add --network host to the docker run command so that it is:
cd ~/.chainlink-kovan && docker run -p 6688:6688 -v ~/.chainlink-kovan:/chainlink -it --env-file=.env smartcontract/chainlink --network host local n
This fixes the issue.
Error:
error getting broadcast client: orderer client failed to connect to
orderer.example.com:7050: failed to create new connection: context
deadline exceeded
I'm getting this error when trying to start a private collection in Fabric.
Following the docs properly and everything at the basic level seems to work (creating first app, creating first network, and extending first network - have not tried upgrading network parts yet). But as I create the private collections feature, it stops precisely at this step.
This happens when I start the network, go into the peer container using docker exec -it cli bash and instantiate the chaincode on the peer (peer chaincode install -n marblesp -v 1.0 -p github.com/chaincode/marbles02_private/go/) which works.
But when I instantiate it on the channel (peer chaincode instantiate -o orderer.example.com:7050 --tls --cafile $ORDERER_CA -C mychannel -n marblesp -v 1.0 -c '{"Args":["init"]}' -P "OR('Org1MSP.member','Org2MSP.member')" --collections-config $GOPATH/src/github.com/chaincode/marbles02_private/collections_config.json --connTimeout 30s) it produces this error and I dont know how proceed further.
Can someone help me understand what's wrong here or how to get my chaincode instantiated on my channel because I have to get the private collections to work?
Its possible this question is related to some communication between different docker images as my orderer and peer are in different containers. My commands run in the peer container (atleast thats what I think) and its unable to talk to orderer container.
Here are kinematic screenshots:
UPDATE:
This is my command: (peer chaincode instantiate -o orderer.example.com:7050 --tls --cafile $ORDERER_CA -C mychannel -n marblesp -v 1.0 -c '{"Args":["init"]}' -P "OR('Org1MSP.member')" --collections-config $GOPATH/src/github.com/marbles02_private/collections_config.json --connTimeout 30s).
I get this without sudo:
Error: error getting broadcast client: orderer client failed to connect to orderer.example.com:7050: failed to create new connection: context deadline exceeded
and with sudo I get
Error: error getting endorser client for instantiate: endorser client failed to connect to 0.0.0.0:7051: failed to create new connection: context deadline exceeded
and in sudo case, it doesn't even wait 30s, it shows error within ~2 seconds.
I am new to hyperledger fabric and I am trying to create a sample blockchain network from scratch using hyperledger fabric. In order to do so, I configured "crypto-config.yaml" file, and generated the respective organization's certificates by running it against the "cryptogen" tool. I also generated the respective "channel-artifacts" by configuring the "configtx.yaml" file and running it against the configtxgen tool. I then modified the "docker-compose-cli.yaml" file and "docker-compose-base" file.
Now, in order to bootstrap the network, I ran the following docker command:
docker-compose -f docker-compose-cli.yaml up
I then executed the following commands:
docker exec -it cli bash
export CHANNEL_NAME=testChannel
peer channel create -o orderer.example.com:7050 -c testChannel -f ./channel-artifacts/testChannel.tx
On executing the "peer channel create" command I received the following error:
Error: failed to create deliver client: orderer client failed to connect to orderer.example.com:7050: failed to create new connection: context deadline exceeded
I am not sure as to why this error is occurring. My configuration for the Address section in OrdererDefaults (in configtx.yaml file) is:
Ordertype:
- solo
Addresses:
- orderer.example.com:7050
Hence, please let me know if I am missing something in order to clear the "peer channel create" issue.
do a docker ps and see if the orderer is up and running
if not do a docker logs orderer.example.com and check orderers logs
usually the orderer logs give clear clues on what has happened
read the logs and fix the issue . that's what i did
and instead of creating a peer first going inside it and creating a channel ,i suggest you create the channel first and join the peer to it afterwards
Create the channel
docker exec -e "CORE_PEER_LOCALMSPID=Org1MSP" -e "CORE_PEER_MSPCONFIGPATH=/etc/hyperledger/msp/users/Admin#org1.tracexyz.com/msp" peer0.org1.tracexyz.com peer channel create -o orderer.tracexyz.com:7050 -c cheeseproduction -f /etc/hyperledger/configtx/channel.tx
Add peer 0 to the channel
docker exec -e "CORE_PEER_LOCALMSPID=Org1MSP" -e "CORE_PEER_MSPCONFIGPATH=/etc/hyperledger/msp/users/Admin#org1.tracexyz.com/msp" peer0.org1.tracexyz.com peer channel join -b cheeseproduction.block
Fetch from peer 1
docker exec -e "CORE_PEER_MSPCONFIGPATH=/etc/hyperledger/msp/users/Admin#org1.tracexyz.com/msp" peer1.org1.tracexyz.com peer channel fetch config -o orderer.tracexyz.com:7050 -c cheeseproduction
Join peer 1 also to the channel
docker exec -e "CORE_PEER_LOCALMSPID=Org1MSP" -e "CORE_PEER_MSPCONFIGPATH=/etc/hyperledger/msp/users/Admin#org1.tracexyz.com/msp" -e "CORE_PEER_ADDRESS=peer1.org1.tracexyz.com:7061" peer0.org1.tracexyz.com peer channel join -b cheeseproduction.block
this is how i connected two peers to a single channel. my org name was tracexyz (tracexyz instead of example ) and my channel name was cheeseproduction
I guesss you can replace those with your own values
after doing these go inside the peer with
docker exec -it cli bash
it will take you inside the default peer which is peer0.org1
then do a peer channel list to see the channels to which peer0 has joined
you will see it will list cheeseproduction
I am modifying existing docker-compose.yml, crypto-config.yaml and configtx.yaml to add a extra peer to the existing hyperledger composer sample, located under hlfv11 folder of the fabric-tools/fabric-scripts.
I regenerated required certificates and genesis block and it generates the peer container without any issue.
However I am having difficulty adding this peer to a channel. I modified startFabric.sh to join this peer to a channel, however I am getting an error with following message:
Error getting endorser client channel: endorser client failed to connect to peer1.org1.example.com:8051: failed to create a new connection: context deadline exceeded.
Can someone please help or advise?
I was trying to join me additional peer to channel directly through PEER CHANELL JOIN command. It actually requires to fetch the channel through orderer on new peer and then it can join it.
Code update follows:
# Create the channel
docker exec peer0.org1.example.com peer channel create -o
orderer.example.com:7050 -c composerchannel -f
/etc/hyperledger/configtx/composer-channel.tx
# Join peer0.org1.example.com to the channel.
docker exec -e "CORE_PEER_MSPCONFIGPATH=
/etc/hyperledger/msp/users/Admin#org1.example.com/msp
peer0.org1.example.com peer channel join -b composerchannel.block
# Create the channel
docker exec -e "CORE_PEER_MSPCONFIGPATH=
/etc/hyperledger/msp/users/Admin#org1.example.com/msp"
peer1.org1.example.com peer channel fetch config -o orderer.example.com:7050
-c composerchannel
# Join peer1.org1.example.com to the channel.
docker exec -e "CORE_PEER_MSPCONFIGPATH=
/etc/hyperledger/msp/users/Admin#org1.example.com/msp
peer1.org1.example.com peer channel join -b composerchannel_config.block
In my CI chain I execute end-to-end tests after a "docker-compose up". Unfortunately my tests often fail because even if the containers are properly started, the programs contained in my containers are not.
Is there an elegant way to verify that my setup is completely started before running my tests ?
You could poll the required services to confirm they are responding before running the tests.
curl has inbuilt retry logic or it's fairly trivial to build retry logic around some other type of service test.
#!/bin/bash
await(){
local url=${1}
local seconds=${2:-30}
curl --max-time 5 --retry 60 --retry-delay 1 \
--retry-max-time ${seconds} "${url}" \
|| exit 1
}
docker-compose up -d
await http://container_ms1:3000
await http://container_ms2:3000
run-ze-tests
The alternate to polling is an event based system.
If all your services push notifications to an external service, scaeda gave the example of a log file or you could use something like Amazon SNS. Your services emit a "started" event. Then you can subscribe to those events and run whatever you need once everything has started.
Docker 1.12 did add the HEALTHCHECK build command. Maybe this is available via Docker Events?
If you have control over the docker engine in your CI setup you could execute docker logs [Container_Name] and read out the last line which could be emitted by your application.
RESULT=$(docker logs [Container_Name] 2>&1 | grep [Search_String])
logs output example:
Agent pid 13
Enter passphrase (empty for no passphrase): Enter same passphrase again: Identity added: id_rsa (id_rsa)
#host SSH-2.0-OpenSSH_6.6.1p1 Ubuntu-2ubuntu2.6
#host SSH-2.0-OpenSSH_6.6.1p1 Ubuntu-2ubuntu2.6
parse specific line:
RESULT=$(docker logs ssh_jenkins_test 2>&1 | grep Enter)
result:
Enter passphrase (empty for no passphrase): Enter same passphrase again: Identity added: id_rsa (id_rsa)