The utility can either create a network with 1 cop, 1 orderer and the specified number of peers or add the specified number of peers to the existing network.

#Code Base

fabric commit level: b0e902ea482a5dd4f5a82b8051052c2915811e59
fabric-sdk-node: a7f57baca0ece7111f74f7b9174c2083df7cda86

#Usage

./driver.sh [action] [n] [option]

• action: create or add
• create: to create a new network with n peers
• add: to add n peers to the existing network
• n: number of peers to be created or added
• option: CouchDB option
• cdb if CouchDB is needed
• blank if no CouchDB

Note that the IP addresses in the two json files need to be changed to the same address where the network is.

##Examples

###Without CouchDB:

####example 1: create one cop, one orderer, and 2 peers (vp0 and vp1)

./driver.sh create 2

####example 2: create one cop, one orderer, and 4 peers (vp0, vp1, vp2, and vp3)

./driver.sh create 4

####example 3: add 2 peers (vp2, vp3) to the existing network with vp0 and vp1

./driver.sh add 2

####example 4: add 8 peers (vp2, ..., vp9) to the existing network with vp0 and vp1

./driver.sh add 8

###with CouchDB:

####example 5: create one cop, one orderer, and three peers (vp0, vp1 and vp2) with CouchDB

./driver.sh create 3 cdb

####example 6: add 5 peers (vp3, .., vp7) to the existing network with three peers (vp0, vp1 and vp2) with CouchDB

./driver.sh add 5 cdb

#Transactions Execution

###setup

1. git clone https://github.com/hyperledger/fabric-sdk-node.git
2. follow the setup instructions in the fabric-sd-node
3. git reset --hard a7f57baca0ece7111f74f7b9174c2083df7cda86
4. Download perf.js to $GOPATH/src/github.com/hyperledger/fabric-sdk-node/test/unit.

###usage

node perf.js <transaction> <number>
   - transaction: the transaction type (deploy, invoke or query)
   - number: the number of the specified transaction to be executed for invoke and query

#####deploy

node perf.js deploy

The above command will deploy chaincode with initial value a=0 and b=0.

#####invoke

node perf.js invoke 3

The above command will move 1 unit from a to b three (3) times.

#####query

node perf.js query 3

The above command will query b three (3) times. The last query result is printed.