DISTRIBUTED Yahoo! Cloud System Benchmark (YCSB)

Requirements

ssh client
check that the command line utility "expect" is installed on the machines, that will run your cluster

Getting Started

the original readme is renamed as
```
 original-README.md
```

Set the USER variable of the global.sh

 you will need to set the USER variable to allow ssh access on to the remote machines
 you will need to set up your public/private key pair so that ssh will not prompt for a password

Installing DISTRIBUTED YCSB run

 ./install.sh

 this will install the YCSB system on all machines required to run the performance tests
 default to localhost

Run YCSB on DISTRIBUTED machines.

 ./go.sh [outputDirectory]

 Running the `go.sh` script with an optional output directory will...

     for each type of DB/CLUSTER system listed in SYSTEMS variable of global.sh
         Create a cluster as defined by the variables in the CLUSTER VARIABLES section of global.sh
         Check that the cluster has formed correctly
         Run the original YCSB performance test as defined by the variables in the LOAD PRODUCER VARIABLES section of global.sh
     Produce a directory (default /report) containing the results of the run

Configure the CLUSTER VARIABLES section of global.sh

 Edit these variables in global.sh to control how the cluster is formed

 CLUSTER_MACHINES
     List of IP addresses that will run the cluster nodes

 CLUSTER_JVMS_PER_BOX
     each of the machines can run multiple "cluster" JVM's

 CLUSTER_NODES_PER_JVM=1
     each of the "cluster" JVM's can run multiple Nodes

Configure the LOAD PRODUCER VARIABLES section of global.sh

 Edit these variables in global.sh to control how much load will be targeted at the cluster

 LOAD_MACHINES
     List of IP addresses that will run the load producing DbClients of YCSB

 DB_CLIENTS_PER_BOX
     each machine can run multiple DbClients

 NODES_PER_DB_CLIENT
     number of nodes to be started in each DBClient

 CLIENT_NODE
     boolean value showing type of nodes to be started in each DBClient, client or cluster member

 INSERTS_PER_DB_CLIENT
     How much load each DBClient will produce in the "LOAD" phase of YCSB

 OPERATIONS_PER_DB_CLIENT=1000
     How much load each DBClient will produce in the "TRANSACTION" phase of the YCSB system

 WORKLOAD
     the name of the YCSB workload file that YCSB will use to control the "TRANSACTION" phase
     see original-README.md for more information about the workload file

Adding a new system

see original-README.md for how to implement a YCSB DB client interface.
DISTRIBUTED YCSB extra requirements

requires that your target jar will be runnable. and define a static void main which will be passed 2 command line arguments:
```
     1) the number of cluster nodes to start in this JVM
     2) the target cluster size, the final size of the cluster that will be formed
```
you are required to check the size of the cluster that forms and on equaling the target size print to std out
```
     ===>>CLUSTERED<<===
```
this way DISTRIBUTED YCSB can coordinate the YCSB load and run phases

Danny-Hazelcast/YCSB

DISTRIBUTED Yahoo! Cloud System Benchmark (YCSB)

Requirements

Getting Started

Adding a new system