netflix / ndbench Goto Github PK

Netflix Data Store Benchmark

License: Apache License 2.0

Java 40.17% HTML 59.75% JavaScript 0.09%

ndbench's Introduction

NdBench

Netflix Data Benchmark (NDBench) is a pluggable cloud-enabled benchmarking tool that can be used across any data store system. NDBench provides plugin support for several data stores and can be extended to other client APIs.

Client APIs

Apache Cassandra (Thrift and CQL)
Redis
Elasticsearch
Elassandra
Amazon DynamoDB
Apache Geode
JanusGraph
Netflix Dynomite (Redis API)

Features

Dynamically change the benchmark configurations while the test is running, hence perform tests along with our production microservices.
Be able to integrate with platform cloud services such as dynamic configurations, discovery, metrics, etc.
Run for an infinite duration in order to introduce failure scenarios and test long running maintenances such as database repairs.
Provide pluggable patterns and loads.
Support different client APIs.
Deploy, manage and monitor multiple instances from a single entry point.
Support multiple cloud platform due to integration with Cloud Foundry

Details about the features can be found in the Wiki

Workflow

The stable version of NdBench is the master branch.

For questions or contributions, please consider reading CONTRIBUTING.md.

Installation requirements

Java 8 recommended. Java 11+ is not supported.

Build

NdBench comes with a Gradle wrapper

./gradlew build

The gradlew script will pull down all necessary gradle components/infrastructure automatically, then run the build.

NdBench provides several default implementations ( NdBenchConfiguration, LocalClusterDiscovery etc). You can use these or choose to create your own. NdBench currently works on AWS or your local environment. We are open to contributions to support other platforms as well.

How to

The first step before building ndbench is to configure the interfaces related to your environment in the InjectedWebListener. Checkout the Wiki for further explanation on what interfaces to bind based on your environment.

Build ndbench
Set up Auto-Scale Group (ASG) and spin up instances
Deploy ndbench-web.war in your container

Deploy to Cloud Platforms

DISCOVERY_ENV environment variable is responsible to bind the proper Cluster Discovery. Currently AWS, CF and Local are supported. Hence set the environment variable DISCOVERY_ENV based on the environment you are deploying the app. For Amazon Web Services use AWS, for Cloud Foundry use CF, and for local deployments any other name. For Cloud Foundry, build and upload the ndbench war to CF using cf push.

Run

./gradlew appRun

Configuration

You can provide properties by using ndbench{version}.jar in your web container and then implementing IConfiguration Interface. More details on the how the configuration can be found in the Wiki.

Help

Need some help with either getting up and going or some problems with the code?

Submit a Github issue
Chat with us on

License

Licensed under the Apache License, Version 2.0: http://www.apache.org/licenses/LICENSE-2.0

ndbench's People

Contributors

Stargazers

Watchers

Forkers

rspieldenner ewebconsult gitter-badger diegopacheco oranie mshuler jjcorrea sjanulonoks tharanga-abeyseela mharris021 yantra lazywizar occho pulkit-chandra marrary2 vinaykumarchella sergeydobrodey sureshpendap younjinjeong shirleycohen alexxnica agent001 mmartell zerolugithub vigneshklncit kunalkundaje kryndex happyprg arunagrawal84 buildlackey sghill siculars xdslab sagarl shreyas-srinivas pencal mbrukman vnalamati52 archer-christ ellerbrock cloud-architecture wpc tulumvinh mreddy8182 jolynch gnumoreno sunilpentapati phanirajl glommer ilovejs agoetz00 yut148 amcp balajivenki amitgb14 rayhassan tonyywwong askagirl voyager-innovations dslizardo pluradj samehmgd heapxlabs emaxerrno sumanth-pasupuleti mdaxini ajaysi prnkmr jasobrown ghanima tdanick nchandrappa fakenetflix tomzhang souzaguilherme mgobec cnxtech katoomba-demo skondla srinidhis05 razorpay mattforshaw androidappsss vaibhavkhurana2018 arita37 manubalasree sarangs yuraymondl nikileshsa jrwest periyatv-aws programmatix adam-netflix knifeymoloko yigui2 test-mass-forker-org-1 kmccarp macmullensantiago parthsantpurkar monika3002

ndbench's Issues

Rate limit

Hello, is there any support (or future plans) for rate limit (throttling) in ndbench?

use Logger.info in NdBenchDriver when printing n threads & keys

currently this uses a System.out.println

use 4 spaces instead of tabs everywhere

so that code diffs look the same in the side and the browser

Factor out constant for 5 second timeout in stopOperation()

https://github.com/Netflix/ndbench/blob/master/ndbench-core/src/main/java/com/netflix/ndbench/core/NdBenchDriver.java#L317

meta10?

ndbench/ndbench-core/src/main/java/com/netflix/ndbench/core/discovery/AWSLocalClusterDiscovery.java

Line 32 in 1bf0af6

String urlLocal = "http://169.254.169.254/latest/meta10-data/local-hostname";

Are you sure that's correct?

ubuntu@ip-172-31-28-231:~$ curl http://169.254.169.254/latest/meta10-data/local-hostname
> <?xml version="1.0" encoding="iso-8859-1"?>
> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
>          "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
>  <head>
>   <title>404 - Not Found</title>
>  </head>
>  <body>
>   <h1>404 - Not Found</h1>
>  </body>
> </html>


ubuntu@ip-172-31-28-231:~$ curl http://169.254.169.254/latest/meta-data/local-hostname

ip-172-31-28-231.us-west-2.compute.internal

Wiki doesn't go anywhere & there's no Wiki link

"Details about the features can be found in the Wiki"

The "Wiki" text, when clicked, doesn't do anything but reload the page.

Add appRun in Travis test

We currently test NDBench by deploying in a compute instance. However, we rarely test if it works with appRun. The latter is the recommended way for our OSS users. Since we wrap the ndbench-web with our internal tomcat configuration we probably need to add some unit testing to make sure that appRun works and at least some REST calls are successful.

Add a CLI with arguments for each client for one-off usage

Implement CLI argument lists for each of the following plugins:

Unable to compile ndbench

Hi,

I'm trying to compile ndbench and am getting the following error:

$ ./gradlew build

> Configure project :
Inferred project: ndbench, version: 0.3.4-SNAPSHOT

Publication nebula not found in project :.
Publication named 'nebula' does not exist for project ':' in task ':artifactoryPublish'.

> Task :ndbench-core:compileJava
error: Bad service configuration file, or exception thrown while constructing Processor object: javax.annotation.processing.Processor: Provider org.antlr.v4.runtime.misc.RuleDependencyProcessor not found


FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':ndbench-core:compileJava'.
> Compilation failed; see the compiler error output for details.

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

* Get more help at https://help.gradle.org

BUILD FAILED in 0s
8 actionable tasks: 1 executed, 7 up-to-date

If it makes any difference, this is on Mac OS and java 1.8.0_131.

Thanks for any help!

Implement DynamoDB bulk operations

Implement the following using Batch*Item APIs:

bulkWrite with BatchWriteItem
bulkRead with BatchGetItem

Where to configure cassandra hosts and credentials to run ndbench

Hi,

I tried a lot over the web to find a good getting started tutorial for ndbench to benchmark Cassandra but failed to find one. None of the posts available online walks us through testing cassandra in cloud environment. If you guys can guide me to any information on it, that would be of a great help.

If there is any configuration file which I need to use to give cluster details with credentials please point me to it.

Thanks in advance.

Question: Disabling Eureka

@ipapapa Looks like right after the comming #130 I see my local ndbench breaks due to Eureka dependency. While I resolved some of it using

eureka.validateInstanceId=false

with that the app runs. However I see these exceptions all the time

13:12:18,230 ERROR DiscoveryClient:972 - DiscoveryClient_UNKNOWN/10.101.11.44 - was unable to refresh its cache! status = There is no known eureka server; cluster server list is empty com.netflix.discovery.shared.transport.TransportException: There is no known eureka server; cluster server list is empty at com.netflix.discovery.shared.transport.decorator.RetryableEurekaHttpClient.execute(RetryableEurekaHttpClient.java:107) at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.getApplications(EurekaHttpClientDecorator.java:134) at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator$6.execute(EurekaHttpClientDecorator.java:137) at com.netflix.discovery.shared.transport.decorator.SessionedEurekaHttpClient.execute(SessionedEurekaHttpClient.java:77) at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.getApplications(EurekaHttpClientDecorator.java:134) at com.netflix.discovery.DiscoveryClient.getAndStoreFullRegistry(DiscoveryClient.java:1051) at com.netflix.discovery.DiscoveryClient.fetchRegistry(DiscoveryClient.java:965) at com.netflix.discovery.DiscoveryClient.refreshRegistry(DiscoveryClient.java:1471) at com.netflix.discovery.DiscoveryClient$CacheRefreshThread.run(DiscoveryClient.java:1438) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run$$$capture(FutureTask.java:266) at java.util.concurrent.FutureTask.run(FutureTask.java) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) 13:12:18,232 ERROR DiscoveryClient:860 - DiscoveryClient_UNKNOWN/10.101.11.44 - was unable to send heartbeat! com.netflix.discovery.shared.transport.TransportException: There is no known eureka server; cluster server list is empty at com.netflix.discovery.shared.transport.decorator.RetryableEurekaHttpClient.execute(RetryableEurekaHttpClient.java:107) at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.sendHeartBeat(EurekaHttpClientDecorator.java:89) at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator$3.execute(EurekaHttpClientDecorator.java:92) at com.netflix.discovery.shared.transport.decorator.SessionedEurekaHttpClient.execute(SessionedEurekaHttpClient.java:77) at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.sendHeartBeat(EurekaHttpClientDecorator.java:89) at com.netflix.discovery.DiscoveryClient.renew(DiscoveryClient.java:846) at com.netflix.discovery.DiscoveryClient$HeartbeatThread.run(DiscoveryClient.java:1399) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run$$$capture(FutureTask.java:266) at java.util.concurrent.FutureTask.run(FutureTask.java) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745)

Is there any way to disable Eureka dependency or suppress these with an eureka config?

Why is an ASG needed for running ndbench?

How will the instance booted by the autoscale group automatically join the cluster? The AWSLocalClusterDiscovery seems to only get the host machine's IP. And If we don't create an AMI with ndbench already installed then what is the point of having an ASG?

Have I misunderstood something ? Please clarify.

Thanks

Does ndbench directly injection workloads to data store systems? without considering different microservices?

different microservices hava different data amount ,data type and data size, is it necessary to consider these differences ?

Depend only on AWS SDKs used (DynamoDB) and not all

takes a long time to build because gradle will download all versions.

Coordinated Omission in operation latency measurement

Looking at how latency is reported e.g.:
https://github.com/Netflix/ndbench/blob/master/ndbench-core/src/main/java/com/netflix/ndbench/core/operations/ReadOperation.java#L43

            Long startTime = System.nanoTime();
            String value = client.readSingle(key);
            monitor.recordReadLatency((System.nanoTime() - startTime)/1000);

The above implies the operation is synchronous and that the harness has no notion of schedule (we don't know when we intend to start measurement). This generally leads to coordinate omission. The fix is usually to add some notion of schedule mapping each operation to it's intended start time.
This is a common issue in load generators, see following blog posts(which I wrote) on the issue, it's impact and resolution in YCSB and Cassandra Stress:
http://psy-lob-saw.blogspot.com/2015/03/fixing-ycsb-coordinated-omission.html
http://psy-lob-saw.blogspot.com/2016/07/fixing-co-in-cstress.html

manifests.yml lists 0.4.0 release but that release does not exist on github

While attempting to push and run this app in a CF environment, we got an error stating that
ndbench-web-0.4.0-SNAPSHOT.war didn't exist and once checked we noted that ndbench-web-0.3.11-SNAPSHOT.war had been downloaded. It appears that the 0.4.0 release is not available even though it is referred to in the manifests.yml.

thread refuses to die prevents clean shutdown of app.

When shutting down the ndbench application we sometimes get a stack trace that looks like this:

Nov 27, 2017 3:10:18 PM org.apache.catalina.loader.WebappClassLoaderBase clearReferencesThreads
WARNING: The web application [ROOT] appears to have started a thread named [pool-1-thread-1] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
sun.misc.Unsafe.park(Native Method)
java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)
java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
java.lang.Thread.run(Thread.java:748)
Nov 27, 2017 3:10:18 PM org.apache.coyote.AbstractProtocol stop
INFO: Stopping ProtocolHandler ["http-nio-8080"]
Nov 27, 2017 3:10:18 PM org.apache.coyote.AbstractProtocol destroy
INFO: Destroying ProtocolHandler ["http-nio-8080"]

This hangs things up when doing things like integration tests that bring up the .war in the context of integration tests via gretty plugin.

It would be cleaner if we figured out how to gracefully get this thread to stop.

as a work around I am going to have a configurable option to force stop all threads (I discussed with Ionnais). This will take effect in existing contextListener: InjectedWebListener.

fix log statement: stop thread, not process when no more keys left

https://github.com/Netflix/ndbench/blob/master/ndbench-core/src/main/java/com/netflix/ndbench/core/NdBenchDriver.java#L261

Wiki is missing

README.md says "Details about the features can be found in the Wiki" but that URL simply redirects back to https://github.com/Netflix/ndbench/ and doesn't display a Wiki. Clicking the Wiki link in Github (immediately below the Netflix/ndbench line in the Github UI) has the same effect.

Backfill function throughput is low.

For some odd reason the throughput for the backfill function is much lower then for writes. I'm using the same concurrency.

Test was conducted with the following setup:

Scylla Cluster - 3 nodes i3.8xlarge
NDBench cluster - 5 nodes m4.10xlarge
NDBench cluster deployed using ansible https://github.com/gnumoreno/NdbenchAWS

application.properties has following:
ndbench.config.numKeys=250000000
ndbench.config.writeRateLimit=400000
ndbench.config.readRateLimit=500000
ndbench.config.numValues=50000
ndbench.config.dataSize=1024
ndbench.config.numWriters=1000
ndbench.config.numReaders=1000
ndbench.config.backfillStartKey=1
ndbench.config.numBackfill=1000
ndbench.config.cass.host=172.31.31.228
ndbench.config.cass.keyspace=ndbench
ndbench.config.cass.cfname=scylla
ndbench.config.cass.cluster=NDBench
ndbench.config.cass.colsPerRow=6
ndbench.config.cass.writeConsistencyLevel=ONE
ndbench.config.cass.readConsistencyLevel=ONE
ndbench.config.cass.connections=32

I noticed that the backfill function is very verbose printing each key that is inserted to stdout or (in this case) to the catalina.out file while the writeSingle function just prints the summary with WPS. I wonder if this is the reason why the backfill is able to reach just 40k wps thorughput while writes are over 100k wps.

[DynamoDB] Compose DynamoDB table metrics and ndbench metrics in CloudWatch dashboard

Depends on #116

Can't get more than ~2.5K RPS on Cassandra

@ipapapa @vinaykumarchella

I'm stressing out Cassandra 2.1.9 using Netflix NDBench running on AWS.

Hardware: m4.4xlarge - 64GB of RAM and 16 vCPU

There are 3 boxes with this hardware. 1) NDbench 2) Cass node A 2) Cass node B.

I can't get higher RPS than ~2.5k for R/w.

Given this hardware should I be able to get better RPS with single NDBench machine?

Stress Test Information

NDBench Parameters

NDBench Results

NDBench Logs

NDBench Stats

Cass Logs

Cass Stats

Cheers,
Diego Pacheco

Supporting writeBulk and readBulk

I am thinking about adding writeBulk and readBulk operations to ndbench. My thought is to add the bulkSize parameter in startWrites and startReads and default it to 1, which falls back to writeSingle and readSingle. Any comments?

failing to build master

Hello, I am having a problem building ndbench on a machine that has never built it. The gradlew build is throwing errors. Perhaps this is a documentation error or a configuration error on my part.

java version "1.8.0_162"
Java(TM) SE Runtime Environment (build 1.8.0_162-b12)
Java HotSpot(TM) 64-Bit Server VM (build 25.162-b12, mixed mode)

○ → git clone [email protected]:Netflix/ndbench.git

remote: Counting objects: 2936, done.
remote: Compressing objects: 100% (4/4), done.
remote: Total 2936 (delta 3), reused 1 (delta 1), pack-reused 2931
Receiving objects: 100% (2936/2936), 1.15 MiB | 1.90 MiB/s, done.
Resolving deltas: 100% (809/809), done.

○ → cd ndbench

○ → ls

LICENSE                    buildViaTravis.sh          gradlew                    ndbench-api                ndbench-dyno-plugins       ndbench-janusgraph-plugins settings.gradle
OSSMETADATA                codequality                gradlew.bat                ndbench-cass-plugins       ndbench-es-plugins         ndbench-proxy.js
README.md                  dynomite.yml               img                        ndbench-core               ndbench-evcache-plugins    ndbench-sample-plugins

○ → ./gradlew clean build

> Configure project :
Inferred project: ndbench, version: 0.4.0-SNAPSHOT

Download http://dax-sdk.s3-website-us-west-2.amazonaws.com/java/DaxJavaClient-latest.jar
Publication nebula not found in project :.
Publication named 'nebula' does not exist for project ':' in task ':artifactoryPublish'.

> Task :ndbench-core:compileJava
Note: Some input files use unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.


FAILURE: Build failed with an exception.

* What went wrong:
Could not resolve all files for configuration ':ndbench-dynamodb-plugins:compileClasspath'.
> Could not find :DaxJavaClient-latest:.
  Searched in the following locations:
      file:/Users/pivotal/workspace/ndbench/ndbench-dynamodb-plugins/build/DaxJavaClient-latest.jar
  Required by:
      project :ndbench-dynamodb-plugins

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 6s
24 actionable tasks: 23 executed, 1 up-to-date

Instead just trying a build....

○ → ./gradlew build

> Configure project :
Inferred project: ndbench, version: 0.4.0-SNAPSHOT

Download http://dax-sdk.s3-website-us-west-2.amazonaws.com/java/DaxJavaClient-latest.jar
Publication nebula not found in project :.
Publication named 'nebula' does not exist for project ':' in task ':artifactoryPublish'.

> Task :ndbench-evcache-plugins:compileJava FAILED
/<home>/ndbench/ndbench-evcache-plugins/src/main/java/com/netflix/ndbench/plugin/evcache/EVCacheTestPlugin.java:36: error: EVCacheTestPlugin is not abstract and does not override abstract method writeBulk(List<String>) in NdBenchClient
public class EVCacheTestPlugin implements NdBenchClient {
       ^
1 error


FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':ndbench-evcache-plugins:compileJava'.
> Compilation failed; see the compiler error output for details.

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 9s
21 actionable tasks: 10 executed, 11 up-to-date

Rename RandomStringKeyGenrator to RandomStringKeyGenerator

spelling fix

Migration of ElasticSearch plugin

We need to add the ES plugin in the OSS.

Fix NPE after catching Service/Client exception in DynamoDB

reads
writes

Add more logging to init() method of KeyGenerator (beginning, end)

Unable to initialize DynamoDBKeyValue Client because of "Client not found"

I built the latest commit on the master branch with ./gradlew build and then started the app with DISCOVERY_ENV=AWS ./gradlew appRun.
on GET http://localhost:8080/REST?ndbench/driver/init/DynamoDBKeyValue
I get an error:
{"isSuccess":false,"message":"Client initialization failed!"}

Looking at the tomcat application log, I find the stack trace.

10:11:39,131 ERROR NdBenchResource:208 - Error initializing the client - DynamoDBKeyValue
java.lang.RuntimeException: Client not found: DynamoDBKeyValue
        at com.netflix.ndbench.core.NdBenchClientFactory.getClient(NdBenchClientFactory.java:42)
        at com.netflix.ndbench.core.resources.NdBenchResource.init(NdBenchResource.java:203)
        at java.lang.Thread.run(Thread.java:748)

Isn't guice supposed to be doing class path scanning to find all implementations of NdBenchClient?

Add configuration options necessary to tune DynamoDB client for load

Need the following configuration parameters additionally:

compressing
region
endpoint
maxConnections

Add them to https://github.com/Netflix/ndbench/blob/master/ndbench-dynamodb-plugins/src/main/java/com/netflix/ndbench/plugin/dynamodb/configs/DynamoDBConfigs.java#L33

Create NdBenchMonitor implementation to publish to CloudWatch

ndbench fails to build when it is submoduled

ndbench builds successfully when it is a top level git repo but it fails when it is submoduled into another git repo. It appear's that the nebula.netflixoss plugin looks for a .git directory at the root of the project.

Not sure what if anything you all would like to do about it. It was confusing for us at first but we got it to build successfully by setting -Pgit.root=<root-dir>.

Setting -Pgit.root isn't bad for us, but it took some time to understand the cause of the failure, and others might experience this pain. It would be nice if the build script wasn't so tightly coupled to git or if the plugin handled submodules gracefully. If there was an option to override the git integration that would also be a fine solution.

$ ./gradlew build --stacktrace
Git repository not found at <my-repo>/<some>/<path>/ndbench -- nebula-release tasks will not be available. Use the git.root Gradle property to specify a different directory.

FAILURE: Build failed with an exception.

* Where:
Build file '<my-repo>/<some>/<path>/ndbench/build.gradle' line: 11

* What went wrong:
An exception occurred applying plugin request [id: 'nebula.netflixoss', version: '3.6.0']
> Failed to apply plugin [id 'nebula.netflixoss']
   > Cannot set property 'defaultVersionStrategy' on null object

* Try:
Run with --info or --debug option to get more log output.

* Exception is:
org.gradle.api.plugins.InvalidPluginException: An exception occurred applying plugin request [id: 'nebula.netflixoss', version: '3.6.0']
        at org.gradle.plugin.use.internal.DefaultPluginRequestApplicator.applyPlugin(DefaultPluginRequestApplicator.java:224)
        at org.gradle.plugin.use.internal.DefaultPluginRequestApplicator.applyPlugins(DefaultPluginRequestApplicator.java:171)
        at org.gradle.configuration.DefaultScriptPluginFactory$ScriptPluginImpl.apply(DefaultScriptPluginFactory.java:156)
        at org.gradle.configuration.project.BuildScriptProcessor.execute(BuildScriptProcessor.java:38)
        at org.gradle.configuration.project.BuildScriptProcessor.execute(BuildScriptProcessor.java:25)
        at org.gradle.configuration.project.ConfigureActionsProjectEvaluator.evaluate(ConfigureActionsProjectEvaluator.java:34)
        at org.gradle.configuration.project.LifecycleProjectEvaluator.evaluate(LifecycleProjectEvaluator.java:55)
        at org.gradle.api.internal.project.DefaultProject.evaluate(DefaultProject.java:573)
        at org.gradle.api.internal.project.DefaultProject.evaluate(DefaultProject.java:125)
        at org.gradle.execution.TaskPathProjectEvaluator.configureHierarchy(TaskPathProjectEvaluator.java:42)
        at org.gradle.configuration.DefaultBuildConfigurer.configure(DefaultBuildConfigurer.java:38)
        at org.gradle.initialization.DefaultGradleLauncher$2.run(DefaultGradleLauncher.java:151)
        at org.gradle.internal.Factories$1.create(Factories.java:22)
        at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:91)
        at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:53)
        at org.gradle.initialization.DefaultGradleLauncher.doBuildStages(DefaultGradleLauncher.java:148)
        at org.gradle.initialization.DefaultGradleLauncher.access$200(DefaultGradleLauncher.java:33)
        at org.gradle.initialization.DefaultGradleLauncher$1.create(DefaultGradleLauncher.java:112)
        at org.gradle.initialization.DefaultGradleLauncher$1.create(DefaultGradleLauncher.java:106)
        at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:91)
        at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:63)
        at org.gradle.initialization.DefaultGradleLauncher.doBuild(DefaultGradleLauncher.java:106)
        at org.gradle.initialization.DefaultGradleLauncher.run(DefaultGradleLauncher.java:92)
        at org.gradle.launcher.exec.GradleBuildController.run(GradleBuildController.java:66)
        at org.gradle.tooling.internal.provider.ExecuteBuildActionRunner.run(ExecuteBuildActionRunner.java:28)
        at org.gradle.launcher.exec.ChainingBuildActionRunner.run(ChainingBuildActionRunner.java:35)
        at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:41)
        at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:26)
        at org.gradle.tooling.internal.provider.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:79)
        at org.gradle.tooling.internal.provider.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:51)
        at org.gradle.launcher.daemon.server.exec.ExecuteBuild.doBuild(ExecuteBuild.java:59)
        at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
        at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
        at org.gradle.launcher.daemon.server.exec.WatchForDisconnection.execute(WatchForDisconnection.java:47)
        at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
        at org.gradle.launcher.daemon.server.exec.ResetDeprecationLogger.execute(ResetDeprecationLogger.java:26)
        at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
        at org.gradle.launcher.daemon.server.exec.RequestStopIfSingleUsedDaemon.execute(RequestStopIfSingleUsedDaemon.java:34)
        at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
        at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:74)
        at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:72)
        at org.gradle.util.Swapper.swap(Swapper.java:38)
        at org.gradle.launcher.daemon.server.exec.ForwardClientInput.execute(ForwardClientInput.java:72)
        at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
        at org.gradle.launcher.daemon.server.exec.LogAndCheckHealth.execute(LogAndCheckHealth.java:55)
        at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
        at org.gradle.launcher.daemon.server.exec.LogToClient.doBuild(LogToClient.java:60)
        at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
        at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
        at org.gradle.launcher.daemon.server.exec.EstablishBuildEnvironment.doBuild(EstablishBuildEnvironment.java:72)
        at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
        at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
        at org.gradle.launcher.daemon.server.exec.HintGCAfterBuild.execute(HintGCAfterBuild.java:44)
        at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
        at org.gradle.launcher.daemon.server.exec.StartBuildOrRespondWithBusy$1.run(StartBuildOrRespondWithBusy.java:50)
        at org.gradle.launcher.daemon.server.DaemonStateCoordinator$1.run(DaemonStateCoordinator.java:293)
        at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:54)
        at org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:40)
Caused by: org.gradle.api.internal.plugins.PluginApplicationException: Failed to apply plugin [id 'nebula.netflixoss']
        at org.gradle.api.internal.plugins.DefaultPluginManager.doApply(DefaultPluginManager.java:155)
        at org.gradle.api.internal.plugins.DefaultPluginManager.apply(DefaultPluginManager.java:112)
        at org.gradle.plugin.use.internal.DefaultPluginRequestApplicator$5.run(DefaultPluginRequestApplicator.java:174)
        at org.gradle.plugin.use.internal.DefaultPluginRequestApplicator.applyPlugin(DefaultPluginRequestApplicator.java:212)
        ... 57 more
Caused by: java.lang.NullPointerException: Cannot set property 'defaultVersionStrategy' on null object
        at nebula.plugin.netflixossproject.NetflixOssProjectPlugin$_apply_closure1.doCall(NetflixOssProjectPlugin.groovy:55)
        at nebula.plugin.netflixossproject.NetflixOssProjectPlugin.apply(NetflixOssProjectPlugin.groovy:54)
        at nebula.plugin.netflixossproject.NetflixOssProjectPlugin.apply(NetflixOssProjectPlugin.groovy)
        at org.gradle.api.internal.plugins.ImperativeOnlyPluginApplicator.applyImperative(ImperativeOnlyPluginApplicator.java:35)
        at org.gradle.api.internal.plugins.RuleBasedPluginApplicator.applyImperative(RuleBasedPluginApplicator.java:43)
        at org.gradle.api.internal.plugins.DefaultPluginManager.doApply(DefaultPluginManager.java:139)
        ... 60 more


BUILD FAILED

Total time: 0.835 secs

add .gitignore files

ndbench-cass-plugins/out/
ndbench-core/out/

Cassandra Plugins: LOCAL_QUORUM is not being respected in batch statement

When using batch statements, providing CL at individual statement level is not being respected, hence it needs to be provided in the batch statement.

use logger and not System.out for thread statement, remove pre/post newlines

https://github.com/Netflix/ndbench/blob/master/ndbench-core/src/main/java/com/netflix/ndbench/core/NdBenchDriver.java#L229

Publish average read/write latency to logger in addition to TPS

https://github.com/Netflix/ndbench/blob/master/ndbench-core/src/main/java/com/netflix/ndbench/core/NdBenchDriver.java#L509

AWS failure to load modules

New GuiceModule that an environment is loaded based on properties has an issue with AWS deployments #32

Docker image for NdBench

It will a good starting point to have docker image for NdBench so that it is easy to get it up and running in any cloud environment

Condition write TPS below target warning on writesEnabled in config

https://github.com/Netflix/ndbench/blob/master/ndbench-core/src/main/java/com/netflix/ndbench/core/NdBenchDriver.java#L519

[DynamoDB] Enable application autoscaling for DynamoDB when using programmatic tables

so that tables can adjust their own provisioning. This should make the auto-tune feature of ndbench work for DynamoDB.

Use functional notation for runnables/callables/threads

style issue / java8

Use a set to make sure keys in batch are unique

https://github.com/Netflix/ndbench/blob/master/ndbench-core/src/main/java/com/netflix/ndbench/core/NdBenchDriver.java#L242

Refactor init() method in KeyGenerators for code reuse

[DynamoDB] Cannot select "Connect Driver" for DynamoDBKeyValue

I cannot seem to get past step 2. Connect a Driver. Even when I select DynamoDBKeyValue, I cant press the play button on any Load Test in step 3.

Execution failed for task ':ndbench-dyno-plugins:compileJava'. > Compilation failed

Please let me know if more information is needed.

On a CentOS 7 machine with java 8. I'm getting the following error after running:
./gradlew clean build

> Task :ndbench-dyno-plugins:compileJava 
~/ndbench/ndbench-dyno-plugins/src/main/java/com/netflix/ndbench/plugin/dyno/DynoJedis.java:62: error: <anonymous com.netflix.ndbench.plugin.dyno.DynoJedis$1> is not abstract and does not override abstract method getHosts() in HostSupplier
        HostSupplier hSupplier = new HostSupplier() {
                                                    ^
~/ndbench/ndbench-dyno-plugins/src/main/java/com/netflix/ndbench/plugin/dyno/DynoJedis.java:65: error: getHosts() in <anonymous com.netflix.ndbench.plugin.dyno.DynoJedis$1> cannot implement getHosts() in HostSupplier
            public Collection<Host> getHosts() {
                                    ^
  return type Collection<Host> is not compatible with List<Host>
~/ndbench/ndbench-dyno-plugins/src/main/java/com/netflix/ndbench/plugin/dyno/DynoJedis.java:64: error: method does not override or implement a method from a supertype
            @Override
            ^
~/ndbench/ndbench-dyno-plugins/src/main/java/com/netflix/ndbench/plugin/dyno/DynoJedisExtFunc.java:170: error: <anonymous com.netflix.ndbench.plugin.dyno.DynoJedisExtFunc$1> is not abstract and does not override abstract method getHosts() in HostSupplier
        HostSupplier hSupplier = new HostSupplier() {
                                                    ^
~/ndbench/ndbench-dyno-plugins/src/main/java/com/netflix/ndbench/plugin/dyno/DynoJedisExtFunc.java:173: error: getHosts() in <anonymous com.netflix.ndbench.plugin.dyno.DynoJedisExtFunc$1> cannot implement getHosts() in HostSupplier
            public Collection<Host> getHosts() {
                                    ^
  return type Collection<Host> is not compatible with List<Host>
~/ndbench/ndbench-dyno-plugins/src/main/java/com/netflix/ndbench/plugin/dyno/DynoJedisExtFunc.java:172: error: method does not override or implement a method from a supertype
            @Override
            ^
~/ndbench/ndbench-dyno-plugins/src/main/java/com/netflix/ndbench/plugin/dyno/DynoJedisGetSetPipeline.java:77: error: <anonymous com.netflix.ndbench.plugin.dyno.DynoJedisGetSetPipeline$1> is not abstract and does not override abstract method getHosts() in HostSupplier
        HostSupplier hSupplier = new HostSupplier() {
                                                    ^
~/ndbench/ndbench-dyno-plugins/src/main/java/com/netflix/ndbench/plugin/dyno/DynoJedisGetSetPipeline.java:80: error: getHosts() in <anonymous com.netflix.ndbench.plugin.dyno.DynoJedisGetSetPipeline$1> cannot implement getHosts() in HostSupplier
            public Collection<Host> getHosts() {
                                    ^
  return type Collection<Host> is not compatible with List<Host>
~/ndbench/ndbench-dyno-plugins/src/main/java/com/netflix/ndbench/plugin/dyno/DynoJedisGetSetPipeline.java:79: error: method does not override or implement a method from a supertype
            @Override
            ^
~/ndbench/ndbench-dyno-plugins/src/main/java/com/netflix/ndbench/plugin/dyno/DynoJedisHashPipeline.java:64: error: <anonymous com.netflix.ndbench.plugin.dyno.DynoJedisHashPipeline$1> is not abstract and does not override abstract method getHosts() in HostSupplier
        HostSupplier hSupplier = new HostSupplier() {
                                                    ^
~/ndbench/ndbench-dyno-plugins/src/main/java/com/netflix/ndbench/plugin/dyno/DynoJedisHashPipeline.java:67: error: getHosts() in <anonymous com.netflix.ndbench.plugin.dyno.DynoJedisHashPipeline$1> cannot implement getHosts() in HostSupplier
            public Collection<Host> getHosts() {
                                    ^
  return type Collection<Host> is not compatible with List<Host>
~/ndbench/ndbench-dyno-plugins/src/main/java/com/netflix/ndbench/plugin/dyno/DynoJedisHashPipeline.java:66: error: method does not override or implement a method from a supertype
            @Override
            ^
~/ndbench/ndbench-dyno-plugins/src/main/java/com/netflix/ndbench/plugin/local/dynomite/proxy/LocalDynomiteProxyPlugin.java:68: error: <anonymous com.netflix.ndbench.plugin.local.dynomite.proxy.LocalDynomiteProxyPlugin$1> is not abstract and does not override abstract method getHosts() in HostSupplier
        HostSupplier hSupplier = new HostSupplier() {
                                                    ^
~/ndbench/ndbench-dyno-plugins/src/main/java/com/netflix/ndbench/plugin/local/dynomite/proxy/LocalDynomiteProxyPlugin.java:71: error: getHosts() in <anonymous com.netflix.ndbench.plugin.local.dynomite.proxy.LocalDynomiteProxyPlugin$1> cannot implement getHosts() in HostSupplier
            public Collection<Host> getHosts() {
                                    ^
  return type Collection<Host> is not compatible with List<Host>
~/ndbench/ndbench-dyno-plugins/src/main/java/com/netflix/ndbench/plugin/local/dynomite/proxy/LocalDynomiteProxyPlugin.java:70: error: method does not override or implement a method from a supertype
            @Override
            ^
~/ndbench/ndbench-dyno-plugins/src/main/java/com/netflix/ndbench/plugin/local/dynomite/proxy/LocalHttpEndpointBasedTokenMapSupplier.java:23: error: no suitable constructor found for HttpEndpointBasedTokenMapSupplier(String,int,int)
                super("http://{hostname}:8081/REST/v1/admin/cluster_describe", 8081, dynomitePort);
                ^
    constructor HttpEndpointBasedTokenMapSupplier.HttpEndpointBasedTokenMapSupplier() is not applicable
      (actual and formal argument lists differ in length)
    constructor HttpEndpointBasedTokenMapSupplier.HttpEndpointBasedTokenMapSupplier(int) is not applicable
      (actual and formal argument lists differ in length)
    constructor HttpEndpointBasedTokenMapSupplier.HttpEndpointBasedTokenMapSupplier(String,int) is not applicable
      (actual and formal argument lists differ in length)
16 errors


FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':ndbench-dyno-plugins:compileJava'.
> Compilation failed; see the compiler error output for details.

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

=================================================== Second try ===================================================

> Task :ndbench-dyno-plugins:compileJava FAILED
~/ndbench/ndbench-dyno-plugins/src/main/java/com/netflix/ndbench/plugin/dyno/DynoJedis.java:62: error: <anonymous com.netflix.ndbench.plugin.dyno.DynoJedis$1> is not abstract and does not override abstract method getHosts() in HostSupplier
        HostSupplier hSupplier = new HostSupplier() {
                                                    ^
~/ndbench/ndbench-dyno-plugins/src/main/java/com/netflix/ndbench/plugin/dyno/DynoJedis.java:65: error: getHosts() in <anonymous com.netflix.ndbench.plugin.dyno.DynoJedis$1> cannot implement getHosts() in HostSupplier
            public Collection<Host> getHosts() {
                                    ^
  return type Collection<Host> is not compatible with List<Host>
~/ndbench/ndbench-dyno-plugins/src/main/java/com/netflix/ndbench/plugin/dyno/DynoJedis.java:64: error: method does not override or implement a method from a supertype
            @Override
            ^
~/ndbench/ndbench-dyno-plugins/src/main/java/com/netflix/ndbench/plugin/dyno/DynoJedisExtFunc.java:170: error: <anonymous com.netflix.ndbench.plugin.dyno.DynoJedisExtFunc$1> is not abstract and does not override abstract method getHosts() in HostSupplier
        HostSupplier hSupplier = new HostSupplier() {
                                                    ^
~/ndbench/ndbench-dyno-plugins/src/main/java/com/netflix/ndbench/plugin/dyno/DynoJedisExtFunc.java:173: error: getHosts() in <anonymous com.netflix.ndbench.plugin.dyno.DynoJedisExtFunc$1> cannot implement getHosts() in HostSupplier
            public Collection<Host> getHosts() {
                                    ^
  return type Collection<Host> is not compatible with List<Host>
~/ndbench/ndbench-dyno-plugins/src/main/java/com/netflix/ndbench/plugin/dyno/DynoJedisExtFunc.java:172: error: method does not override or implement a method from a supertype
            @Override
            ^
~/ndbench/ndbench-dyno-plugins/src/main/java/com/netflix/ndbench/plugin/dyno/DynoJedisGetSetPipeline.java:77: error: <anonymous com.netflix.ndbench.plugin.dyno.DynoJedisGetSetPipeline$1> is not abstract and does not override abstract method getHosts() in HostSupplier
        HostSupplier hSupplier = new HostSupplier() {
                                                    ^
~/ndbench/ndbench-dyno-plugins/src/main/java/com/netflix/ndbench/plugin/dyno/DynoJedisGetSetPipeline.java:80: error: getHosts() in <anonymous com.netflix.ndbench.plugin.dyno.DynoJedisGetSetPipeline$1> cannot implement getHosts() in HostSupplier
            public Collection<Host> getHosts() {
                                    ^
  return type Collection<Host> is not compatible with List<Host>
~/ndbench/ndbench-dyno-plugins/src/main/java/com/netflix/ndbench/plugin/dyno/DynoJedisGetSetPipeline.java:79: error: method does not override or implement a method from a supertype
            @Override
            ^
~/ndbench/ndbench-dyno-plugins/src/main/java/com/netflix/ndbench/plugin/dyno/DynoJedisHashPipeline.java:64: error: <anonymous com.netflix.ndbench.plugin.dyno.DynoJedisHashPipeline$1> is not abstract and does not override abstract method getHosts() in HostSupplier
        HostSupplier hSupplier = new HostSupplier() {
                                                    ^
~/ndbench/ndbench-dyno-plugins/src/main/java/com/netflix/ndbench/plugin/dyno/DynoJedisHashPipeline.java:67: error: getHosts() in <anonymous com.netflix.ndbench.plugin.dyno.DynoJedisHashPipeline$1> cannot implement getHosts() in HostSupplier
            public Collection<Host> getHosts() {
                                    ^
  return type Collection<Host> is not compatible with List<Host>
~/ndbench/ndbench-dyno-plugins/src/main/java/com/netflix/ndbench/plugin/dyno/DynoJedisHashPipeline.java:66: error: method does not override or implement a method from a supertype
            @Override
            ^
~/ndbench/ndbench-dyno-plugins/src/main/java/com/netflix/ndbench/plugin/local/dynomite/proxy/LocalDynomiteProxyPlugin.java:68: error: <anonymous com.netflix.ndbench.plugin.local.dynomite.proxy.LocalDynomiteProxyPlugin$1> is not abstract and does not override abstract method getHosts() in HostSupplier
        HostSupplier hSupplier = new HostSupplier() {
                                                    ^
~/ndbench/ndbench-dyno-plugins/src/main/java/com/netflix/ndbench/plugin/local/dynomite/proxy/LocalDynomiteProxyPlugin.java:71: error: getHosts() in <anonymous com.netflix.ndbench.plugin.local.dynomite.proxy.LocalDynomiteProxyPlugin$1> cannot implement getHosts() in HostSupplier
            public Collection<Host> getHosts() {
                                    ^
  return type Collection<Host> is not compatible with List<Host>
~/ndbench/ndbench-dyno-plugins/src/main/java/com/netflix/ndbench/plugin/local/dynomite/proxy/LocalDynomiteProxyPlugin.java:70: error: method does not override or implement a method from a supertype
            @Override
            ^
~/ndbench/ndbench-dyno-plugins/src/main/java/com/netflix/ndbench/plugin/local/dynomite/proxy/LocalHttpEndpointBasedTokenMapSupplier.java:23: error: no suitable constructor found for HttpEndpointBasedTokenMapSupplier(String,int,int)
                super("http://{hostname}:8081/REST/v1/admin/cluster_describe", 8081, dynomitePort);
                ^
    constructor HttpEndpointBasedTokenMapSupplier.HttpEndpointBasedTokenMapSupplier() is not applicable
      (actual and formal argument lists differ in length)
    constructor HttpEndpointBasedTokenMapSupplier.HttpEndpointBasedTokenMapSupplier(int) is not applicable
      (actual and formal argument lists differ in length)
    constructor HttpEndpointBasedTokenMapSupplier.HttpEndpointBasedTokenMapSupplier(String,int) is not applicable
      (actual and formal argument lists differ in length)
16 errors


FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':ndbench-dyno-plugins:compileJava'.
> Compilation failed; see the compiler error output for details.

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

Remove unused imports

ndbench-core:compileJava FAILED

Hi There,
Recently I am getting this error when I want to run app or build it again

error: Bad service configuration file, or exception thrown while constructing Processor object: javax.annotation.processing.Processor: Provider org.antlr.v4.runtime.misc.RuleDependencyProcessor not found
:ndbench-core:compileJava FAILED
FAILURE: Build failed with an exception.
What went wrong:
Execution failed for task ':ndbench-core:compileJava'.
Compilation failed; see the compiler error output for details.
Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

This is with --info

All input files are considered out-of-date for incremental task ':ndbench-core:compileJava'.
Compiling with JDK Java compiler API.
error: Bad service configuration file, or exception thrown while constructing Processor object: javax.annotation.processing.Processor: Provider org.antlr.v4.runtime.misc.RuleDependencyProcessor not found
:ndbench-core:compileJava FAILED
:ndbench-core:compileJava (Thread[Daemon worker Thread 3,5,main]) completed. Took 0.242 secs.

FAILURE: Build failed with an exception.

What went wrong:
Execution failed for task ':ndbench-core:compileJava'.

Compilation failed; see the compiler error output for details.

Try:
Run with --stacktrace option to get the stack trace. Run with --debug option to get more log output.

BUILD FAILED

Total time: 2.416 secs
Stopped 0 compiler daemon(s).
Received result Failure[value=org.gradle.initialization.ReportedException: org.gradle.internal.exceptions.LocationAwareException: Execution failed for task ':ndbench-core:compileJava'.] from daemon DaemonInfo{pid=8831, address=[b3e93fbb-894a-445b-ac91-649371f0dc9b port:52240, addresses:[/0:0:0:0:0:0:0:1, /127.0.0.1]], state=Idle, lastBusy=1507564159773, context=DefaultDaemonContext[uid=fd424181-cd01-40e5-aaa5-ba4e09a1734d,javaHome=/opt/bitnami/java,daemonRegistryDir=/root/.gradle/daemon,pid=8831,idleTimeout=10800000,daemonOpts=-XX:MaxPermSize=256m,-XX:+HeapDumpOnOutOfMemoryError,-Xmx1024m,-Dfile.encoding=UTF-8,-Duser.country=US,-Duser.language=en,-Duser.variant]} (build should be done).

starting up with ndbench

hello

I have limited exposure in data store systems and cloud.
I am planning on evaluating ndbench for a particular usecase. i need help setting ndbench up and get going.
I have following questions to begin with
1. What is minimum count of serverboxes i need to start ? do you have minimum HW configuration requirements?
2. What SW/stack framework do i need to set up? i.e. specific hadoop or cassandra version or other framework?
3. how to install ndbench on my setup, integrate with framework (hadoop/cassandra/etc) and run the benchmark?
4. what kind if score or result ndbech generate and how to interpret it ?

thanks
Ankit

Condition read TPS below target warning on readEnabled in config