https://github.com/karthik-ir/followermaze

https://github.com/karthik-ir/followermaze

Last synced: about 2 months ago
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• Host: GitHub
• URL: https://github.com/karthik-ir/followermaze
• Owner: karthik-ir
• Created: 2018-02-26T09:52:30.000Z (almost 7 years ago)
• Default Branch: master
• Last Pushed: 2018-02-26T09:53:23.000Z (almost 7 years ago)
• Last Synced: 2024-10-18T15:53:56.206Z (3 months ago)
• Language: Java
• Size: 37.1 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: Readme.md

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README

        
# FollowerMaze

Build the project with `mvn clean package`

After which you can run the project `java -jar target/follower-0.0.1-SNAPSHOT.jar -Xmx1G`

# Inputs: (Optional)

The program by default listens to 

`eventListenerPort` at `9090` and `clientListenerPort` at `9099`

It can be changed by setting the environment variables `eventListenerPort` and `clientListenerPort`

##### 3rd Party Libraries used

1. Log4j2: For all the logging related functions.

2. Mockito: For mocking socket calls in unit tests

#### Performance test

**Run 1**: (DEFAULT) 

	10000000 Events

	

	1000 numberOfUsers 

	

	100 maxEventSourceBatchSize

**425 seconds** 

**Run 2** :  (Exceeding Batch size ->1 )

	10000000 Events

	

	1000 numberOfUsers 

	

	1000 maxEventSourceBatchSize

**394 Seconds**

**Run 3** :  (Exceeding Batch size ->2 )

	10000000 Events

	

	1000 numberOfUsers 

	

	5000 maxEventSourceBatchSize

**421 Seconds** 

**Run 4** : (Maxing Number of default users * 10)

	10000000 Events

	

	10000 numberOfUsers 

	

	10000 maxEventSourceBatchSize

**7937 seconds**

**Run 5**:(Maxing Number of default concurrency * 10 and also Increasing the batchsize)

	10000000 Events

	

	maxEventSourceBatchSize=30000 

	

	numberOfUsers=1000 

	

	concurrencyLevel=1000

**790 SECONDS**.

**Run 6**: (Maxing the concurrency to default * 100)

	10000000 Events

	

	maxEventSourceBatchSize=30000 

	

	numberOfUsers=1000 

	

	concurrencyLevel=10000

**802 SECONDS**

**Run 7**: (Variance between user and concurrency)

	10000000 Events

	

	maxEventSourceBatchSize=50000 

	

	numberOfUsers=100

	

	concurrencyLevel=10000

**591 SECONDS**

#### Developer overview :

The implementation is built using observer pattern. 

`FollowerMaze` is the actual start point call by the `main` method. 

It has two main functionality `startup` and `shutdown`.

Its started in 3 threads: 

* `readInputstreamAndEnqueue`

	

	Waits for the clients to be connected and 

	registers each with the observable.

* `eventProducer`

	Watches the min priority queue for the next message to 

	be processed and increments the message count.

* `waitForClientsAndSubscribe`

	

	Reads the stream incoming from the event socket 

	and on input, Processes the input and enqueues