hazelcast-aws | AWS EC2 discovery plugin for hazelcast | Web Services library

by hazelcast Java Version: v3.4 License: Non-SPDX

X-Ray Key Features Code Snippets(3)Community Discussions(3)Vulnerabilities Install Support

kandi X-RAY | hazelcast-aws Summary

hazelcast-aws is a Java library typically used in Web Services applications. hazelcast-aws has no vulnerabilities, it has build file available and it has low support. However hazelcast-aws has 1 bugs and it has a Non-SPDX License. You can download it from GitHub.

This repository contains a plugin which provides the automatic Hazelcast member discovery in the Amazon Web Services Platform.

Support

Quality

Security

License

Reuse

Support

hazelcast-aws has a low active ecosystem.

It has 41 star(s) with 49 fork(s). There are 62 watchers for this library.

It had no major release in the last 12 months.

There are 8 open issues and 80 have been closed. On average issues are closed in 172 days. There are 11 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of hazelcast-aws is v3.4

Quality

hazelcast-aws has 1 bugs (0 blocker, 0 critical, 0 major, 1 minor) and 75 code smells.

Security

hazelcast-aws has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

hazelcast-aws code analysis shows 0 unresolved vulnerabilities.

There are 42 security hotspots that need review.

License

hazelcast-aws has a Non-SPDX License.

Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

Reuse

hazelcast-aws releases are available to install and integrate.

Build file is available. You can build the component from source.

Installation instructions are not available. Examples and code snippets are available.

hazelcast-aws saves you 1766 person hours of effort in developing the same functionality from scratch.

It has 3907 lines of code, 308 functions and 49 files.

It has medium code complexity. Code complexity directly impacts maintainability of the code.

Top functions reviewed by kandi - BETA

kandi has reviewed hazelcast-aws and discovered the below as its top functions. This is intended to give you an instant insight into hazelcast-aws implemented functionality, and help decide if they suit your requirements.

Gets all the public addresses of all tasks
Generate the HTTP headers for the given endpoint
Fetches the public IP addresses associated with ECS
Creates the body of the request
Creates an AWS client
Logs AWS environment
Logs information about AWS ECS environment
Resolve the cluster
Discover the member metadata
Resolves the placement group of the resource
Get the availability zone
Parses the EcsMetadata response
Creates tag values
Validate configuration
Compares two credentials
Retrieves all configuration properties
Resolves EC2 IAM role
Returns a list of available nodes

Get all kandi verified functions for this library.

hazelcast-aws Key Features

No Key Features are available at this moment for hazelcast-aws.

hazelcast-aws Examples and Code Snippets

Hazelcast Discovery Plugin for AWS,EC2 Configuration,EC2 Hazelcast Client Configuration

Java

Lines of Code : 30

License : Non-SPDX (NOASSERTION)

Copy


  
    
      my-access-key
      my-secret-key
      us-west-1
      my-ec2-instance-tag-key
      my-ec2-instance-tag-value
      true
    
  


hazelcast-client:
  network:
    aws:
      enabled: true
      access-key: my-access-key
      secret

Hazelcast Discovery Plugin for AWS,ECS/Fargate Configuration,ECS Hazelcast Client Configuration

Java

Lines of Code : 27

License : Non-SPDX (NOASSERTION)

Copy


  
    
      my-access-key
      my-secret-key
      eu-central-1
      my-cluster
      true
    
  


hazelcast-client:
  network:
    aws:
      enabled: true
      access-key: my-access-key
      secret-key: my-secret-key
      region: eu-centr

Hazelcast Discovery Plugin for AWS,ECS/Fargate Configuration,ECS Hazelcast Member Discovery

Java

Lines of Code : 25

License : Non-SPDX (NOASSERTION)

Copy


  
    
      
      
    
    
      10.0.*.*
    
  


hazelcast:
  network:
    join:
      multicast:
        enabled: false
      aws:
        enabled: true
    interfaces:
      enabled: true
      interfaces:
        - 10.0.*.*

config.getNet

Community Discussions

Trending Discussions on hazelcast-aws

SockJS connections in a clustered Vert.x environment

How to update ECS-service forming a Hazelcast cluster group gracefully?

Client unable to connect to Hazelcast-jet ec2 clusters

QUESTION

SockJS connections in a clustered Vert.x environment

Asked 2021-Apr-06 at 17:43

The vertx application runs in Docker containers, on two EC2 instances and is clustered.

Clustering is achieved with the hazelcast-aws plugin and the application is started like this:

...

ANSWER

Answered 2021-Apr-02 at 18:40

Since vertx does round robin by default when clustered and there are two instances, this means any instance gets every other message (from 1., above) and makes the client, which connects to one instance only, receive exactly half of all expected responses.

This assumption is only partially correct. Vert.x does round-robin, yes, but this means each instance will get half of the connections, not half of the messages.

Once connection is established, all its messages will arrive to a single instance.

So this:

Would that be correct and is there a way to get 100% of messages to the client, connected to just one node, without introducing things like RabbitMQ?

Already happens.

Source https://stackoverflow.com/questions/66919112

QUESTION

How to update ECS-service forming a Hazelcast cluster group gracefully?

Asked 2020-Jan-29 at 08:13

We have an ECS-service (EC2 ECS) with several tasks forming a Hazelcast cluster group (hazelcast:3.10.6, hazelcast-aws:2.2, we use Hazelcast for storing some shared data and locks in distributed objects). It uses rolling service update with minimum healthy percent set to 100, and maximum at 200.

Updating this service with new Task Definition is not very reliable - often Hazelcast can't preserve existing cluster due to the nature of ECS's service updating process. It sometimes removes tasks with old task definitions very quickly, often several at a time, breaking Hazelcast cluster group.

Yes, we can refactor the service to use client-server model to store memory grid in a separate service or use alternatives, such as storing locks in Redis, but it would be interesting to listen someone who already faced similar difficulties and found a way to gracefully update Hazelcast-enabled services in ECS.

...

ANSWER

Answered 2020-Jan-29 at 08:13

To make Hazelcast reliable on basically any containerized environment, you need to define graceful shutdown. That would prevent any data loss or multiple Hazelcast instances killed at the same time.

In order to do it, you can check ECS doc about StopTask and Hazelcast documentation on Graceful Shutdown. In short, you need to:

Add hazelcast.shutdownhook.policy=GRACEFUL to JAVA_OPTS
Add hazelcast.graceful.shutdown.max.wait= to JAVA_OPTS
Change ECS_CONTAINER_STOP_TIMEOUT env variable to

If you store a lot of data in the Hazelcast cluster, you can set the value max-waiting-time-for-data-migration to a high number, like even a few hours.

Source https://stackoverflow.com/questions/59960074

QUESTION

Client unable to connect to Hazelcast-jet ec2 clusters

Asked 2019-Sep-27 at 23:52

I setup a Hazelcast-jet cluster on aws ec2 following instructions here. I made use of the hazelcast-aws model so that nodes can automatically discover each other. The cluster is up and running:

...

ANSWER

Answered 2019-Sep-27 at 23:52

Marko was right (look at comments of the question). This looks like some AWS network constrains. I setup netcat server with port 5701 on one of my ec2 box. I was not able to connect to the port from my laptop using nc but able to connect to it from another ec2 in the same VPC. I then did the same experiment with port 80. I can connect to the port from both my laptop and ec2 instances from the same VPC. Looks like something only allows instances outside of AWS to connect to a couple of well-known ports of ec2 instances.

Anyways, I unblocked myself by running the hazelcast server on port 80. This is not ideal but much more convenient for me to try out some hazelcast-jet features from my IDE comparing to deploy testing code to ec2.

Source https://stackoverflow.com/questions/58125672

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install hazelcast-aws

You can download it from GitHub.
You can use hazelcast-aws like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the hazelcast-aws component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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