mantis

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A platform that makes it easy for developers to build realtime, cost-effective, operations-focused applications

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About

A platform that makes it easy for developers to build realtime, cost-effective, operations-focused applications

Mantis Documentation

Official Website

Development

Setting up Intellij

Run ./gradlew idea to (re-) generate IntelliJ project and module files from the templates in .baseline. The generated project is pre-configured with Baseline code style settings and support for the CheckStyle-IDEA plugin.

Install Docker

Install and run Docker to support local containers.

Building

bash

$ ./gradlew clean build

Testing

bash

$ ./gradlew clean test

Formatting the code

Run ./gradlew format task which autoformats all Java files using Spotless.

Building deployment into local Maven cache

bash

$ ./gradlew clean publishNebulaPublicationToMavenLocal

Releasing

We release by tagging which kicks off a CI build. The CI build will run tests, integration tests, static analysis, checkstyle, build, and then publish to the public Bintray repo to be synced into Maven Central.

Tag format:

vMajor.Minor.Patch

You can tag via git or through Github's Release UI.

Contributing

Mantis is interested in building the community. We welcome any forms of contributions through discussions on any of our mailing lists or through patches.

For more information on contribution, check out the contributions file here.

Module Structure

This excludes all connectors and examples as they are mostly leaf nodes in the dependency graph.

Module	Purpose	Example Classes	Package Prefixes
mantis-common-serde	Support for serializing and deserializing POJOs using Json	JsonSerializer	io.mantisrx.common.*
mantis-discovery-proto	todo: need to fill this in	JobDiscoveryProto AppJobClustersMap StageWorkers	com.netflix.mantis.discovery.proto.*
mantis-common	Mantis common code shared across modules	MantisJobDefinition MachineDefinition MantisJobState	io.mantisrx.common.* io.mantisrx.runtime.* io.mantisrx.server.code.* io.reactivx.mantis.operators.* com.mantisrx.common.utils.*
mantis-remote-observable	connection to other job,stage related code	ConnectToObservable ConnectToGroupedObservable RemoteObservable	io.reactivex.mantis.remote.observable.* io.reactivex.netty.codec.*
mantis-control-plane-core	common code between mantis-control-plane-server, mantis-control-plane-client, mantis-server-worker, mantis-server-agent	TaskExecutorID ClusterID ExecuteStageRequest JobAssignmentResult Status	io.mantisrx.server.core.* io.mantisrx.server.master.resourcecluster.* io.mantisrx.server.worker.*
mantis-control-plane-client	API to talk to the mantis control plane server	MasterClientWrapper MantisMasterGateway MantisMasterClientApi	io.mantisrx.server.master.client.* io.mantisrx.server.master.resourcecluster.*
mantis-network	todo: need to fill this in
mantis-publish-core	todo: need to fill this in
mantis-server-worker-client	API to interact with workers	MetricsClient MetricsClientImpl WorkerConnection WorkerMetricsClient	io.mantisrx.server.worker.client.*
mantis-runtime	Runtime that the jobs need to depend upon. Job DSL should go in here along with how to talk to other jobs	KeyToKey GroupToGroup Source Sink	io.mantisrx.runtime.*
mantis-publish-netty	todo: need to fill this in
mantis-client	client to interact with mantis control plane	MantisClient::submitJob MantisClient::killJob	io.mantisrx.client.*
mantis-publish-netty-guice	todo: need to fill this in
mantis-control-plane-server	Actual server that runs the mantis master code	MasterMain SchedulingService ServiceLifecycle	io.mantisrx.master.* io.mantisrx.server.master.*
mantis-server-agent	Contains mantis-runtime agnostic code to start the task executor that runs on the agent	TaskExecutor TaskExecutorStarter BlobStore BlobStoreAwareClassLoaderHandle	io.mantisrx.server.agent.*
mantis-server-worker	One implementation of Mantis Worker that depends on the master runtime	MantisWorker Task ExecuteStageRequestService JobAutoScaler	io.mantisrx.server.worker.config.* io.mantisrx.server.worker.jobmaster.*

Dependency Graph

mermaid

graph TD;
    A[mantis-common-serde]-->B[mantis-common];
    B-->C[mantis-control-plane-core];
    B-->D[mantis-runtime];
    C-->E[mantis-control-plane-client];
    E-->F[mantis-server-worker-client];
    F-->G[mantis-client];
    E-->G;
    C-->H[mantis-control-plane-server];
    C-->I[mantis-server-worker];
    F-->I;
    D-->I;
    F-->J[mantis-server-agent];
    E-->J;