db-queue | Worker-queue implementation on top of Java and database | Job Scheduling library

by yoomoney-tech Java Version: Current License: MIT

X-Ray Key Features Code Snippets Community Discussions(1)Vulnerabilities Install Support

kandi X-RAY | db-queue Summary

db-queue is a Java library typically used in Data Processing, Job Scheduling, MongoDB applications. db-queue has no bugs, it has no vulnerabilities, it has build file available, it has a Permissive License and it has low support. You can download it from GitHub.

Worker-queue implementation on top of Java and database

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Quality

Security

License

Reuse

Support

db-queue has a low active ecosystem.

It has 88 star(s) with 15 fork(s). There are 12 watchers for this library.

It had no major release in the last 6 months.

There are 1 open issues and 7 have been closed. On average issues are closed in 108 days. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of db-queue is current.

Quality

db-queue has no bugs reported.

Security

db-queue has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

db-queue is licensed under the MIT License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

db-queue releases are not available. You will need to build from source code and install.

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

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

Top functions reviewed by kandi - BETA

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

Start task processing
Start the loop
Setup the executor
Start worker thread
Create the SQL for a pick task
Returns SQL string for next process time
Shuts down the queue
Resize queue execution pool
Enable task processing in a specific queue
Get execution pools for a specific queue
Enqueue a task
Evaluator implementation
Enqueue an enqueue
Eval evaluation function
Pick a task record from the queue
Await task termination
Called when a task is received
Registers a new task processor
Picks a task record from the queue
Create queueDao
Enqueue a queue
Gets the evaluation expression
Called when a task is executed
Gets the diff evaluation
Enqueue a new queue
Create a queue picker

Get all kandi verified functions for this library.

db-queue Key Features

No Key Features are available at this moment for db-queue.

db-queue Examples and Code Snippets

No Code Snippets are available at this moment for db-queue.

Community Discussions

Trending Discussions on db-queue

Mongo db queue processing is delayed at times using agenda

QUESTION

Mongo db queue processing is delayed at times using agenda

Asked 2022-Mar-22 at 11:45

We are using a mongodb-queue to do some processing and we are using the agenda scheduler to run the job every 3 mins to get a message from the queue and process the same. The issue that we are observing is that its not working consistently as expected, at times the message remains in the queue for sometime (not even acknowledged,means picked up) before it get processed once it starts processing the subsequent ones in the queue are getting processed faster again till that delay happens again.

if you look at this deleted timestamp the last three transactions on top ran much later to the one before it whereas its supposed to process 3 to 4 mins later than the 4th record.

find below the code we use to fetch and process from queue

...

ANSWER

Answered 2022-Mar-22 at 11:45

The problem was with the agenda initializer the job never got created in the mongo db as the collection for the job was not paused while initializing the agenda which caused the scheduler to behave weirdly picking up from the queue unevenly especially while we had multiple instances of the application using its own scheduler jobs (collection name will be dynamic based on instance).

Source https://stackoverflow.com/questions/71142235

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

Vulnerabilities

No vulnerabilities reported

Install db-queue

You can download it from GitHub.
You can use db-queue 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 db-queue 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

As of now the library supports PostgreSQL, MSSQL and Oracle as backing database, however library architecture makes it easy to add other relational databases which has support for transactions and "for update skip locked" feature, for example MySql, H2. Feel free to add support for other databases via pull request.

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