pika | Pika is a NoSQL database compatible with redis which is developed by Qihoo's infrastructure team | Database library

 by   OpenAtomFoundation C++ Version: v3.4.1 License: BSD-3-Clause

kandi X-RAY | pika Summary

kandi X-RAY | pika Summary

pika is a C++ library typically used in Database, MongoDB applications. pika has no bugs, it has no vulnerabilities, it has a Permissive License and it has medium support. You can download it from GitHub.

Pika is a persistent huge storage service , compatible with the vast majority of redis interfaces (details), including string, hash, list, zset, set and management interfaces. With the huge amount of data stored, redis may suffer for a capacity bottleneck, and pika was born for solving it. Except huge storage capacity, pika also support master-slave mode by slaveof command, including full and partial synchronization. You can also use pika together with twemproxy or codis(pika has supported data migration in codis,thanks left2right and fancy-rabbit) for distributed Redis solution.
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              pika has a medium active ecosystem.
              It has 5116 star(s) with 1069 fork(s). There are 280 watchers for this library.
              OutlinedDot
              It had no major release in the last 12 months.
              There are 83 open issues and 681 have been closed. On average issues are closed in 47 days. There are 7 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of pika is v3.4.1

            kandi-Quality Quality

              pika has no bugs reported.

            kandi-Security Security

              pika has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

            kandi-License License

              pika is licensed under the BSD-3-Clause License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              pika releases are available to install and integrate.
              Installation instructions are not available. Examples and code snippets are available.

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            pika Key Features

            No Key Features are available at this moment for pika.

            pika Examples and Code Snippets

            No Code Snippets are available at this moment for pika.

            Community Discussions

            QUESTION

            How to properly handle with AMQP connections to and api with multiple producers
            Asked 2021-Jun-11 at 07:52

            I'm developing an api that communicates with other services from an event architecture using RabbitMQ Topics. Several routes from my API will publish events and I would like to have a single live connection at all times in my API. That way, at every new request I just create a new channel, and keep only one connection (I decided to do this after reading about how expensive an amqp 0-9-2 connection is).

            For now I have something like this:

            ...

            ANSWER

            Answered 2021-Jun-11 at 07:52

            form the official pika documentation

            Is Pika thread safe?

            Pika does not have any notion of threading in the code. If you want to use Pika with threading, make sure you have a Pika connection per thread, created in that thread. It is not safe to share one Pika connection across threads, with one exception: you may call the connection method add_callback_threadsafe from another thread to schedule a callback within an active pika connection.

            so your solution can work with a single thread

            Source https://stackoverflow.com/questions/67909244

            QUESTION

            TypeScript error- This condition will always return 'false' since the types 'boolean' and 'string' have no overlap
            Asked 2021-May-07 at 03:53

            I am adding ngIf condition in ng-container where if the condition satisfies then display the component

            The problem I am facing is I am getting error

            ...

            ANSWER

            Answered 2021-May-07 at 03:32

            Adding ! throws off the logic you're trying to implement because it'll negate the value just to the right of it. This:

            Source https://stackoverflow.com/questions/67428660

            QUESTION

            Asyncio: Fastapi with aio-pika, consumer ignores Await
            Asked 2021-May-05 at 18:50

            I am trying to hook my websocket endpoint with rabbitmq (aio-pika). Goal is to have listener in that endpoint and on any new message from queue pass the message to browser client over websockets.

            I tested the consumer with asyncio in a script with asyncio loop. Works as I followed and used aio-pika documentation. (source: https://aio-pika.readthedocs.io/en/latest/rabbitmq-tutorial/2-work-queues.html, worker.py)

            However, when I use it in fastapi in websockets endpoint, I cant make it work. Somehow the listener:

            ...

            ANSWER

            Answered 2021-May-05 at 18:50

            The solution was simply.

            aio-pika queue.consume even though we use await is nonblocking, so this way we consume

            Source https://stackoverflow.com/questions/65940177

            QUESTION

            Uncomplete installation of the RASA package with the issue: FileNotFoundError: [Errno 2] No such file or directory: 'HISTORY.rst'
            Asked 2021-Apr-01 at 14:19

            i have been using rasa for the past few weeks without problems. But recently i had issues with the installation of Spacy, leading me to uninstall an reinstall python. The issue may have occurred because of some dualities between python3.8 and 3.9 which i wasnt abled to pinpoint.

            After deleting all python version from my computer, i just reinstalled python 3.9.2. and reinstall rasa with:

            ...

            ANSWER

            Answered 2021-Mar-21 at 14:59

            rasa 2.4 declares compatibility with Python 3.6, 3.7 and 3.8 but not 3.9 so pip is trying to find one compatible with 3.9 or at least one that doesn't declare any restriction. It finds such release at version 0.0.5.

            To use rasa 2.4 downgrade to Python 3.8.

            PS. Don't hurry up to upgrade to the latest Python — 3rd-party packages are usually not so fast. Currently Python 3.7 and 3.8 are the best.

            Source https://stackoverflow.com/questions/66733525

            QUESTION

            Easier way to use pika asynchronous (twisted)?
            Asked 2021-Mar-31 at 13:20

            This is my first project using rabbitmq and I am complete lost because I am not sure what would be the best way to solve a problem.

            The program is fairly simple, it just listen for alarms events, and then put the events in a rabbitmq queue, but I am struggling with the architecture of the program.

            If I open, publish and then close the connection for every single event, I will add a lot of latency, and unnecessary packages will be transmitted (even more than the usual because I am using TLS)...

            If I keep a connection open, and create a function that publish the messages (I only work with a single queue, pretty basic), I will eventually have problems because multiple events can occur at the same time, and my program will not know what to do if the connection to the rabbitmq broker end.

            Reading their documentations, the solution seems use one of their "Connection Adapters", which would fit me like a glove because I just rewrite all my connection stuff from basic sockets to use Twisted (I really liked their high level approach). But there is a problem. Their "basic example" is fairly complex for someone who barely considers himself "intermediate".

            In a perfect world, I would be able to run the service in the same reactor as the "alarm servers" and call a method to publish a message. But I am struggling to understand the code. Has anyone who worked with pika could point me a better direction, or even tell me if there is a easier way?

            ...

            ANSWER

            Answered 2021-Mar-31 at 13:20

            Well, I will post what worked for me. Probably is not the best alternative but maybe it helps someone who gets here with the same problem.

            First I decided to drop Twisted and use Asyncio (nothing personal, I just wanted to use it because it's already in python), and even tho pika had a good example using Asynchronous, I tried and found it easier to just use aio_pika.

            I end up with 2 main functions. One for a publisher and another for a subscriber. Bellow is my code that works for me...

            Source https://stackoverflow.com/questions/66565566

            QUESTION

            Is Celery designed to run tasks that can execute when data is pushed in a RabbitMQ queue and consumed?
            Asked 2021-Mar-26 at 16:04
            Architecture

            I am planning to publish data from IoT nodes via MQTT into a RabbitMQ Queue. The data is then processed and the state needs to be saved into Redis.

            Current Implementation

            I spun up a docker container for RabbitMQ and configured it to enable MQTT (Port: 1883).

            Based on RabbitMQ's MQTT Plugin Documentation

            • Data from the MQTT Port is sent to amq.topic Exchange and subscribed to Queue Names similar to MQTT topics where / is replaced by . e.g. hello/test MQTT Topic -> hello.test RabbitMQ Queue.
            Basic Consumption via AMQP Port

            Simple example using pika is as follows and works perfectly

            ...

            ANSWER

            Answered 2021-Mar-26 at 16:04

            In short - no.

            Celery is not designed to process arbitrary data sent to a message queue system. It is designed to produce/consume messages that contain serialised Celery task details, so that consumers can execute particular task on the other end, and put the result into the result backend.

            However, I firmly believe almost any arbitrary message you can think of can be wrapped (this way or another) into a Celery task. The real problem though is when you do not want Celery on one of the ends (producer or consumer). Producers can send tasks without the ned to share code that contains task definitions using the convenient send_task() function.

            Source https://stackoverflow.com/questions/66573136

            QUESTION

            How to save rabbitMQ messages to csv file?
            Asked 2021-Mar-10 at 11:29

            I am new to rabbitMQ and I used the "Hello world" tutorial for python on rabbitMQ page. Is is somehow possible to store messages to CSV file? I want to store messages which contain substring test.

            I have a send.py

            ...

            ANSWER

            Answered 2021-Mar-10 at 11:29

            You can work with csv using the csv module. like

            Source https://stackoverflow.com/questions/66561174

            QUESTION

            Downloading Pip Packages in Docker Container
            Asked 2021-Mar-04 at 17:03

            I am trying to download the Pika package using Pip3 inside of a Dockerfile/container. My current Dockerfile looks like this:

            ...

            ANSWER

            Answered 2021-Mar-04 at 17:03

            So I think I found a solution. I changed my Dockerfile to have my Pika installation above the creation of a new user. So it now looks like this:

            Source https://stackoverflow.com/questions/66478615

            QUESTION

            Why does publisher declares queue a in Pika RabbitMQ?
            Asked 2021-Feb-25 at 17:28

            I have gone through the fundamentals of RabbitMQ. One thing I figured out that a publisher does not directly publish on a queue. The exchange decides on which queue the message should be published based on routing-key and type of exchange (code below is using default exchange). I have also found an example code of publisher.

            ...

            ANSWER

            Answered 2021-Feb-25 at 11:31

            The consumer can declare the queue and bind it to the exchange when the consumer connects to RabbitMQ. A fanout exchange then copies and routes a received message to all queues bound to it, regardless of routing keys or pattern matching as with direct and topic exchanges.

            So no, the publisher does not have to be aware of all queues bound to the exchange. However, the publisher can ensure that the queue exists to ensure that the code will run smoothly, but that is of more importance for other exchange types.

            Source https://stackoverflow.com/questions/66355154

            QUESTION

            Running RabbitMQ Pika with Quart
            Asked 2021-Feb-22 at 15:17

            I am using the Quart framework, but I also need to use the RabbitMQ Pika connector, but I can't get them to play nice as they both have infinite loops.

            Entrypoint:

            ...

            ANSWER

            Answered 2021-Feb-22 at 15:17

            Pika is not thread safe as you have already spotted but this is not why your program blocks.

            Your problem might be here:

            Source https://stackoverflow.com/questions/66317550

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

            Vulnerabilities

            No vulnerabilities reported

            Install pika

            You can download it from GitHub.

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            https://github.com/OpenAtomFoundation/pika.git

          • CLI

            gh repo clone OpenAtomFoundation/pika

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            git@github.com:OpenAtomFoundation/pika.git

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