event-scheduler | Always-On event scheduler | Job Scheduling library

 by   phluentmed Python Version: 0.1.3 License: MIT

kandi X-RAY | event-scheduler Summary

kandi X-RAY | event-scheduler Summary

event-scheduler is a Python library typically used in Data Processing, Job Scheduling applications. event-scheduler has no bugs, it has no vulnerabilities, it has build file available, it has a Permissive License and it has low support. You can install using 'pip install event-scheduler' or download it from GitHub, PyPI.

The Event Scheduler uses an internal thread to allow the application to schedule events to occur either ASAP or at a specified time in the future. Instead of blocking your application's main thread, you can concurrently run some lightweight tasks. We took some inspiration for the API design from library's scheduler. Unlike the native sched module, the Event Scheduler is always on and ready to accept events. Event Scheduler is completely thread-safe too!.
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            kandi-support Support

              event-scheduler has a low active ecosystem.
              It has 19 star(s) with 1 fork(s). There are 3 watchers for this library.
              OutlinedDot
              It had no major release in the last 12 months.
              event-scheduler has no issues reported. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of event-scheduler is 0.1.3

            kandi-Quality Quality

              event-scheduler has no bugs reported.

            kandi-Security Security

              event-scheduler has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

            kandi-License License

              event-scheduler is licensed under the MIT License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              event-scheduler releases are not available. You will need to build from source code and install.
              Deployable package is available in PyPI.
              Build file is available. You can build the component from source.
              Installation instructions, examples and code snippets are available.

            Top functions reviewed by kandi - BETA

            kandi has reviewed event-scheduler and discovered the below as its top functions. This is intended to give you an instant insight into event-scheduler implemented functionality, and help decide if they suit your requirements.
            • Run the scheduler
            • Schedule a recurring event
            • Notify the thread
            • Stop the scheduler
            • Cancel an event
            • Cancel all pending requests
            • Enter Los Angeles
            • Insert an event into the queue
            • Create an event
            • Return the list of queued events
            • Start the scheduler
            • Takes a list of transactions
            Get all kandi verified functions for this library.

            event-scheduler Key Features

            No Key Features are available at this moment for event-scheduler.

            event-scheduler Examples and Code Snippets

            No Code Snippets are available at this moment for event-scheduler.

            Community Discussions

            QUESTION

            Getting MySQL error creating handler in an event
            Asked 2020-Nov-13 at 20:34

            I'm trying to create an Event in MySQL 5.6 and I'm getting an error whenever I try to DECLARE something, like a parameter or handler:

            SQL Error [1064] [42000]: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'DECLARE CONTINUE HANDLER FOR SQLEXCEPTION SET @rollMeBack = TRUE;

            I'm a SQL Server guy and the syntax is giving me ulcers. I tried declaring a variable like in this question, but I still get the error at that line. Help me Obi Wan Kenobi: you're my only hope.

            Entire (obfuscated) code:

            ...

            ANSWER

            Answered 2020-Nov-13 at 20:34

            A couple of modifications render this operable.

            Firstly, the handler must be declared in the correct place. From the docs:

            Handler declarations must appear after variable or condition declarations.

            Secondly, the DO IF EXISTS...END IF; should contain a BEGIN...END block after which you do your handler declaration:

            Source https://stackoverflow.com/questions/64827344

            QUESTION

            Why is MySQL Event Scheduler Stuck Opening Tables?
            Asked 2020-Aug-12 at 05:44

            I'm using MySQL 8.0.21 From the MySQL Community Installer on Windows 10 updated to version2004 and for some reason if I create a event in the event scheduler, which calls a procedure once every second (regardless of what that SP actually does, I'll explain my test case) - my CPU maxes out and when I look at the active connections in MySQL Workbench, it stacks up a ton of worker threads which stall on the "Opening Tables" state. My PC freezes, I have to edit the event to be disabled, stop the MySQL process in Task Manager and Start the service again.

            TEST CASE

            During setup of a brand new server, I used all default settings, except I enabled the general log and I use the new 8.0+ mysql_sha2_password encryption (although I ALTER USER to mysql_native_password for phpmyadmin so that might revert it, I'm honestly not sure)

            • I create a new Schema called "Test"
            • I create one Table called "TestTable" has only one column called "column1" INT
            • I then create a Stored Procedure "TestProc" which does "SELECT COUNT(*) FROM TestTable;" Adjusts Priv.'s, DEFINER::Definer is root@localhost and Reads SQL
            • And Finally I create an Event called "TestEvent" which does "CALL TestProc()s" Reoccurring every 1/sec, preserve on Complete, and definer is root@localhost
            • restart server before event is fired.

            Also, if I enable the event, or create it, it'll run without issue, it's important to note that the issue begins when the event scheduler is left on, and the event is left enabled, then the server is restarted from the services in task manager. Immediately the CPU jacks up to max and active connections show threads stacking up without completing. Any clues are appreciated, I find no actual errors nor do I have any idea where to begin debugging anymore. I've tried skipping grant tables (but obviously that's not optimal, and didn't work).

            I did find a hint when reviewing the MySQL 8.0+ docs

            "If a repeating event does not terminate within its scheduling interval, the result may be multiple instances of the event executing simultaneously. If this is undesirable, you should institute a mechanism to prevent simultaneous instances. For example, you could use the GET_LOCK() function, or row or table locking. " from

            However, when analyzing there does not appear to be any locks, nor should I need to implement such manually just for this test case (or my actual program)

            UPDATE

            Up to this point, albeit a rather niche bug, I do believe that is exactly what this is, and I have posted it on MySQL bug forum. Reference post is here:

            ...

            ANSWER

            Answered 2020-Aug-12 at 05:44

            The answer actually has turned out to be a bug which is reproducible - Bug#: 100449

            Source https://stackoverflow.com/questions/63223519

            QUESTION

            serverless - not able to trigger aws lambda using cloudwatch event
            Asked 2020-Jul-01 at 08:53

            Currently my serverless.yml file looks like this:

            ...

            ANSWER

            Answered 2020-Jul-01 at 08:53

            I tried to replicate the issue using serverless framework.

            To do so I added the following AWS::Lambda::Permission to the end of your template:

            Source https://stackoverflow.com/questions/62671096

            QUESTION

            Populating a dropdownlist with AngularJS
            Asked 2018-May-27 at 09:20

            I want to populate a dropdownlist with values from a table I created called Venues. This table has only two things in it, the Venue Id and Name.

            I created a Code First Entity Data Model from the database that holds the table Venues and I created this method in my controller:

            ...

            ANSWER

            Answered 2017-Jul-02 at 08:14

            Let's see your code.(check the comments)

            Source https://stackoverflow.com/questions/44841515

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

            Vulnerabilities

            No vulnerabilities reported

            Install event-scheduler

            Enable the event scheduler to start taking events. Stop the event scheduler and its internal thread. Set hard_stop to True to stop the scheduler right away and discard all pending events. Set hard_stop to False to wait for all events to finish executing at their scheduled times. Schedule an event with a callable action to be executed after the delay. Events will be executed according to their delay and priority (lower number = higher priority). arguments holds positional arguments and kwargs hold keyword arguments for the action. Returns an event object which can be used to cancel the event. Cancel the event if it has not yet been executed. Cancel the recurring event and all future occurrences. Output: 5 seconds has passed since this event was entered! 10 second interval has passed! 10 second interval has passed! ...

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            Install
          • PyPI

            pip install event-scheduler

          • CLONE
          • HTTPS

            https://github.com/phluentmed/event-scheduler.git

          • CLI

            gh repo clone phluentmed/event-scheduler

          • sshUrl

            git@github.com:phluentmed/event-scheduler.git

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