grace | Graceful restart & zero downtime deploy for Go servers | Runtime Evironment library

by facebookarchive Go Version: Current License: MIT

X-Ray Key Features Code Snippets(1)Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | grace Summary

grace is a Go library typically used in Server, Runtime Evironment applications. grace has no bugs, it has no vulnerabilities, it has a Permissive License and it has medium support. You can download it from GitHub.

Graceful restart & zero downtime deploy for Go servers.

Support

Quality

Security

License

Reuse

Support

grace has a medium active ecosystem.

It has 4896 star(s) with 434 fork(s). There are 163 watchers for this library.

It had no major release in the last 6 months.

There are 4 open issues and 26 have been closed. On average issues are closed in 42 days. There are 5 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of grace is current.

Quality

grace has 0 bugs and 0 code smells.

Security

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

grace code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

grace 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

grace releases are not available. You will need to build from source code and install.

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

It has 1177 lines of code, 62 functions and 6 files.

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

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grace Key Features

No Key Features are available at this moment for grace.

grace Examples and Code Snippets

Stop the server .

python

Lines of Code : 28

License : Non-SPDX (Apache License 2.0)

Copy

def stop_server(self, grace=1.0):
    """Request server stopping.

    Once stopped, server cannot be stopped or started again. This method is
    non-blocking. Call `wait()` on the returned event to block until the server
    has completely stopped.

Community Discussions

Trending Discussions on grace

Powershell - CloseMainWindow work for all?

Server crashing while being interrupted sending large chunk of data

Firestore subscribe to subcollection that might not yet exist

Docker-compose and rails console issue. 'Could not find rake-13.0.6 in any of the sources'

How to make a Spring Boot application quit on tomcat failure

SwipeToDismiss inside LazyColumn with animation

BackgroundService Graceful Shutdown - Complete work and write to DB

Submitting multiple runs to the same node on AzureML

[HTCONDOR][kubernetes / k8s] : Unable to start minicondor image within k8s - condor_master not working

Server shutdown never finishes

QUESTION

Powershell - CloseMainWindow work for all?

Asked 2022-Apr-09 at 22:32

I'm looking for a way to gracefully close/quit the GoogleDrive app which runs under the process GoogleDriveFS.

...

ANSWER

Answered 2022-Apr-08 at 21:22

You can do something like this:

Source https://stackoverflow.com/questions/71800135

QUESTION

Server crashing while being interrupted sending large chunk of data

Asked 2022-Apr-05 at 10:50

My server crashes when I gracefully close a client that is connected to it, while the client is receiving a large chunk of data. I am thinking of a possible lifetime bug as with the most bugs in boost ASIO, however I was not able to point out my mistake myself.

Each client establishes 2 connection with the server, one of them is for syncing, the other connection is long-lived one to receive continuous updates. In the "syncing phase" client receives large data to sync with the server state ("state" is basically DB data in JSON format). After syncing, sync connection is closed. Client receives updates to the DB as it happens (these are of course very small data compared to "syncing data") via the other connection.

These are the relevant files:

connection.h

...

ANSWER

Answered 2022-Apr-05 at 01:14

Reviewing, adding some missing code bits:

Source https://stackoverflow.com/questions/71744762

QUESTION

Firestore subscribe to subcollection that might not yet exist

Asked 2022-Apr-03 at 19:27

I've got a firebase app where users share a calendar. My firestore collection is structured as follows:

...

ANSWER

Answered 2022-Apr-03 at 19:27

You can add onSnapshot() listener to collections that do not exist. The QuerySnapshot returned by listener would just be empty in such cases:

Source https://stackoverflow.com/questions/71727173

QUESTION

Docker-compose and rails console issue. 'Could not find rake-13.0.6 in any of the sources'

Asked 2022-Jan-17 at 21:44

I'm having some issues when trying to run rails console under docker. All other rails commands work as expected, but console does not.

...

ANSWER

Answered 2022-Jan-17 at 20:50

Every time you execute docker-compose run you create a new container, so the gems previously installed are not available anymore.

In order to solve your problem you could run bundle install in Dockerfile, install the gems in the app folder bundle install --path vendor/bundle or mount the directory bundle uses by default to store the gems, typically /usr/local/bundle

Source https://stackoverflow.com/questions/70746798

QUESTION

How to make a Spring Boot application quit on tomcat failure

Asked 2022-Jan-15 at 09:55

We have a bunch of microservices based on Spring Boot 2.5.4 also including spring-kafka:2.7.6 and spring-boot-actuator:2.5.4. All the services use Tomcat as servlet container and graceful shutdown enabled. These microservices are containerized using docker.
Due to a misconfiguration, yesterday we faced a problem on one of these containers because it took a port already bound from another one.
Log states:

...

ANSWER

Answered 2021-Dec-17 at 08:38

Since you have everything containerized, it's way simpler.

Just set up a small healthcheck endpoint with Spring Web which serves to see if the server is still running, something like:

Source https://stackoverflow.com/questions/70378200

QUESTION

SwipeToDismiss inside LazyColumn with animation

Asked 2021-Nov-29 at 17:51

I am trying to achieve something like this but with Jetpack Compose. In other words swipe to delete like we could do in RecyclerView with ItemTouchHelper and class DiffCallBack : DiffUtil.ItemCallback() where we could see enter - exit animations and then the list moving gracefully up or down where the item has been inserted or removed.

This is what I have tried:

...

ANSWER

Answered 2021-Nov-29 at 17:51

Recently google anounced compose Version 1.1.0-beta03. Now we have a new way on how we can animate items. They have introduced a new modifier: Modifier.animateItemPlacement(). You may find latest compose version in this link.

I will try to post an example with minimum code so that you can reproduce it and see how you could achieve a SwipeToDismiss inside LazyColumn with animation.

Data Class To store information:

Source https://stackoverflow.com/questions/70066048

QUESTION

BackgroundService Graceful Shutdown - Complete work and write to DB

Asked 2021-Nov-22 at 12:57

I have a Background Worker implementing the BackgroundService (provided by MS).

See this simple implementation:

...

ANSWER

Answered 2021-Nov-22 at 11:24

It seems like the stoppingToken isn't cancelled as expected when the application shuts down. I managed to get around this using IHostApplicationLifetime and a new field where I can store if a shutdown is in progress.

Source https://stackoverflow.com/questions/70036809

QUESTION

Submitting multiple runs to the same node on AzureML

Asked 2021-Oct-29 at 13:08

I want to perform hyperparameter search using AzureML. My models are small (around 1GB) thus I would like to run multiple models on the same GPU/node to save costs but I do not know how to achieve this.

The way I currently submit jobs is the following (resulting in one training run per GPU/node):

...

ANSWER

Answered 2021-Oct-29 at 13:08

Use Run.create_children method which will start child runs that are “local” to the parent run, and don’t need authentication.

For AMLcompute max_concurrent_runs map to maximum number of nodes that will be used to run a hyperparameter tuning run. So there would be 1 execution per node.

single service deployed but you can load multiple model versions in the init then the score function, depending on the request’s param, uses particular model version to score. or with the new ML Endpoints (Preview). What are endpoints (preview) - Azure Machine Learning | Microsoft Docs

Source https://stackoverflow.com/questions/69751254

QUESTION

[HTCONDOR][kubernetes / k8s] : Unable to start minicondor image within k8s - condor_master not working

Asked 2021-Oct-12 at 09:51

POST EDIT

The issue is due to :

PSP (Pod security policy) By default escalation is not permit for my condor user. That is why it is not working. because the supervisord is running as root user and try to write logs and start condor collector as root and not as an other user (i.e condor)

Description

The mini-condor base image is not starting as expected on kubernetes rancher pod.

I am using :

This image : https://hub.docker.com/r/htcondor/mini In a custom namespace in rancher (k8s)

ps : the image was working perfectly on :

a local env

minikube default installation

I am running it as a simple deployment :

When the pod is starting, the Kubernetes default log file is displaying :

...

ANSWER

Answered 2021-Oct-11 at 15:29

Cause of the issue

The issue is due to :

PSP policy (Pod security policy) By default escalation is not permit for my condor user.

SOLUTION

THE BEST SOLUTION I found at the moment is to run EVERYTHING as condor user and give the permisssion to the condor users. To do so you need :

In the supervisord.conf : Run supervisor as condor user
In the supervisord.conf : run log and socket in /tmp
In the Dockerfile : Change the owner of most of folder by condor
In the deployment.yamlset the ID to 64 (condor user)

Dockerfile

Source https://stackoverflow.com/questions/69190926

QUESTION

Server shutdown never finishes

Asked 2021-Sep-23 at 10:39

i have asynchronous gRPC server (gRPC version 1.40.X, Windows 10 x64).

When i try to shutdown the server, sometime is shutdowns gracefully and other times the thread responsible for running the gRPC gets stuck while shutdown procedure has began. the more clients spam the server the more likely it's to happen.

My shutdown procedure:

Wait for the current Que->AsyncNext to finish
I call TryToCancel on any calls that has received the AsyncNotifyWhenDone, this could be causing the issue as i can't really call this on all calls as for some the AsyncNotifyWhenDone has not yet been recived, not sure how to approach this as calling finish() is done after GOT_EVENT
I call Server->Shutdown(), here it gets stuck and the thread hangs forever.
Then Que->Shutdown()
Then DrainQue() sync function that goes trough all the remaining calls with Que->Next
Clears all call data

Here is the last trace when it happens:

...

ANSWER

Answered 2021-Sep-22 at 11:36

After some digging i have found a solution, Shutdown() has two overloads, with deadline and without deadline, the one i have been using (without deadline) just waits forever, and the one with the deadline waits only the deadline time.

so my new shutdown looks like this:

Source https://stackoverflow.com/questions/69252458

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

Vulnerabilities

No vulnerabilities reported

Install grace

You can download it from GitHub.

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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