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Questions tagged [swarm]

Swarm is a web-based code review and collaboration tool for Perforce.

320 questions
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Accessing docker compose arm variable in Docker file

My Docker compose file is as follows environment: external: name: dev services: app: deploy: replicas: 1 environment: NODE_ENV: development Compose Swarm is as follows: version: "3.3" services: …
user11380842
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Flink TaskManager Docker Swarm doesn't recover

I'm Running a Flink v1.10 with 1 JobManager and 3 Taskmanagers in Docker Swarm, without Zookeeper. I've a Job running taking 12 Slots and i've 3 TM's with 20 Slots each (60 total). After some tests everything went well except one test. So, the test…
Andre Carvalho
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Is it possible for multiple Docker Swarm Services to access an env_file that is located on a volume mount?

I am trying to use a single env_file in multiple Docker Swarm Services. The volume mount point and file are available in the container. I validated it by logging into the running container. As soon as I deploy the stack's .yml file I receive an…
Jabb
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No overlay network created on worker node during docker swarm stack deploy

I have Docker swarm cluster with overlay network (name overlay-test) with single-manager and 2 worker nodes. One of worker node contains only database server container. When I deploy stack on cluster and my stack doesn't contains instructions to…
Alexey Shcheglov
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Distributed Java App on Docker Swarm with Multithreading

I am migrating a Grails (2.4.4) web application (Java based) on a Docker Swarm environment (3 nodes) with a MariaDB database outside the Swarm. On its current version, the application is hosted on a single server and instanciates a few threads (~…
Alarid
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While draining a node during a Swarm update, how do you avoid a newly active node to receive all the rescheduled containers?

During an update (in place in this case) of our Swarm, we have to drain a node, update it, make it active again, drain the following node, etc... It works perfectly for the first node as the load of the containers to reschedule is spread quite…
tbrouhier
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Docker Swarm - communicate between two containers?

I created docker-compose.yml which works on my computer (local) but not work on server (docker swarm, portainer). Container nginx can`t see php-fpm. docker-compose.yml: version: "3" services: nginx: image: nginx-php-test:8 ports: -…
Arkadiusz G.
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Docker suddenly removing volume when adding network to container

I have database container in swarm network. It has its own node and it is not changing. The unexpected behavior has started when I add or remove some network for my db container: For example, I added traefik network: my_db: volumes: …
Eddie
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Wordpress Docker: Error establishing DB connection (MYSQL)

I have been watching this before. Moving Wordpress site to Docker: Error establishing DB connection My Linux is centos VM, I try to create WordPress and MySQL(5.6~8). It will be created but I can not connect DB. This is my command (using…
MAX
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How to run Swarm Optimization in a function presented in the same script

I want to run Swarm optimization with a function written in the same script. rng default % For reproducibility nvars = 2; x = particleswarm(fun,nvars) function val = fun(x) val=x(1)*exp(x(2)); end When I run this script the promp windows shows…
JuanMuñoz
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How to use Particle Swarm Optimization in the norm of a matrix

I have the following code implementing PSO, but it is not working with the simple function: norm(A), where A is a matrix. This is the code, fun=@(X) norm([X(1,1),X(1,2); X(2,1), X(2,2)]); rng default % For reproducibility lb = [-10,-15]; ub =…
JuanMuñoz
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How to add a new node to a mongodb replica set in docker swarm (docker compose 3.4)

I'm trying to intialize a mongo replica set mode and add two nodes(swarm services) to it, I'm using docker-compose 3.4 I'm using a script shell that I execute on an ansible playbook (version 2.7.10) The following pieces of code are respectively the…
Samira
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Can anyone identify the errors in Hybrid GA PSO code in matlab?

Index exceeds matrix dimensions. Error in gapso_logic>update_lbest (line 103) sm(1, 1)= cost_p(1, nPopSize); Error in gapso_logic (line 46) local_best_position = update_lbest(current_fitness(i), local_best_position, nPopSize); Error in…
Satyam Sharma
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Docker swarm load balancing using HTTP 503

For a project, I would like to create a docker swarm with nodes/replicas using GPUs. Since the default way to do load balancing is round robin (and according to this link load balancing takes place on TCP layer 4), I would like to know if it is…
x y
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Docker swarm worker advertise wrong local address on EC2

I have a manager node with a fixed ip address, and when I join the swarm with a worker on EC2, I can see in the docker logs that the manager tries to connect to the internal ip address of the EC2 instance. According to docker, this should not happen…
likoko
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