Я создаю новое приложение Sails.js, которое подключается к базе данных PostgreSQL. Приложение раньше нормально работало, пока я не создал новую модель, используя sails generate model products
. Теперь я сталкиваюсь со следующей ошибкой при попытке запуска приложения:
server_1 | [nodemon] starting `node app.js`
server_1 | info: ·• Auto-migrating... (alter)
server_1 | info: Hold tight, this could take a moment.
server_1 | Troubleshooting tips:
server_1 |
server_1 | -> Is your Postgresql configuration correct? Maybe your `poolSize` configuration is set too high? e.g. If your Postgresql database only supports 20 concurrent connections, you should make sure you have your `poolSize` set as something < 20 (see http://stackoverflow.com/a/27387928/486547). The default `poolSize` is 10. To override default settings, specify the desired properties on the relevant Postgresql "connection" config object where the host/port/database/etc. are configured. If you're using Sails, this is generally located in `config/datastores.js`, or wherever your environment-specific database configuration is set.
server_1 |
server_1 | -> Maybe your `poolSize` configuration is set too high? e.g. If your Postgresql database only supports 20 concurrent connections, you should make sure you have your `poolSize` set as something < 20 (see http://stackoverflow.com/a/27387928/486547). The default `poolSize` is 10.
server_1 |
server_1 | -> Do you have multiple Sails instances sharing the same Postgresql database? Each Sails instance may use up to the configured `poolSize` # of connections. Assuming all of the Sails instances are just copies of one another (a reasonable best practice) we can calculate the actual # of Postgresql connections used (C) by multiplying the configured `poolSize` (P) by the number of Sails instances (N). If the actual number of connections (C) exceeds the total # of **AVAILABLE** connections to your Postgresql database (V), then you have problems. If this applies to you, try reducing your `poolSize` configuration. A reasonable `poolSize` setting would be V/N.
В ответ на эту ошибку я добавил ключ poolSize
в свой файл datastores.js, например:
module.exports.datastores = {
default: {
adapter: 'sails-postgresql',
url: 'postgresql://postgres@postgresql:5432/web-service',
poolSize: 1
},
};
По-прежнему выдает ту же ошибку. И приложение, и база данных работают в среде Docker. Вот как выглядит мой docker-compose.yml:
version: '3.4'
services:
server:
image: web-service
build: .
environment:
NODE_ENV: development
IS_DEV_MACHINE: "yes"
ports:
- 1338:1337 # HOST_PORT is 1338 to avoid conflicts with other Sails.js apps running on host
volumes:
- ../:/usr/src/app
entrypoint: nodemon
postgresql:
image: bitnami/postgresql:9.6
ports:
- 5433:5432 # HOST_PORT is 5433 to avoid conflicts with other PostgreSQL instances running on host
volumes:
- ../database:/bitnami
Кажется, я нигде не могу найти решение этой проблемы. Другие темы StackOverflow на эту тему не отвечали более года. Любая помощь приветствуется.