.net core 发布linux报错“The configured user limit (128) on the number of inotify instances has been reached”
var builder = new ConfigurationBuilder()
.AddJsonFile($"appsettings.json", true, true);
You are creating file watchers, every time you access an setting. The 3rd parameter is reloadOnChange.
You have to make sure,
var configuration = builder.Build()
is only called once in your application and store it in a place where you can access it (preferably AVOID static fields for it).
Or just disable the file watcher.
var builder = new ConfigurationBuilder()
.AddJsonFile($"appsettings.json", true, false);
or cleaner:
var builder = new ConfigurationBuilder()
.AddJsonFile($"appsettings.json", optional: true, reloadOnChange: false);
Best way is to abstract hat behind an interface and use dependency injection.
public interface IConfigurationManager
{
T GetAppConfig<T>(string key, T defaultValue = default(T));
}
public class ConfigurationManager : IConfigurationManager
{
private readonly IConfigurationRoot config;
public ConfigurationManager(IConfigurationRoot config)
=> this.config ?? throw new ArgumentNullException(nameof(config));
public T GetAppConfig<T>(string key, T defaultValue = default(T))
{
T setting = (T)Convert.ChangeType(configuration[key], typeof(T));
value = setting;
if (setting == null)
value = defaultValue;
}
}
Then instantiate and register it
services.AddSingleton<IConfigurationManager>(new ConfigurationManager(this.Configuration));
and inject it into your services via constructor