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How to make Java honor the DNS Caching Timeout?
We use GSLB for geo-distribution and load-balancing. Each service is assigned a fixed domain name. Through some DNS magic, the domain name is resolved into an IP that's closest to the server with least load. For the load-balancing to work, the application server needs to honor the TTL from DNS respo...
What is an Intent in Android?
...basically a message that is passed between components (such as Activities, Services, Broadcast Receivers, and Content Providers). So, it is almost equivalent to parameters passed to API calls. The fundamental differences between API calls and invoking components via intents are:
API calls are synch...
What is Node.js? [closed]
...the log directory, recycling dead workers, etc. For a "serious" production service, you also need to be prepared to throttle incoming connections and do all the stuff that Apache does for PHP. To be fair, Ruby on Rails has this exact problem. It is solved via two complementary mechanisms: 1) Putting...
getApplication() vs. getApplicationContext()
...a satisfying answer to this, so here we go: what's the deal with Activity/Service.getApplication() and Context.getApplicationContext() ?
...
How do streaming resources fit within the RESTful paradigm?
With a RESTful service you can create, read, update, and delete resources. This all works well when you're dealing with something like a database assets - but how does this translate to streaming data? (Or does it?) For instance, in the case of video, it seems silly to treat each frame as resource...
Spring Boot - inject map from application.yml
... configuration for other OAuth providers. I want to inject this map into a service that will initialize services based on the configuration provided in this yaml file. My initial implementation was:
@Service
@ConfigurationProperties(prefix = 'oauth')
class OAuth2ProvidersService implements Initiali...
How to get config parameters in Symfony2 Twig Templates
...
You can also take advantage of the built-in Service Parameters system, which lets you isolate or reuse the value:
# app/config/parameters.yml
parameters:
ga_tracking: UA-xxxxx-x
# app/config/config.yml
twig:
globals:
ga_tracking: "%ga_tracking%"
Now...
How to $http Synchronous call with AngularJS
...er is true):
xhr.open(method, url, true);
You'd need to write your own service that did synchronous calls. Generally that's not something you'll usually want to do because of the nature of JavaScript execution you'll end up blocking everything else.
... but.. if blocking everything else is actu...
Getting error: Peer authentication failed for user “postgres”, when trying to get pgsql working with
... to restart your PostgreSQL server. If you're on Linux, that would be sudo service postgresql restart.
These are brief descriptions of both options according to the official PostgreSQL docs on authentication methods.
Peer authentication
The peer authentication method works by obtaining the cli...
Differences between .NET 4.0 and .NET 4.5 in High level in .NET
...4.6.2 and notice it still references mscorlib 4.0, System.Data 4.0, System.ServiceModel 4.0 ... etc. All the references are still 4.0.
– xr280xr
Jan 7 '19 at 19:30
...