purpose of Funnel in NiFi

Well, imagine having 20 of those GenerateFlowFile processors. Imagine having to replace the LogAttribute processor with a different processor. It would be a hard job doing this since they are connected directly to the LogAttribute processor. However, if you had a Funnel between them, you would only need to replace the destination of the Funnel and not all of the processors. … Read more

Adding a user on .htpasswd

Exact same thing, just omit the -c option. Apache’s docs on it here. htpasswd /etc/apache2/.htpasswd newuser Also, htpasswd typically isn’t run as root. It’s typically owned by either the web server, or the owner of the files being served. If you’re using root to edit it instead of logging in as one of those users, … Read more

XAMPP: Connecting to localhost fix? [Persistent]

I just installed XAMPP Windows 1.8.2 in my computer. Port 80 is secured and in use by Apache there are no problems nor any port conflicts. I always open Xampp and start both Apache and MySQL Modules in the control panel. Both modules are running, Whenever I click on the Apache admin button it redirects … Read more

What is HTTPD exactly?

Apache HTTPD is an HTTP server daemon produced by the Apache Foundation. It is a piece of software that listens for network requests (which are expressed using the Hypertext Transfer Protocol) and responds to them. It is open source and many entities use it to host their websites. Other HTTP servers are available (including Apache Tomcat which is designed for running server side programs … Read more

The value of “spark.yarn.executor.memoryOverhead” setting?

Is just the max value .The goal is to calculate OVERHEAD as a percentage of real executor memory, as used by RDDs and DataFrames controls the executor heap size, but JVMs can also use some memory off heap, for example for interned Strings and direct byte buffers. The value of the spark.yarn.executor.memoryOverhead property is added to the … Read more

Enable PHP Apache2

You can use a2enmod or a2dismod to enable/disable modules by name. From terminal, run: sudo a2enmod php5 to enable PHP5 (or some other module), then sudo service apache2 reload to reload the Apache2 configuration

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)