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How to list all available Kafka brokers in a cluster?

This command will give you the list of the active brokers between brackets:

Reference: http://help.2checkout.com/articles/Knowledge_Article/Error-Code-PE102 Sellers as well as buyers may receive the message ERROR CODE PE102 for several reasons, outlined below: All Parameter Sets: Account is not approved to sell. Account has been closed. Nonexistent seller, or an invalid value for “sid” or “x_login” was passed in.

HTTP status code 0 – Error Domain=NSURLErrorDomain?

There is no HTTP status code 0. What you see is a 0 returned by the API/library that you are using. You will have to check the documentation for that.

Solr: how to delete a collection?

Go to the solr folder and Do this.. and restart solr with

What standard do language codes of the form “zh-Hans” belong to?

The current reference for identifying languages is IETF BCP 47, which combines IETF RFC 5646 and RFC 4647. Codes of the form ll-Xxxx combine an ISO 639-1 language code (two letters) and an ISO 15924 script code (four letters). BCP 47 recommends that language codes be written in lower case and that script codes be written “lowercase with the initial letter capitalized”, but … Read more

The correct way to read a data file into an array

Just reading the file into an array, one line per element, is trivial: Now the lines of the file are in the array @lines. If you want to make sure there is error handling for open and close, do something like this (in the snipped below, we open the file in UTF-8 mode, too):

Error: You need to include some adapter that implements karma.start method

It does seem like this is a very general error, however in my case the problem was either that I didn’t run karma start from the correct folder, or that I didn’t restart it after changing the configuration. I’ll leave this question open and hopefully it can become a resource for others who experience this error message.

A _disk_id.pod file appears on a windows flash drive

_disk_id.pod is created by Windows Live Movie Maker. I had accidentally changed my “choose default program …” settings which was causing the video files to open with the Windows Live Movie Maker program. Even if you do not do anything with the video in the Movie Maker program or save anything in it the program … Read more

Empty functions in Javascript

I don’t know what jsLint thinks but if this is a problem and you need a solution then you can do something like the following: Update : I think, Bergi‘s guess is right because, on the jslint site in the Required Blocks section : JSLint expects that if, while, do and for statements will be made with blocks {that is, with statements enclosed … Read more

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Printing a 2D array in C