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Showing posts from April, 2014

Add a attachment to CouchDB with play framework JavaAPI

I tired to write a rest API which act as a mediator between clients and CouchDB API. This was done using Playframework's Java API. I wrote the following controller method which takes a POST request which contains file name, content-type and file to be stored as parameters and send as a PUT request to CouchDB.


public static Result putAttachment(){ Http.MultipartFormData body = request().body().asMultipartFormData(); Http.MultipartFormData.FilePart picture = body.getFile("picture"); String fileName=null; String contentType=null; File file=null; if (picture != null) { fileName = picture.getFilename(); contentType = picture.getContentType(); file = picture.getFile(); } else { //TODO implement } String restServiceUrl = "http://127.0.0.1:5984/test/a/"+fileName; F.Promise<play.libs.WS.Response> future =play.libs.WS.url(restServiceUrl…

Fixing Error "Failed to load VMMR0.r0 (VERR_SUPLIB_WORLD_WRITABLE)" in Virtualbox

Recently I  to installed Oracle Virtualbox on my Ubuntu 12.04 computer to run Hortanworks sandbox. When I am trying to start the Sanbox it gave me an error like this.

Failed to load VMMR0.r0 (VERR_SUPLIB_WORLD_WRITABLE).
Unknown error creating VM (VERR_SUPLIB_WORLD_WRITABLE).

What it says is /usr/bin forlder is world writable. Usually this is not world writable. But somehow I have unintentionally changed the permissions. I fixed this using the following command.

chmod o-w /usr/bin