After asking the question with more thought I'm leaning to an opposing view. See HBASE-6193. Other points of view are welcome.
On Sun, May 27, 2012 at 1:50 AM, Ulrich Staudinger <[email protected]> wrote: > hi there, > > just some two cent from my side. first of all, it is a great idea. in > the activequant master server, i also embed a simple jetty server that > answers requests for domain specific data over plain http. tools like > R or matlab prefer to receice plain csv data instead of json. > particularly for fetching large amounts of data, the protocol overhead > of json is immense. second, these tools can easily parse csv, as can > excel, qlikview or other usual end user tools. > > so, i suggest to think about two questions: > > 1) what are the use cases > 2) what's the output format. > > on (2), i suggest to implement it in a flexible way, so that we can, > for example, implement a specific interface and have a new output and > input format writer implementation. > > if anyone starts a wiki page somewhere, i would be happy to review and > contribute some use cases along with descriptions. > > +1. > > > cheers, > ulrich > > > -- > connect on xing or linkedin. sent from my tablet. > > On 27.05.2012, at 02:18, Andrew Purtell <[email protected]> wrote: > >> On May 26, 2012, at 3:33 PM, Stack <[email protected]> wrote: >> >>> On Sat, May 26, 2012 at 2:54 PM, Andrew Purtell >>> <[email protected]> wrote: >>>> Perhaps it's time to consider consolidating these interfaces on a single >>>> port, where they differ, and more generally re-embed REST into the >>>> processes, like the recent Thrift server embedding in the RS? This would >>>> be a new alternative to the current REST gateway that would function more >>>> like HDFS httpfs: a client can contact any RS with a RESTful operation on >>>> a table, and it will be redirected via the HTTP standard mechanism to the >>>> RS actually hosting the target region. And beside such a client API, these >>>> admin functions like 4368 and the JMX export over HTTP we inherit from >>>> Hadoop core. >>>> >>> >>> An integrated REST server could answer questions about the >>> regionserver it was on. It could return list of regions and metrics >>> for the server. +1. >>> >>> Would the REST server above that answer queries on the regionserver be >>> the same as the REST server that we currently have which fields >>> queries against hbase tables? They seem to be different things? >> >> If there is an embedded REST server in every RS it could serve admin >> interfaces, or client interfaces, or both. There doesn't necessarily need be >> a separate REST gateway, though having one makes sense. Asking the question. >> >> - Andy
