Return-Path: Delivered-To: apmail-lucene-hadoop-commits-archive@locus.apache.org Received: (qmail 62500 invoked from network); 22 Sep 2007 07:35:54 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.2) by minotaur.apache.org with SMTP; 22 Sep 2007 07:35:54 -0000 Received: (qmail 16712 invoked by uid 500); 22 Sep 2007 07:35:45 -0000 Delivered-To: apmail-lucene-hadoop-commits-archive@lucene.apache.org Received: (qmail 16682 invoked by uid 500); 22 Sep 2007 07:35:45 -0000 Mailing-List: contact hadoop-commits-help@lucene.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: hadoop-dev@lucene.apache.org Delivered-To: mailing list hadoop-commits@lucene.apache.org Received: (qmail 16673 invoked by uid 99); 22 Sep 2007 07:35:45 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Sat, 22 Sep 2007 00:35:45 -0700 X-ASF-Spam-Status: No, hits=-100.0 required=10.0 tests=ALL_TRUSTED X-Spam-Check-By: apache.org Received: from [140.211.11.130] (HELO eos.apache.org) (140.211.11.130) by apache.org (qpsmtpd/0.29) with ESMTP; Sat, 22 Sep 2007 07:37:48 +0000 Received: from eos.apache.org (localhost [127.0.0.1]) by eos.apache.org (Postfix) with ESMTP id 4BB0959A07 for ; Sat, 22 Sep 2007 07:35:22 +0000 (GMT) Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit From: Apache Wiki To: hadoop-commits@lucene.apache.org Date: Sat, 22 Sep 2007 07:35:22 -0000 Message-ID: <20070922073522.25366.25970@eos.apache.org> Subject: [Lucene-hadoop Wiki] Trivial Update of "FAQ" by Arun C Murthy X-Virus-Checked: Checked by ClamAV on apache.org Dear Wiki user, You have subscribed to a wiki page or wiki category on "Lucene-hadoop Wiki" for change notification. The following page has been changed by Arun C Murthy: http://wiki.apache.org/lucene-hadoop/FAQ The comment on the change is: Improved section on ways to incorporate non-Java code to use Hadoop ------------------------------------------------------------------------------ == 4. Do I have to write my application in Java? == - No. There are several ways to incorporate non-Java code. HadoopStreaming permits any shell command to be used as a map or reduce function, and Hadoop is also developing [http://svn.apache.org/viewvc/lucene/hadoop/trunk/src/c%2B%2B/ C and C++ APIs] and a [http://www.swig.org/ SWIG]-compatible [http://issues.apache.org/jira/browse/HADOOP-234 pipes] API. + No. There are several ways to incorporate non-Java code. + * HadoopStreaming permits any shell command to be used as a map or reduce function. + * [http://svn.apache.org/viewvc/lucene/hadoop/trunk/src/c%2B%2B/libhdfs libhdfs], a JNI-based C API for talking to hdfs (only). + * [http://lucene.apache.org/hadoop/api/org/apache/hadoop/mapred/pipes/package-summary.html Hadoop Pipes], a [http://www.swig.org/ SWIG]-compatible C++ API (non-JNI) to write map-reduce jobs. == 5. How can I help to make Hadoop better? ==