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[PIG-3865] Remodel the XMLLoader to work to be faster and more maintainable - Pig - [issue]
...I recreated the XMLLoader in PiggyBank to work line by line instead of character by character. This makes it more efficient as it uses precompiled regular expressions on each line instead of...
http://issues.apache.org/jira/browse/PIG-3865    Author: Ahmed Eldawy, 2014-05-04, 18:09
[PIG-3373] XMLLoader returns non-matching nodes when a tag name spans through the block boundary - Pig - [issue]
...When node start tag spans two blocks this tag is returned even if it is not of the type.Example: For the following input file<event id="3423"><ev-------- BLOCK BOUNDARYentually id="...
http://issues.apache.org/jira/browse/PIG-3373    Author: Ahmed Eldawy, 2014-05-04, 18:09
Error starting hadoop-2.2.0 - HDFS - [mail # user]
...Hi,  I've been using Hadoop 1.x for a few months and it was working fine. Now, I want to migrate to hadoop-2.x but I'm having troubles starting it. In Hadoop 1.x, I used to configure co...
   Author: Ahmed Eldawy, 2013-12-12, 07:52
[PIG-3304] XMLLoader in piggybank does not work with inline closed tags - Pig - [issue]
...The XMLLoader fails to return elements when tags are closed inline such as<event id="342"/>...
http://issues.apache.org/jira/browse/PIG-3304    Author: Ahmed Eldawy, 2013-10-14, 17:46
Which InputFormat to use? - MapReduce - [mail # user]
...Hi I'm developing a new set of InputFormats that are used for a project I'm doing. I found that there are two ways to create  a new InputFormat. 1- Extend the abstract class org.apache....
   Author: Ahmed Eldawy, 2013-07-04, 18:29
[expand - 1 more] - Re: A UDF that is both Algebraic and Accumulator - Pig - [mail # user]
...I wrote a function that is both Algebraic and Accumulator. I tested it on a small dataset and it used only the algebraic interface. When I removed the statements "implemented Algebraic" and ...
   Author: Ahmed Eldawy, 2013-06-04, 18:59
[PIG-3344] Add a spatial datatype to Pig - Pig - [issue]
...This issue is about adding a new datatype to Pig that abstracts a spatial attribute. Following OGC http://www.opengeospatial.org/, we will add a new datatype called 'Geometry' that abstracts...
http://issues.apache.org/jira/browse/PIG-3344    Author: Ahmed Eldawy, 2013-06-03, 18:19
[expand - 7 more] - Re: A major addition to Pig. Working with spatial data - Pig - [mail # dev]
...I've just created a new JIRA issue for the spatial functionality. https://issues.apache.org/jira/browse/PIG-3344 This issue is all about the new datatype which is the only thing that needs t...
   Author: Ahmed Eldawy, 2013-06-03, 17:26
[expand - 1 more] - Re: Hadoop running the incorrect class - MapReduce - [mail # user]
...Thanks Harsh. JarFinder helped me locating the guilty jar file. It was in the hadoop class path indeed but I didn't think it has a copy of the main class. Thanks for your help.  Ahmed &...
   Author: Ahmed Eldawy, 2013-05-17, 00:08
[expand - 1 more] - Re: Ordered partitioned data - Pig - [mail # user]
...Thanks Cheolsoo for your help. I'm still learning Pig and I didn't know about this nested structure. I'll try it and see how much performance I gain compared to my naive implementation. &nbs...
   Author: Ahmed Eldawy, 2013-05-13, 19:21
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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB