While most users already have tools to test and debug the correct- ness of their SQL queries or ... in debugging the per
Dec 1, 2013 - a National Key Laboratory for Novel Software Technology, Nanjing University, 163 Xianlin Road, Nanjing, 210023, China ...... pass analytics using MapReduce, in: Proceedings of the 2011 ACM SIGMOD ... [20] S. Seo, et al.
API reference for unintended behaviors, and write test cases to see why ... The Java SDK comes with the jstat utility to
effective software development (Armbrust et al., 2010). Major Internet .... Comparison of 3 MapReduce Implementations: Google, Phoenix and Hadoop. Google.
... Department of Computer. Science, College of William and Mary, Williamsburg, VA 23187, USA. ... Zhuoyao Zhang is with the Department of Computer Science, University ...... [28] J. Polo et al., âPerformance management of accelerated mapreduce wor
task, contextual, and adaptive performance; and task and contextual performance can be separated empirically (Griffin et aI.,. 2000, Motowidlo and Van Scotter, ...
Breast Cancer. Screening. NQF 2372 ... screening for colorectal cancer. x x x x. Controlling High Blood. Pressure ... Pa
{zhguo, gcf}@cs.indiana.edu .... Tracker that runs on the master node manages all slave ... which is a best practice recommended by Hadoop ..... [Online]. Available: http://portal.acm.org/citation.cfm?id=1855744. [6] X. Qiu, J. Ekanayake, ...
in supporting easy programming, data distribution, as well as fault tolerance. Failure ... Failures (MTBF) of each process, failure recovery cost, etc. The rest of this ...
for parallel data processing in high-performance cluster computing ... proven to be high, because a job in the MapReduce model ..... computing-ratio information. The data ..... processing from Wuhan University of Technology (WUT) in.
for executing MapReduce job with remote data, which improved the performance by. 30% over ..... In this case too, the tasktracker will mark this task as failed and ... circular buffer while the thread writes data to the local hard drive. ..... file,
foundation of data protection for reliable and secure cloud environments comes at a high cost as data size increases, presenting an obstacle to provision of big ...
of AES encryption in the cloud and recent developments in ... that the GPU performs best using large packet sizes and thus it suits applications that require bulk ...
Department of Computer Science and Software Engineering. Auburn University ...... Jiong Xie received the BS and MS degrees in computer science from BUAA ...
KEYWORDS. Big Data, Hadoop, MapReduce, NoSQL, Data Management. 1. .... [2] built PACMan, an input data caching service that coordinates access to the ...
We identified five fundamental characteristics which define the performance of MapReduce ap- plications. We then created five separate bench- mark tests, each ...
family of analytics applications from processing log data files. Indeed, log data files are commonplace in many Internet- based systems and applications, ...
brief overview of MapReduce, Twister and the FutureGrid. We report the results from our experimental study and the observations from the result of our ...
terprise for advanced data analytics, business intelligence, and enabling new applications associated with data retention, reg- ulatory compliance, e-discovery ...
For example, the rescheduling of the failed or slow tasks is decided by the scheduler at runtime with the consideration of data locality. In this paper, we propose ...
Keywords: software performance, Hadoop, MapReduce, cluster monitoring. 1. ..... Ganglia service call to get metrics in JSON format over the time range of a ...
Oregon State University. Corvalis ... time, there are fewer than a dozen companies producing HPC machines and they compete within a relatively ... was decided that the first version should define a standard command-based (i.e., non-graphical) interfa
Advanced Features in Scalable Table Stores. Swapnil Patil1, Milo Polte1, ... D.2.5 [Software Engineering]: Testing and Debuggingâ testing tools, diagnostics.
1 Introduction. With thousands of ... supplies functions to start tasks in parallel across this virtual machine, allows these tasks to send .... the following views will be added: message queues, network tra c/hot spots, and hierarchical ... Visualiz
This data includes web crawls, search logs, click streams, network monitoring logs, and others. At the same time, tools
PerfXplain: Debugging MapReduce Job Performance Nodira Khoussainova, Magdalena Balazinska, and Dan Suciu Department of Computer Science and Engineering, University of Washington, Seattle, WA, USA {nodira, magda, suciu}@cs.washington.edu
ABSTRACT While users today have access to many tools that assist in performing large scale !#$"
