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<p>Kαλησπέρα,</p>
<p>Το paper που θα παρουσιαστεί στο αυριανό syscussion είναι:</p>
<b>Title:</b> Titian: Data Provenance Support in Spark<br>
<b>Authors:</b> Matteo Interlandi, Kshitij Shah, Sai Deep Tetali,
Muhammad Ali Gulzar, Seunghyun Yoo, Miryung Kim, Todd Millstein, and
Tyson Condie<br>
<b>Abstract:</b> Debugging data processing logic in Data-Intensive
Scalable Computing (DISC) systems is a difficult and time consuming
effort. Today’s DISC systems offer very little tooling for debugging
programs, and as a result programmers spend countless hours
collecting evidence (e.g., from log files) and performing trial and
error debugging. To aid this effort, we built Titian, a library that
enables data provenance—tracking data through transformations—in
Apache Spark. Data scientists using the Titian Spark extension will
be able to quickly identify the input data at the root cause of a
potential bug or outlier result. Titian is built directly into the
Spark platform and offers data provenance support at interactive
speeds—orders-of-magnitude faster than alternative solutions—while
minimally impacting Spark job performance; observed overheads for
capturing data lineage rarely exceed 30% above the baseline job
execution time.<br>
<br>
Παρουσιάστηκε στο VLDB 2016.<br>
<br>
Eύη<br>
<pre class="moz-signature" cols="72">--
Evdokia Kassela
PhD Candidate
Computing Systems Laboratory, School of ECE
National Technical University of Athens</pre>
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