Big Telco, Bigger DW Demands: Moving Towards SQL-on …
嚜濁ig Telco, Bigger DW Demands:
Moving Towards SQL-on-Hadoop
Keuntae Park
? IT Manager of SK Telecom, South Korea*s largest
wireless communications provider
? Work on commercial products (~*12)
每 T-FS: Distributed File System
每 Windows compatible layer on TimOS
每 T-MR: on-demand MapReduce service like E-MR
? Open source activity (&13~)
每 Committer of Apache Tajo project
Overview
? Background
每 Telco requirements
? Before Tajo
每 Commercial product
每 Open source (Hadoop) outsourcing
? After Tajo
每 Issues & solutions
每 Performance
? win-win between community and company
? Future Works
Telco data characteristics
? Huge amount of data
每 40 TB/day (compressed)
每 15 PB (estimated, end of 2014)
? Report & OLAP ad-hoc query
每 Filtering
每 Summary
每 BI tools
Requirements - different size, different speed
Filtering &
aggregation
Summary
Data reconstruction
Target
accumulated
for 5 minutes
daily sum of
filtered data
entire
mart data
summary data
summary data
Frequency
every 5
minutes
daily or
monthly
non-regularly
(rare)
ah-hoc
ah-hoc
Amount of
data
terabytes
hundreds of
terabytes
petabytes
tens of
gigabytes
tens of
terabytes
Response
time
within a
minute
within a hour
no strict
deadline
within two
seconds
within a hour
BI report
Ad-hoc Query
................
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