Big Data: tools and techniques for working with large data sets

Big Data: tools and techniques for working  with large data sets Ian Stokes‐Rees, PhD Harvard Medical School, Boston, USA Workshop on Tools, Technologies and Collaborative Opportunities for HPC in Life Sciences and Healthcare http://portal.sbgrid.org ijstokes@hkl.hms.harvard.edu

Slides and Contact ijstokes@hkl.hms.harvard.edu http://linkedin.com/in/ijstokes http://slidesha.re/ijstokes-thailand2011Big Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Slides and Contact ijstokes@hkl.hms.harvard.edu http://linkedin.com/in/ijstokes http://slidesha.re/ijstokes-thailand2011 http://www.sbgrid.org http://portal.sbgrid.org http://www.opensciencegrid.orgBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

About MeBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

rotational translation 2D simple crystal Patterson map search search score model: aggregatebest peak, R factor, alternatives composites and cluster electron densityBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Protein Structure StudiesBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Big Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Data, Data Everywhere ...Big Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Data, Data Everywhere ... • We are being overwhelmed with dataBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Data, Data Everywhere ... • We are being overwhelmed with data • high temporal resolution due to fast electronicsBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Data, Data Everywhere ... • We are being overwhelmed with data • high temporal resolution due to fast electronics • high spatial resolution due to advanced imaging  techniquesBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Data, Data Everywhere ... • We are being overwhelmed with data • high temporal resolution due to fast electronics • high spatial resolution due to advanced imaging  techniques • high dimensional dataBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Data, Data Everywhere ... • We are being overwhelmed with data • high temporal resolution due to fast electronics • high spatial resolution due to advanced imaging  techniques • high dimensional data • large data setsBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Data, Data Everywhere ... • We are being overwhelmed with data • high temporal resolution due to fast electronics • high spatial resolution due to advanced imaging  techniques • high dimensional data • large data sets • simulationBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Data, Data Everywhere ... • We are being overwhelmed with data • high temporal resolution due to fast electronics • high spatial resolution due to advanced imaging  techniques • high dimensional data • large data sets • simulation • modelingBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Data, Data Everywhere ... • We are being overwhelmed with data • high temporal resolution due to fast electronics • high spatial resolution due to advanced imaging  techniques • high dimensional data • large data sets • simulation • modeling • It is easy to drown in the Olood of dataBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Data, Data Everywhere ... • We are being overwhelmed with data • high temporal resolution due to fast electronics • high spatial resolution due to advanced imaging  techniques • high dimensional data • large data sets • simulation • modeling • It is easy to drown in the Olood of data • storage issues ‐ capacityBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Data, Data Everywhere ... • We are being overwhelmed with data • high temporal resolution due to fast electronics • high spatial resolution due to advanced imaging  techniques • high dimensional data • large data sets • simulation • modeling • It is easy to drown in the Olood of data • storage issues ‐ capacity • ownership issues ‐ security and collaborationBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Data, Data Everywhere ... • We are being overwhelmed with data • high temporal resolution due to fast electronics • high spatial resolution due to advanced imaging  techniques • high dimensional data • large data sets • simulation • modeling • It is easy to drown in the Olood of data • storage issues ‐ capacity • ownership issues ‐ security and collaboration • provenance ‐ origin, access, changesBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Data, Data Everywhere ... • We are being overwhelmed with data • high temporal resolution due to fast electronics • high spatial resolution due to advanced imaging  techniques • high dimensional data • large data sets • simulation • modeling • It is easy to drown in the Olood of data • storage issues ‐ capacity • ownership issues ‐ security and collaboration • provenance ‐ origin, access, changes Today, we’ll think about software, hardware, and  models for coping with large quantities of dataBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Next Generation SequencingBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

High Energy PhysicsBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

40 MHz bunch crossing rate 10 million data channels 1 KHz level 1 event recording rate 110 MB per event 14 hours per day, 7+ months / year 4 detectors 6 PB of data / year globally distribute data for analysis (x2)Big Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Molecular Dynamics SimulationsBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Molecular Dynamics Simulations 1 fs time step 1ns snapshot 1 us simulation 1e6 steps 1000 frames 10 MB / frame 10 GB / sim 20 CPUyears 3 months (wall clock)Big Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Electronic Patient RecordsBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Electronic Patient Records 77 page PDF (bespoke report)Big Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Electronic Patient Records Clinical Document Architecture XML representationBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Electronic Patient Records HTML rendering of XML via XSLT transformBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Clinical Imaging Data DICOM  Digital Imaging and  Communications in Medicine 2D, 3D, 4DBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Clinical Imaging DataBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

It is clear there is no shortage of data.Big Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

It is clear there is no shortage of data. Potential for great new insights ...Big Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

It is clear there is no shortage of data. Potential for great new insights ... ... if we can organize, access, share, and  analyze this data ef[icientlyBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Jumping to the end ...Big Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Jumping to the end ... • Data can empower rather than overwhelm you • but this requires thought and planningBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Jumping to the end ... • Data can empower rather than overwhelm you • but this requires thought and planning • Understand your data sourcesBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Jumping to the end ... • Data can empower rather than overwhelm you • but this requires thought and planning • Understand your data sources • Understand your data consumersBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Jumping to the end ... • Data can empower rather than overwhelm you • but this requires thought and planning • Understand your data sources • Understand your data consumers • Educate yourself on available tools and technologyBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Jumping to the end ... • Data can empower rather than overwhelm you • but this requires thought and planning • Understand your data sources • Understand your data consumers • Educate yourself on available tools and technology • Design your data management system suitablyBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Problems arising from “Big Data”Big Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Problems arising from “Big Data” • Where to storeBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Problems arising from “Big Data” • Where to store • How to storeBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Problems arising from “Big Data” • Where to store • How to store • How to processBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Problems arising from “Big Data” • Where to store • How to store • How to process • Organization, searching,  and meta‐dataBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Problems arising from “Big Data” • Where to store • How to store • How to process • Organization, searching,  and meta‐data • How to manage accessBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Problems arising from “Big Data” • Where to store • How to store • How to process • Organization, searching,  and meta‐data • How to manage access • How to copy, move, and  backupBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Problems arising from “Big Data” • Where to store • How to store • How to process • Organization, searching,  and meta‐data • How to manage access • How to copy, move, and  backup • ProvenanceBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Problems arising from “Big Data” • Where to store • How to store • How to process • Organization, searching,  and meta‐data • How to manage access • How to copy, move, and  backup • Provenance • LifecycleBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Where to store (I)Big Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Where to store (I) • RAM • fast • expensive • volatileBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Where to store (I) • RAM • fast • local disk • expensive • get a good controller (SATA/SAS2) • volatile • lots of fast spinning disk (7200+ rpm) • high bandwidth possible • good Oirst stop for data • hard to share, persist, backup • SSD good for random reads: lots of small  Oiles, unpredictable I/O patterns • large Oiles, sequential I/O, spinning disk  comparable to SSDsBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Where to store (I) • RAM • fast • local disk • expensive • get a good controller (SATA/SAS2) • volatile • lots of fast spinning disk (7200+ rpm) • high bandwidth possible • good Oirst stop for data • hard to share, persist, backup • Parallel Filesystem • SSD good for random reads: lots of small  • gluster, luster, gpfs Oiles, unpredictable I/O patterns • HDFS (Hadoop) • large Oiles, sequential I/O, spinning disk  • auto‐replication for parallel  comparable to SSDs decentralized I/OBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Where to store (II)Big Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Where to store (II) • SAN with high performance  interconnect • Storage Area Network • fully managed data storage • Oiber channel (2 Gb/s) or InOiniband  (10,20,40 Gb/s) interconnect • parallel, non‐blocking, dedicated  routesBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Where to store (II) • SAN with high performance  interconnect • Storage Area Network • fully managed data storage • NAS over ethernet • Oiber channel (2 Gb/s) or InOiniband  • Network Attached Storage (10,20,40 Gb/s) interconnect • Think NFS, CIFS, Samba network  • parallel, non‐blocking, dedicated  interface to storage routes • ethernet 1 Gb/s with contention  (effective limit of ~500 Mb/s) • SATA (10k rpm, 2 TB, 3 Gb/s) • SAS2 (15k rpm, 750 GB, 6 Gb/s) • Cloud storage • Amazon S3 • Box.net, Dropbox • BackBlaze: bit.ly/backblaze‐20Big Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Where to store (II) • SAN with high performance  interconnect • Storage Area Network • fully managed data storage • NAS over ethernet • Oiber channel (2 Gb/s) or InOiniband  • Network Attached Storage (10,20,40 Gb/s) interconnect • Think NFS, CIFS, Samba network  • parallel, non‐blocking, dedicated  interface to storage routes • ethernet 1 Gb/s with contention  (effective limit of ~500 Mb/s) • SATA (10k rpm, 2 TB, 3 Gb/s) • Hybrid • SAS2 (15k rpm, 750 GB, 6 Gb/s) • Create in‐house tiered storage • Cloud storage • Amazon S3 • Box.net, Dropbox • BackBlaze: bit.ly/backblaze‐20Big Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

How to store (data formats) • ASCII • SQL DB • tab delimited • MySQL • comma separated • sqlite • XML • Oracle • Access • DTD deOinition? • SQL Server • Schema deOinition? • Namespaces? • Hierarchical DB • JSON • Berkeley XML DB • LDAP • NetCDF • Object‐Relational Mapper • HDF5 • SQL Alchemy (Python) • DICOM • Hibernate (Java, .NET) • Django ORM (Python) • Matlab .MAT format • No‐SQL DB • NumPy .NPZ format • MongoDB • Bespoke binary • CouchDBBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

How to process • Analytical software • Analytical environments • custom programs • multi‐core machine ‐ 48+ core  • Matlab systems for under $5000 (USD) • Perl • GPU • R • compute cluster • Python • supercomputers • SAS, SPSS • grid computing • Tableau • cloud computing • web‐based services • network of workstations (NOW) • Map/Reduce models • “screen‐saver” computing (BOINC)Big Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

48 cores, single system image

For $500 to $2000 (USD), up to order of magnitude processing speedups may be possible

GPU Computing 200800 stream  processing cores per cardFor $500 to $2000 (USD), up to order of magnitude processing speedups may be possible

Open Science Grid www.opensciencegrid.orgBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Map/Reduce • Unix users: • cat | grep | sort | unique > file • Map/Reduce equivalent: • input | map | shuffle | reduce > output • HadoopFS (HDFS) • large data set is automatically spread and replicated across local  storage resources (disks) of each node in a cluster • Map • creates a job for each data block in the input • maps the computational kernel to each job • schedules jobs to nodes with required data block • each job produces a set of key/value pair job result • Reduce • collect results from Map stage based on keys (Combine) • aggregates values to produce task (Oinal) result Big Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Extensions • Pig and Hive • pig.apache.org    hive.apache.org • simplify writing Map/Reduce programs for Hadoop • SQL‐like query language for datasets available on HDFS • Cloudera • www.cloudera.com • packaged distribution of Hadoop + extensions • education + training material • Amazon Elastic Map Reduce • aws.amazon.com/elasticmapreduce • Amazon “cloud‐based” hosting of Hadoop for Map/Reduce using EC2  for compute and S3 for storageBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Organization, Searching, and Meta‐Data • Few “software” solutions for this problem • iRODS  provides some of this • Unix “locate” database • SAN solutions may index software and provide tools for searching • Establish protocols, document, communicate • director hierarchy • Oile naming • persisted working space • scratch/temporary space • Filesystem functionality • many Oile systems have per‐Oile meta‐data controls to add arbitrary  key/value pairs • Augmented web‐based view • cern_meta Apache module provides key/value pairs in HTTP HEAD • ability to assert arbitrary web organization on top of Oilesystem  organization, with searching and graphical viewsBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

• www.irods.org • File‐like paradigm for data‐management • addition of meta‐data • can integrate database resources • provides rich access policy management • automated workOlows based on data actions • add, remove, modify • automated replication • built‐in provenance • information life‐cycle managementBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Search: Apache • lucene.apache.org • Java‐based • full text querying and searching • indexing • Solr provides web interfaceBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Meta‐Data: Semantic Media WikiBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Meta‐Data: Semantic Media Wiki • You know WikipediaBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Meta‐Data: Semantic Media Wiki • You know Wikipedia • It is built using MediawikiBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Meta‐Data: Semantic Media Wiki • You know Wikipedia • It is built using Mediawiki • Semantic Media Wiki adds Semantic Web features • Flexible key/value schemas • User deOined and changeable object classes • Built‐in knowledge of dates → timelines • Built‐in knowledge of locations → maps • Built‐in handling of images → picture galleriesBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Access ControlBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Access Control • Need a strong Identity Management environment • individuals: identity tokens and identiOiers • groups: membership lists • Active Directory/CIFS (Windows), Open Directory (Apple), FreeIPA (Unix) all LDAP‐ basedBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Access Control • Need a strong Identity Management environment • individuals: identity tokens and identiOiers • groups: membership lists • Active Directory/CIFS (Windows), Open Directory (Apple), FreeIPA (Unix) all LDAP‐ based • Need to manage and communicate Access Control policies • institutionally driven • user drivenBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Access Control • Need a strong Identity Management environment • individuals: identity tokens and identiOiers • groups: membership lists • Active Directory/CIFS (Windows), Open Directory (Apple), FreeIPA (Unix) all LDAP‐ based • Need to manage and communicate Access Control policies • institutionally driven • user driven • Need Authorization System • Policy Enforcement Point (shell login, data access, web access, start application) • Policy Decision Point (store policies and understand relationship of identity token   and policy)Big Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Case Study: SBGrid • www.sbgrid.org • computing expertise for protein structure and  function research • software • training • technical support • storage • cluster and grid computing • 150 member labs in consortium • about 1000 total researchers • structure imaging and model building: • imaging techniques are data intensive • model determination techniques are compute intensiveBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

SBGrid Science Portal GlobusOnline UC San Diego @Argonne GUMS User GUMS GridFTP + glideinWMS data Hadoop factory Open Science Grid computations MyProxy @NCSA, UIUC monitoring interfaces data computation ID mgmt Ganglia scp Condor FreeIPA Apache DOEGrids CA Nagios GridFTP Cycle Server @Lawrence GridSite LDAP RSV SRM VDT Berkley Labs Django VOMS Globus pacct WebDAV Sage Math GUMS glideinWMS Gratia Accting R-Studio GACL @FermiLab file SQL shell CLI server DB cluster Monitoring SBGrid Science Portal @ Harvard Medical School @IndianaBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Data Model • Data Tiers • VOwide: all sites, admin managed, very stable • User project: all sites, user managed, 1‐10 weeks, 1‐3 GB • User static: all sites, user managed, indeOinite, 10 MB • Job set: all sites, infrastructure managed, 1‐10 days, 0.1‐1 GB • Job: direct to worker node, infrastructure managed, 1 day, <10 MB • Job indirect: to worker node via UCSD, infrastructure managed, 1  day, <10 GBBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Data Management quota du scan tmpwatch conventions workOlow integration Data Movement scp (users) rsync (VO‐wide) grid‐ftp (UCSD) curl (WNs) cp (NFS) htcp (secure web)Big Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

red  push <iles green  pull <ilesBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

red  push <iles green  pull <iles 1. user <ile uploadBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

red  push <iles green  pull <iles 2. replicate gold standard 1. user <ile uploadBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

3. Autoreplicate red  push <iles green  pull <iles 2. replicate gold standard 1. user <ile uploadBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

4. pull <iles from UCSD to WNs 3. Autoreplicate red  push <iles green  pull <iles 2. replicate gold standard 1. user <ile uploadBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

4. pull <iles from UCSD to WNs 5. pull <iles from 3. Autoreplicate local NSF to WNs red  push <iles green  pull <iles 2. replicate gold standard 1. user <ile uploadBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

4. pull <iles from UCSD to WNs 5. pull <iles from 3. Autoreplicate local NSF to WNs 6. pull <iles from SBGrid to WNs red  push <iles green  pull <iles 2. replicate gold standard 1. user <ile uploadBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

4. pull <iles from UCSD to WNs 5. pull <iles from 3. Autoreplicate local NSF to WNs 6. pull <iles from SBGrid to WNs red  push <iles green  pull <iles 2. replicate gold standard 7. job results copied  back to SBGrid 1. user <ile uploadBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

4. pull <iles from UCSD to WNs 5. pull <iles from 3. Autoreplicate local NSF to WNs 6. pull <iles from SBGrid to WNs red  push <iles green  pull <iles 2. replicate gold standard 7. job results copied  back to SBGrid 8a. large job results  copied to UCSD 8b. later pulled to  1. user <ile upload SBGridBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Copy, Move, BackupBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Copy, Move, Backup • Large data sets are difOicult to copy, move,  replicate, and backupBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Copy, Move, Backup • Large data sets are difOicult to copy, move,  replicate, and backup • Tools and protocols required, with management • sys admin (technial knowledge) • archivist/curator (domain knowledge)Big Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Copy, Move, Backup • Large data sets are difOicult to copy, move,  replicate, and backup • Tools and protocols required, with management • sys admin (technial knowledge) • archivist/curator (domain knowledge) • Common structure: • Tier 1 ‐ single master copy of data (live), possible ofOline tape backup • Tier 2 ‐ multiple reliable T‐1 replicas serving a speciOic community • Tier 3 ‐ temporary “working set” T‐2 replicas of required dataBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Copy, Move, Backup • Large data sets are difOicult to copy, move,  replicate, and backup • Tools and protocols required, with management • sys admin (technial knowledge) • archivist/curator (domain knowledge) • Common structure: • Tier 1 ‐ single master copy of data (live), possible ofOline tape backup • Tier 2 ‐ multiple reliable T‐1 replicas serving a speciOic community • Tier 3 ‐ temporary “working set” T‐2 replicas of required data • GridFTPBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Copy, Move, Backup • Large data sets are difOicult to copy, move,  replicate, and backup • Tools and protocols required, with management • sys admin (technial knowledge) • archivist/curator (domain knowledge) • Common structure: • Tier 1 ‐ single master copy of data (live), possible ofOline tape backup • Tier 2 ‐ multiple reliable T‐1 replicas serving a speciOic community • Tier 3 ‐ temporary “working set” T‐2 replicas of required data • GridFTP • Storage Resource Broker (SRB)Big Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Copy, Move, Backup • Large data sets are difOicult to copy, move,  replicate, and backup • Tools and protocols required, with management • sys admin (technial knowledge) • archivist/curator (domain knowledge) • Common structure: • Tier 1 ‐ single master copy of data (live), possible ofOline tape backup • Tier 2 ‐ multiple reliable T‐1 replicas serving a speciOic community • Tier 3 ‐ temporary “working set” T‐2 replicas of required data • GridFTP • Storage Resource Broker (SRB) • GlobusOnlineBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Globus Online: High Performance  Reliable 3rd Party File Transfer http://www.globusonline.org portal cluster data collection facility lab file server desktop laptopBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Summary • Data can empower rather than overwhelm you • but this requires thought and planning • Understand your data sources • Understand your data consumers • Educate yourself on available tools and technology • Design your data management system suitablyBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Acknowledgements & Questions • Piotr Sliz • Principle Investigator, head of SBGrid • SBGrid System Administrators • Ian Levesque, Peter Doherty • Globus Online Team • Steve Tueke, Ian Foster, Rachana  Ananthakrishnan, Raj Kettimuthu  • Terrence Martin • System administrator at UCSD for assistance and  encouragement using 1 PB Hadoop storage array • Brian Bockleman • Physics faculty at University of Nebraska • Steve Timm • System administrator at FermiLab • Ruth Pordes • Director of OSG, for championing SBGridBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Acknowledgements & Questions • Piotr Sliz • Principle Investigator, head of SBGrid • SBGrid System Administrators • Ian Levesque, Peter Doherty Please contact me  • Globus Online Team with any questions: • Steve Tueke, Ian Foster, Rachana  • Ian Stokes‐Rees Ananthakrishnan, Raj Kettimuthu  • ijstokes@hkl.hms.harvard.edu • ijstokes@spmetric.com • Terrence Martin • System administrator at UCSD for assistance and  encouragement using 1 PB Hadoop storage array Look at our work • Brian Bockleman • portal.sbgrid.org • Physics faculty at University of Nebraska • www.sbgrid.org • www.opensciencegrid.org • Steve Timm • System administrator at FermiLab • Ruth Pordes • Director of OSG, for championing SBGridBig Data - Ian Stokes-Rees ijstokes@hkl.hms.harvard.edu

Big Data: tools and techniques for working with large data sets

by Ian Stokes-Rees

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