João Tiago Medeiros Paulo
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| Email: | jtpaulo at di.uminho.pt |
| Address: | Departamento de Informática Universidade do Minho Campus de Gualtar 4710-057 Braga Portugal |
| Phone: | +351 253 604 477 / Internal: 604 477 |
| Fax: | +351 253 604 471 |
| Curriculum Vitae: |
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Education
Projects
- PASTRAMY
- 2009-2010: Persistent and highly Available Software TRansactional MemorY (PTDC/EIA/72405/2006) Researcher of project PASTRAMY. Conception, development and evaluation of a virtualized shared storage prototype using XEN hypervisor and its block tap mechanism.
Publications
2013
- DEDIS: Distributed Exact Deduplication for Primary Storage Infrastructures
- João Paulo, José Pereira
- In proceedings of ACM Symposium on Cloud Computing (SOCC'13) (Poster Fast Abstract), October 1-3, 2013
- Towards an Accurate Evaluation of Deduplicated Storage Systems.
- João Paulo, Pedro Reis, José Pereira, António Sousa
- International Journal of Computer Systems Science and Engineering. 29(1):73-83. 2013
- MeT: Workload aware elasticity for NoSQL.
- Cruz, F, Maia F, Matos M, Oliveira R, Paulo J, Pereira J, Vilaça R. 2013.
- In proceedings of EuroSys’2013, 2013
2012
- DEDISbench: A Benchmark for Deduplicated Storage Systems.
- João Paulo, Pedro Reis, José Pereira, António Sousa
- In proceedings of 2nd International Symposium on Secure Virtual Infrastructures (DOA-SVI'12), September 9-14, 2012
2011
- Model Checking a Decentralized Storage Deduplication Protocol
- João Paulo, José Pereira
- Fast Abstract - Fifth Latin-American Symposium on Dependable Computing, April 25-29, 2011
2009
- Efficient Storage of Data in Cloud Computing
- João Paulo
Supervisor: José Orlando Pereira - Master’s thesis, Universidade do Minho, 2009
Software
- DEDISBENCH DEDISbench is an open source micro I/O benchmark suitable for evaluating deduplication systems by generating blocks with a realistic content distribution. The benchmark also allows running tests with different load intensities and introduces a novel hotspot access pattern for I/O requests.
- DEDIS DEDIS is a novel open source distributed post-processing deduplication system. Its main contribution is a novel optimistic asynchronous mechanism for eliminating duplicated data among virtual machines deployed on several remote hosts. This mechanism along with other optimizations allows achieving nearly native disk I/O throughput for virtual machines even when deduplication is being performed in the background. Additionally, DEDIS is fully distributed, allowing the system to scale, and is resilient to server crashes. DEDIS is implemented within XEN, more specifically, is a reimplementation of the Tap:aio Blktap Driver asynchronous I/O block device.
- MET MeT is a Cloud-enabled framework that can be used alone or in conjunction with OpenStack for the automatic and heterogeneous reconfiguration of HBase. MeT is an workload aware system that provides automatic elasticity for the HBase NoSQL database. MeT not only adds and removes nodes automatically and according to system load, but also reconfigures them according to the observed workloads. As a result, it achieves a significant increase in overall system performance.
Events
- SOSP: 23rd ACM Symposium on Operating Systems Principles 2011
- Awarded with a scholarship grant from HP to attend the conference. Helped in the conference organization as a volunteer.
- Lisbon, Portugal, October 2011
- Monty DB Developer Meeting - 2011
- Meeting for Maria DB Developers and other international researchers. Presented "Sharing storage in replicated databases" related with project RED.
- Lisbon, Portugal, March 2011
- 2ª edição Simpósio em Informática - INForum 2010
- Event organization.
- Braga, Portugal, September 2010
- XtreemOS Summer School 2010
- International event organized to describe the XtreemOS FP6 european project. Presented a new version of the deduplication algorithm, designed in the master’s thesis, for a distributed scenario with several servers and dependability concerns. Presented Bolt poster .
- Ulm, Germany, July 2010
- 1ª edição Simpósio em Informática - INForum 2009
- F. Cruz, F. Maia, J. Paulo. Bolt – Backup Solution. Article presented at the poster session of Inforum Conference in Informatics
- Lisbon, Portugal, September 2009
Event Organization
Awards
- SOSP Scholarship
- Awarded with a scholarship, funded by HP, to attend SOSP 2011.
