Education

• Doctor of Philosophy, computer science and engineering, 2020, University at Buffalo
  Advisor: Dr. Murat Demirbas.
  Thesis: Consensus End-to-End: Design, Implementation, and Evaluation of Consensus Protocols.
• Joint Bachelor of Science and Master of Science, computer science, 2015, University of North Florida.
  Advisor: Dr. Ching-Hua Chuan.

Select Publications

1. Linearizable Low-latency Reads at the Edge
   Guarnieri J., Charapko A.
   10th Workshop on the Principles and Practice of Consistency for Distributed Data (PaPoC), 2023.
2. Metastable Failures in the Wild
   Huang L., Magnusson M., Muralikrishna AB., Estyak S., Isaacs R., Aghayev A., Zhu T., Charapko A.
   The 16th USENIX Symposium on Operating Systems Design and Implementation (OSDI’22), 2022.
3. Scaling Replicated State Machines with Compartmentalization
   Whittaker M., Ailijiang A., Charapko A., Demirbas M., Giridharan N., Hellerstein JM., Howard H., Stoica I., Szekeres A.
   47th International Conference on Very Large Data Bases (VLDB), 2021.
4. Scalable but Wasteful: Current State of Replication in the Cloud
   Venkata S. M., Charapko A., Aghayev A.
   The 13th ACM Workshop on Hot Topics in Storage and File Systems (HotStorage’21), 2021.
5. Metastable Failures in Distributed Systems
   Bronson N., Aghayev A., Charapko A., Zhu T.
   The 18th Workshop on Hot Topics in Operating Systems (HotOS ’21), 2021.
6. Read-Write Quorum Systems Made Practical
   Whittaker M., Charapko A., Hellerstein J., Howard H., Stoica I.
   8th Workshop on the Principles and Practice of Consistency for Distributed Data (PaPoC), 2021.
7. PigPaxos: Devouring the Communication Bottlenecks in Distributed Consensus
   Charapko A., Ailijiang A., Demirbas M.
   ACM SIGMOD/PODS International Conference on Management of Data (SIGMOD 2021), 2021.
8. Fast Flexible Paxos: Relaxing quorum intersection for Fast Paxos
   Howard H., Charapko A., Mortier R.
   22nd International Conference on Distributed Computing and Networking (ICDCN ’21), 2021
9. WPaxos: Wide Area Network Flexible Consensus.
   Ailijiang A., Charapko A., Demirbas M., Kosar T.
   IEEE Transactions on Parallel and Distributed Systems, 31(1), pp. 211-223, 2020.
10. Retroscope: Retrospective Monitoring of Distributed Systems.
    Charapko A., Ailijiang A., Kulkarni S., Demirbas M.
    IEEE Transactions on Parallel and Distributed Systems, 2019.
11. Linearizable Quorum Reads in Paxos.
    Charapko A., Ailijiang A., Demirbas M.
    USENIX Workshop on Hot Topics in Storage and File Systems (HotStorage ’19), 2019.
12. Dissecting the Performance of Strongly-Consistent Replication Protocols.
    Ailijiang A., Charapko A., Demirbas M.
    ACM SIGMOD/PODS International Conference on Management of Data (SIGMOD 2019), 2019
13. Adapting to Access Locality via Live Data Migration in Globally Distributed Datastores.
    Charapko A., Ailijiang A., Demirbas M.
    IEEE International Conference on BigData 2018, pp. 3320 – 3329, 2018.
14. Using Weaker Consistency Models with Monitoring and Recovery for Improving Performance of Key-Value Stores.
    Nguyen D., Charapko A., Kulkarni S., Demirbas M.
    Latin-American Symposium on Dependable Computing (LADC), 2018.
15. Bridging Paxos and Blockchain Consensus.
    Charapko A., Ailijiang A., Demirbas M.
    IEEE Blockchain 2018, 2018
16. Lightweight, Incremental, and Retrospective Distributed Snapshots Using Loosely Synchronized Clocks.
    Charapko A., Ailijiang A., Kulkarni S., Demirbas M.
    The 37th International Conference on Distributed Computing Systems (ICDCS), pp. 2061 – 2066, 2017.
17. WANKEEPER: Efficient Coordination at WAN scale.
    Ailijiang A., Charapko A., Demirbas M., Turkkan B., Kosar T.
    The 37th International Conference on Distributed Computing Systems (ICDCS), pp. 1575 – 1585, 2017.
18. Consensus in the Cloud: Paxos Systems Demystified.
    Ailijiang A., Charapko A., Demirbas M.
    The 25th International Conference on Computer Communication and Networks (ICCCN), pp. 1 – 10, 2016.
19. Indexing Musical Sequences in Large Datasets Using Relational Databases.
    Charapko, A., and Chuan. C.-H.
    International Journal of Multimedia Engineering and Management, 6(2), pp. 1 – 18, 2015.
20. Indexing and Retrieving Continuations in Musical Time Series Data Using Relational Databases. 
    Charapko, A., and Chuan. C.-H.
    IEEE International Symposium on Multimedia, pp. 341 – 346, 2014.
21. Predicting Key Recognition Difficulty in Music Using Statistical Learning.
    Chuan, C.-H., and Charapko, A.
    International Journal of Multimedia Engineering and Management, 5(2), pp. 54 – 69, 2014.
22. Predicting Key Recognition Difficulty in Polyphonic Audio.
    Chuan, C.-H., and Charapko, A.
    IEEE International Symposium on Multimedia, pp. 421 – 426, 2013.

Service

• I am on the editorial board of JSys
• I run weekly distributed systems reading group

My full CV (December 2021) is available here: [click to download]

My Google Scholar profile: [here]