Hydra 2019: free broadcast of the first hall and a little about what will be at the conference

    On July 11-12, that is, this Thursday and Friday, the Hydra 2019 conference will be held . These are two days and two tracks of reports devoted to distributed computing. Presentations are made by the best scientists and engineers who came to St. Petersburg from around the world. The conference is aimed at specialists in the field, no introductory reports!

    You can watch a completely free online broadcast. It will be only the first day and the first room + online interview between reports. What kind of reports are discussed below.

    It is important that the broadcast starts at 9:45 in the morning (Moscow time), 15 minutes before the opening, and ends closer to 8 o’clock in the evening. All this time you will be able to listen to reports with short breaks. The link will work all day, so you can open it only on the most important reports for you.

    Link to the site with the video and the program - under the cut. There we will discuss several things that will not be broadcast, but which are available to participants who arrived at the conference live.

    Where to get the broadcast

    The broadcast page is waiting for this green button-link:

    A video player and a program of the first room are available. The player will come to life only in the morning of July 11, now it shows nothing.


    It all starts with Keyff Cliff Click's “The Azul Hardware Transactional Memory experience” . Cliff is the legend of the Java world, the father of JIT compilation and the wizard of low-level performance. We did a great hub interview with him , I recommend reading it. This is a report about the very incredible supercomputer created in the bowels of Azul.

    The second report is from Ori Lahav of Tel Aviv University. Ori is engaged in the study of programming languages, formal verification, especially for everything related to multithreading. In the report “Weak memory concurrency in C / C ++ 11”, we will look at how the multithreading model is formally described in C ++ 11 and how to live with problems like out-of-thin-air.

    In the third report, “Liberating distributed consensus,” Heidi Howard of Cambridge University will return to the theoretical foundations of Paxos, easing the initial requirements and generalizing the algorithm. We will see that Paxos, in fact, is only one option among a huge range of consensus approaches and that other points in the spectrum are also very useful for building good distributed systems. Heidi's specialization is consistency, fault tolerance, performance, and distributed consensus.

    “Reduce your storage costs with Transient Replication and Cheap Quorums” is a report by Alex Petrov about how you can reduce the load on the storage if you keep data only on part of the nodes, and use special nodes (Transient Replica) for failure processing scenarios. In the course of the report, we will look at Witness Replicas, the replication scheme used by Spanner and Megastore, and the implementation of this concept in Apache Cassandra under the names Transient Replication & Cheap Quorums.

    Roman Elizarov from JetBrains will talk about Structured concurrency . The novel is a team lead for the development of language libraries and the Kotlin platform, personally involved in the architecture and implementation of coroutine.

    And it completes the broadcast of “Blockchains and the future of distributed computing” - keynote by Maurice Herlichi, the world-famous scientist and father of transactional memory. We did a great interview with Maurice , which you should read before visiting the report.

    Total: six reports, transactional memory, memory models, distributed consensus, structured concurrency, and even blockchains. Everything you need to have a great day.

    If you want to get access to all the reports in general (not only to the first room) on Thursday and Friday, you can purchase an Online ticket . In fact, this is the only opportunity for those who learned about the conference just now and no longer have time to get to St. Petersburg. In addition, so you will have all the videos of what happened. Complex reports are distinguished by the fact that they will most likely have to be reviewed.

    Not everything is available in broadcast

    If you manage to buy a ticket at the last moment and arrive live at the conference, there will be some more interesting things:

    Discussion areas

    After each report, the speaker goes to a dedicated discussion area, where you can chat with him and ask your questions. Formally, this can be done between reports. Although the speakers are not obliged, they usually stay much longer - for example, for the duration of the next report. Sometimes it makes sense to skip the report from the main program (if you bought a ticket, you will still have entries after filling out the feedback) and spend it on focused communication with an important expert.

    Two BOF sessions

    BOF is now a traditional format at our conferences. Something like a round table or discussion group in which everyone can participate. This format historically dates back to the first Internet Engineering Task Force (IETF) informal discussion groups . There is no division by speaker and participant: everyone participates on an equal footing.

    Two topics are currently planned : “Modern CS in the real world” and “Trade-offs in concurrency”. Both BOF sessions are conducted in English only, as well as many reports and discussion zones at the conference.

    Exhibition area

    The exhibition is the stand area of ​​the partner companies of the conference. Here you can find out about interesting projects, technologies and teamwork of leaders in the IT industry. This is the place where you and the company can find each other. At Hydra, we have Deutsche Bank Technology Center and Kontur .

    Beer and Music Party

    In parallel with the BOFs, the party starts at the end of the first day. Drinks, snacks, music - all at once. You can chat in an informal setting and discuss everything in the world. You can move from the bof to the party. You can move from the party to the bof.

    Next steps

    • If you are watching a free broadcast: follow the link on Thursday, July 11th. The broadcast will begin at about 9:45 a.m. Moscow time.
    • If you want to access all the reports and recordings after the conference: you need to purchase an Online ticket .
    • If you change your mind and go live: you have less than a day left to purchase a ticket, all possible options are available here .

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