Hi all, The draft schedule for COC Asia 2026 is out! There will be seven sessions on Cloudberry at the upcoming conference. Congratulations to all of you, and thanks, everyone! We also plan to hold an in-person gathering in Beijing during the conference; the topics will focus on Cloudberry's incubation, graduation, and community. If you have any topics to discuss, please leave your comments.
~~~~ #Data Lake & Data Warehouse What's new in Apache Cloudberry (Incubating) 2.1 and 3.0, Max Yang https://asia.communityovercode.org/sessions/datalake-1213358.html #Data Storage & Computing When the Optimizer Lies: Debugging Cross-Slice Execution in Apache Cloudberry, Alena Rybakina https://asia.communityovercode.org/sessions/datastorage-1213149.html #Incubator Beyond Incubation: Building a Sustainable Apache Community with Cloudberry, Dianjin Wang https://asia.communityovercode.org/sessions/incubator-1210256.html #Incubator Build Once, Run on Any Linux: SynxDB CE for Apache Cloudberry (Incubating), Shine Zhang & Ed Espino https://asia.communityovercode.org/sessions/incubator-1212002.html #Observability Apache Cloudberry: gathering statistics for queries executed by multiple PostgreSQL instances. Leonid Borchuk https://asia.communityovercode.org/sessions/observability-1195519.html #OLAP & Data Analysis Deep Dive into Parallel Query Execution Solutions for Apache Cloudberry, Rose Duan https://asia.communityovercode.org/sessions/olap-1210336.html #OLAP & Data Analysis We tried DPDK for network but failed. Why and what we have learned from this? Leonid Borchuk https://asia.communityovercode.org/sessions/olap-1195516.html Best, Dianjin Wang On Thu, Apr 16, 2026 at 11:43 PM Leonid Borchuk <[email protected]> wrote: > > Hi! > > Thank you, fixed - now the topic is "Apache Cloudberry: gathering > statistics for queries executed by multiple PostgreSQL instances." ) > > Also thank you for the link to the assistance service, I'll keep him in mind > . > > On Thu, Apr 16, 2026 at 9:57 AM Dianjin Wang <[email protected]> wrote: > > > Hi Leonid, > > > > I took a look at your second proposal, “Outside of pg_stat_statements: > > if your query is executed by multiple PostgreSQL instances” — it’s a > > very practical and interesting topic. > > > > One small suggestion: since Community Over Code is strongly > > Apache-focused, do you think it might be possible to create some > > connection to Apache projects (e.g., Cloudberry or the broader Apache > > ecosystem)? Even a light touch there could help strengthen its fit and > > improve acceptance chances. Just a thought! > > > > Also, in case it’s helpful — the event provides Travel Assistance: > > https://tac.apache.org/events/current.html. If other community members > > want to get travel assistance, can apply for it. > > > > I'm also preparing a talk and will share it soon. > > > > Best, > > Dianjin Wang > > > > On Mon, Mar 30, 2026 at 7:07 PM Leonid Borchuk <[email protected]> > > wrote: > > > > > > Hi! > > > > > > Thank you, I opened a proposal for 2 sessions: > > > > > > We tried DPDK for network but failed. Why and what we have learned from > > > this? > > > Description > > > > > > The CPU frequency is practically not growing, but everything else: > > > network/ssd/ data volumes are growing exponentially. This poses new > > > challenges for the databases: reduce CPU costs for working with the > > > infrastructure. The bottleneck of MPP systems is the network. What > > happens > > > if the network in Greenplum becomes 10 times faster? We accelerated 5 > > > times. Then we tried DPDK, but realized that we couldn't move forward > > > without serious core refinement. I would share what happened to the > > > database when the network accelerated 5 times. And also why DPDK didn't > > > start. > > > What conclusions have we learned and what are we planning to do next > > > (spoiler: all new changes will be in Apache Cloudberry). > > > Session format > > > > > > Session > > > Track > > > > > > OLAP & Data Analysis > > > Level > > > > > > Intermediate > > > Language > > > > > > English > > > > > > Outside of pg_stat_statements: if your query is executed by multiple > > > PostgreSQL instances > > > Description > > > > > > Let's say you have several PostgreSQL instances, they all execute a > > single > > > query, and you want to collect general statistics on how many resources > > > were spent on executing this query. The built-in pg_stat_statements > > module > > > is no longer suitable here, since it works within the same database. I > > will > > > present a solution with a similar central idea — collecting data through > > > query execution hooks, but instead of storing it in PostgreSQL shared > > > memory, we send raw data to an external agent process. This process is > > > responsible for aggregating metrics, providing a unified picture across > > all > > > instances, as well as additional functions, such as the forced > > termination > > > of problematic sessions, while not limited to PostgreSQL: the solution > > can > > > collect data from other system components. I will talk about > > architecture, > > > product tasks, and share links to the repositories (Apache 2.0 License) > > > with the code. > > > Session format > > > > > > Session > > > Track > > > > > > Observability > > > Level > > > > > > Advanced > > > Language > > > > > > English > > > > > > On Mon, Mar 23, 2026 at 4:02 AM Dianjin Wang <[email protected]> > > wrote: > > > > > > > Hi all, > > > > > > > > I’d like to share that the Call for Proposals (CFP) for Community Over > > > > Code Asia 2026 is now open: > > > > https://sessionize.com/community-over-code-asia-2026/ > > > > > > > > Community Over Code Asia 2026 will be held in Beijing from August 7 to > > 9, > > > > 2026. > > > > > > > > I’d like to encourage everyone in the Apache Cloudberry community to > > > > consider submitting talk proposals. There are multiple tracks that > > > > could be a good fit for Cloudberry-related topics, including for > > > > example: > > > > > > > > - Data + AI > > > > - Data Lake & Data Warehouse > > > > - Incubator > > > > - OLAP & Data Analysis > > > > > > > > You can also find the full list of tracks here: > > > > https://asia.communityovercode.org/tracks.html > > > > > > > > This is a great opportunity to share our technical progress, community > > > > journey, user stories, ecosystem work, and ideas around Apache > > > > Cloudberry with the broader open source community. > > > > > > > > The CFP deadline is 21 April 2026, so now is a good time to start > > > > preparing proposals. > > > > > > > > If you already have a topic in mind but would like help refining the > > > > title, abstract, or track selection, feel free to start a discussion > > > > on the mailing list. > > > > > > > > Best, > > > > Dianjin Wang > > > > > > > > --------------------------------------------------------------------- > > > > To unsubscribe, e-mail: [email protected] > > > > For additional commands, e-mail: [email protected] > > > > > > > > > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: [email protected] > > For additional commands, e-mail: [email protected] > > > > --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
