The report looks good. Thanks for writing it, Ruben. Regarding Community-over-Code. I submitted a talk about Morel and its relationship with Calcite, and it was not accepted. (My talk proposal for the Community track, '“But the tests all pass!” - Cultivating Intellectual Control in ASF projects’ was accepted, but I decided not to attend the conference.) The large number of Cassandra talks is in part due to the fact that it has its own track. It is possible for Cassandra to have its own track because it has end-users building all kinds of systems, as opposed to Calcite, that has modest numbers of end-users, all of whom are building a DBMS.
> On Sep 30, 2025, at 8:48 AM, Ruben Q L <[email protected]> wrote: > > @Mihai this is based on Apache's automatic report of project statistics. > At this moment for Calcite it shows "Community Health Score (Chi): 9.60 > (Super Healthy)" > I'm not sure how this formula gets calculated, but it seems its based on > metrics like emails per day in all mailing lists, committers / PMC members > added in the last six months, etc. > > Ruben > > > On Tue, Sep 30, 2025 at 4:38 PM Mihai Budiu <[email protected]> wrote: > >> I am not sure how health grades are assigned. >> >> I just want to mention that I went to Community over Code last month in >> Minneapolis, and there were no presentations on Calcite, I didn't meet >> anyone who said they were working on Calcite, and there were no Calcite >> stickers. >> >> In comparison, there were maybe 20 or more sessions on Cassandra, and many >> other projects that had lots of presentations. >> >> So if Calcite is "super healthy" I wonder what the other projects are. >> >> This is just one data point. >> >> Mihai >> >> ________________________________ >> From: Ruben Q L <[email protected]> >> Sent: Tuesday, September 30, 2025 12:19 AM >> To: Apache Calcite dev list <[email protected]> >> Subject: Draft: board report for 2025 Q3 >> >> Hello, >> >> Below you can find a draft of this quarter's board report. I plan to submit >> the final version by the end of the week. >> Please let me know if you have any additions or corrections. >> >> Best, >> Ruben >> >> >> ------------------------------------------------- >> >> ## Description: >> Apache Calcite is a highly customizable framework for parsing and planning >> queries on data in a wide variety of formats. It allows database-like >> access, >> and in particular a SQL interface and advanced query optimization, for data >> not residing in a traditional database. >> >> Avatica is a sub-project within Calcite and provides a framework for >> building >> local and remote JDBC and ODBC database drivers. Avatica has an independent >> release schedule and its own repository. >> >> ## Project Status: >> Current project status: ongoing (high activity) >> Issues for the board: none >> >> ## Membership Data: >> Apache Calcite was founded 2015-10-22 (10 years ago) >> There are currently 78 committers and 32 PMC members in this project. >> The Committer-to-PMC ratio is roughly 5:2. >> >> Community changes, past quarter: >> - No new PMC members. Last addition was Alessandro Solimando on 2025-05-01. >> - No new committers. Last addition was Zhen Chen on 2025-05-19. >> >> ## Project Activity: >> Avatica 1.27.0 was released on 2025-09-30, it contains dependency upgrades, >> Gradle 8.14 and support for MySQL unsigned types. There were no Calcite >> releases this quarter, but we have started the discussions towards Calcite >> 1.41.0, so it shall be released soon. >> >> ## Community Health: >> The community continues on a "Super healthy" status. As usual during the >> northern summer, there has been a slow-down in the general activity in the >> last >> three months, e.g. we have seen a decrease in the mailing lists traffic in >> the >> last quarter (18% decrease in dev, 26% decrease in issues). Nevertheless, >> we >> have had a decent amount of Jira tickets opened (129) and closed (100) in >> the >> past three months. >> >> The number of non-committer (contributor) commits per month: >> +------+-------+---------------------+ >> | year | month | contributor_commits | >> +------+-------+---------------------+ >> | 2025 | 7 | 16 | >> | 2025 | 8 | 6 | >> | 2025 | 9 | 10 | >> +------+-------+---------------------+ >> >> The number of active reviewers per month: >> +------+-------+------------------+ >> | year | month | active_reviewers | >> +------+-------+------------------+ >> | 2025 | 7 | 3 | >> | 2025 | 8 | 4 | >> | 2025 | 9 | 6 | >> +------+-------+------------------+ >> >> Top reviewers in the last 3 months: >> +---------------+---------+ >> | committer | reviews | >> +---------------+---------+ >> | Mihai Budiu | 13 | >> | Jensen | 10 | >> | NobiGo | 3 | >> +---------------+---------+ >>
