Active contributorsPeople with at least one commit in the month.
110
+23
Contributors
New contributorsPeople whose first in-scope commit falls in the month.
36
+11
Sustained contributorsPeople with at least 5 commits in the 365 days ending at the month boundary.
120
+36
First-to-second retentionShare of people whose second commit arrived within 180 days of their first. The cohort is people whose first commit was at least 180 days ago.
43.0%
-0.3 pt
Contributor concentrationConcentration of commits among people who committed this month. 1/N means an even split. 1 means one person made every commit.
0.033
+0.009
Pull requests
Pull requests openedPull requests opened in the month. Drafts are excluded.
700
+337
Pull requests closedPull requests closed in the month, including merges. Drafts are excluded.
697
+350
Closed by the stale botUnmerged pull requests closed by the stale-bot account, github-actions.
131
+101
Closed by a committerPull requests merged, or closed without a merge by a person rather than a bot.
566
+249
Open pull requestsPull requests still open at the end of the month. Drafts are excluded.
719
+370
Median open ageMedian age, in days, of pull requests open at the end of the month.
36.9 days
-51.8 days
Stale pull requestsShare of open pull requests that have been open for at least 28 days.
62.7%
-10.6 pt
Median time to mergeMedian hours from open to merge for pull requests merged in the month.
44.8 hours
+19.9 hours
Reviews
Median time to first reviewMedian hours from open to the first review by someone other than the author. Pull requests with no such review are left out of the median.
9.9 hours
+1.7 hours
Slowest and fastest
Longest
- PR #17958 - Spark 4.2: Set Iceberg field IDs as Spark column IDs for DSv2 validation - 1081.9 hours
- PR #18003 - Kafka Connect: Add a converter from equality deletes to deletion vectors - 1078.5 hours
- PR #18073 - Core, REST: Avoid loading all snapshots when committing in refs mode - 973.2 hours
Fastest
Reviewer concentrationConcentration of review submissions among reviewers this month, excluding the pull request author.
0.044
-0.022
Reviews per reviewerMean review submissions per reviewer in the month.
30.6
+12.9
Mailing list
Median time to a replyMedian hours to the first reply from someone else on a dev@iceberg.apache.org thread started in the month.
4.4 hours
-3.2 hours
Unanswered threadsShare of dev-list threads started in the month that had no reply from a different person by the end of the month.
45.5%
-0.3 pt
Positive-tone messagesShare of classified public dev@iceberg.apache.org messages sent in the month whose lexicon score is positive. The score counts tone words in the subject and the first 2,000 characters of the message's own text, after quoted replies and the signature are removed. Messages with no plain text are left out. A rough word list, not a judgment of any person and not a health score.
73.7%
-7.0 pt
Neutral-tone messagesShare of classified public dev@iceberg.apache.org messages sent in the month whose lexicon score is neutral. The score counts tone words in the subject and the first 2,000 characters of the message's own text, after quoted replies and the signature are removed. Messages with no plain text are left out. A rough word list, not a judgment of any person and not a health score.
23.8%
+5.7 pt
Negative-tone messagesShare of classified public dev@iceberg.apache.org messages sent in the month whose lexicon score is negative. The score counts tone words in the subject and the first 2,000 characters of the message's own text, after quoted replies and the signature are removed. Messages with no plain text are left out. A rough word list, not a judgment of any person and not a health score.
2.6%
+1.4 pt
Releases
Stable releasesStable release tags in the trailing 730 days. Release candidates, alphas, betas, snapshots, and previews are excluded. The ecosystem value is the Apache Iceberg Java release train.
13
-3
Days since last stable releaseDays from the newest stable tag to the end of the month. Java tags count when the version is also listed in the ASF archive.
0.9 days
-55.3 days
Exclusions
- bot_commit: 3213
- bot_review: 13
- draft_pull_request: 797