DolphinScheduler Community Monthly Report (May–June): Bug Fixes, Optimizations, and Contributor Highlights!

Dear DolphinScheduler developers and users,
The DolphinScheduler community’s May–June monthly report is here! This issue highlights the key progress made over the past two months:

✨ Contributor Spotlight: Over 20 contributors earned the title of Monthly Merge Star—thank you for your passion and commitment to open source!
🔧 Focused Bug Fixes: Key issues such as Zookeeper connection failures, missing K8s namespaces, dependency task state errors, variable pool malfunctions, and COS resource path problems have all been successfully addressed, significantly improving system stability.
🚀 Ongoing Performance & Usability Enhancements: Redundant parameters were removed, JSON exception handling logic was refined, UI instance list display was optimized, and the scheduling mechanism of sub-workflow tasks was improved.
📘 Docs & CI Improvements: Several documentation fixes and CI hotfixes were introduced to ensure a smoother experience for developers participating in the project.

Monthly Merge Stars

Thanks to the following contributors for their outstanding contributions to Apache DolphinScheduler last month (in no particular order):

@SbloodyS,@RooobinYe,@khanhdohoang,@npofsi,@Xilin10012,@Applenice,@zhongjiajie,@dill21yu,@gaoyan1998,@reele,@det101,@unigof,@Asakiny,@ruanwenjun,@sdhzwc,@jieme,@Rockefeller04,@jbampton,@Oscarcheng0312,@yingh0ng,@ZhongJinHacker

apache/dolphinscheduler

fix

• [Fix-17625][Dolphinscheduler on K8S]fix dolphinscheduler can't reconnect zookeeper when PodIP change @Asakiny
• [Fix-17239][Dependent]Dependent check get wrong result in manual running execution type @SbloodyS
• [Fix-17225][Doc]fix parameter priority pass order @unigof
• [Fix-17232][master]handle the problem that master nodes gains the same slot id @ZhongJinHacker
• [Fix-17217]HotFix TaskKillLifecycleEvent/TaskPauseLifecycleEvent retry interval @ruanwenjun
• [Fix-17208][dependent]Fix validate dependent failure waiting time @sdhzwc
• [Fix-17184]Fix varpool cannot use @ruanwenjun
• [Fix-17189][UI]Dependent task result status icon error @SbloodyS
• [Fix-17186]Namespace Selection Missing in k8s task @jieme
• [Fix-17187][Dependent Task]finish dependent task error @SbloodyS
• [Fix-17182][Dependent Task]error occured in dependent task node @SbloodyS
• [Fix-17177]Fix cos resource can not list @gaoyan1998
• [Fix-17175]The base path of COS resources obtained is incorrect @gaoyan1998
• [Fix-17173] [JVM Metrics]Fix JVM memory monitoring metrics @dill21yu
• [Fix-17142]Add UK uniq_workflow_definition_code on t_ds_workflow_definition @ruanwenjun
• [Fix-17026][API]Fix the schedule-release-state from import workflowDefinition whose scheduled-release-state was online @yingh0ng

improve

• [Improvement-17288]CodeGenerateException is swallowed in ProcessDefinitionDemo @ruanwenjun
• [Improvement-17277]Remove unused testFlag @SbloodyS
• [Improvement-17249][Doc]Improve development-environment-setup documentation with plugins @det101
• [Improvement-17267]Throw exception if deserialize json failed in JSONUtils @ruanwenjun
• [Improvement-17241][UI]workflow instance list index should display workflow instance id instead of serial number @SbloodyS
• [Improvement-17202]Retry TaskKillLifecycleEvent/TaskPauseLifecycleEvent when task instance is submitted but already dispatched @ruanwenjun
• [Improvement-17194][Master]Removed unused params in TaskExecutionContext @ruanwenjun
• [Improvement-17179][Master]Remove GlobalTaskDispatchWaitingQueue @ruanwenjun
• [Improvement-16767]Takeover sub-workflow in sub-workflow-task @reele

others

• [Chore][CI]Hot fix ci error @SbloodyS
• [Doc-17228] [README]Point links to latest docs and correct typos @RooobinYe
• [Chore]Skip maven-dependency-plugin in ci @ruanwenjun
• [Chore][Doc]Fix typo for contribution docs @npofsi
• [Chore]Fix spelling in ProcedureTask log.info @jbampton
• [Doc-17211]Update links in Chinese Quick Start guide to point to Chinese versions @Xilin10012
• [Doc-17209]Fix typos and improve grammar in README.md @Rockefeller04
• [Chore]Hotfix ci error @SbloodyS
• [DSIP-40][APIService]Add LogClient to fetch log @det101
• [Chore][docs]Update documentation notice content sync with website readme @Applenice
• [Doc-16755]Improve architecture description with JDBC and Etcd supportImprove design doc @Oscarcheng0312 # apache/dolphinscheduler-sdk-python

others

• Skip maven-dependency-plugin in ci @zhongjiajie # apache/dolphinscheduler-website

others

• ci: fix dl failed @zhongjiajie
• [CI]Dead link checker performance improvement @SbloodyS
• [Doc]Modified README based on Copilot's comments @Applenice
• fix part section inline link error @Applenice
• fix: documentation description error @Applenice
• fix: choose by your deployment requirement link error @Applenice
• Fix duplicating text in URL when navigating to pages in Documentation @khanhdohoang