Caideyipi opened a new pull request, #17932: URL: https://github.com/apache/iotdb/pull/17932
## Description This PR avoids blocking DataNode startup while cleaning stale pipe hardlink/copied-file directories. Previously, startup synchronously deleted the pipe hardlink base dir. On deployments with a huge number of pipe object files, this can keep the main startup thread in recursive filesystem deletion for a long time. The new flow: - rename the existing pipe hardlink dir aside as `pipe.startup-cleaning-*` during startup - register stale dirs to the existing `PipePeriodicalJobExecutor` - delete stale dirs in throttled rounds instead of adding a new thread or blocking the startup thread - resume cleanup of interrupted `pipe.startup-cleaning-*` dirs on the next startup ## Verification - `mvn -Ddevelocity.off=true -DskipTests spotless:apply -pl iotdb-core/datanode` - `git diff --cached --check` `spotless:check` could not be completed in the local Windows environment because the JVM failed to start due to insufficient native/page-file memory. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
