manuzhang opened a new issue, #15861: URL: https://github.com/apache/iceberg/issues/15861
### Apache Iceberg version main (development) ### Query engine Flink ### Please describe the bug 🐞 As reported in https://github.com/manuzhang/iceberg/actions/runs/23838360618/job/69487479825, `LockManagers.InMemoryLockManager` uses a JVM-wide shared scheduler in `BaseLockManager`, but each lock manager instance calls `close()` independently. In tests or other multi-catalog JVM usage, one in-memory lock manager can shut down the shared `ScheduledThreadPoolExecutor` while another live manager still needs it for heartbeats. This causes lock acquisition to fail with `RejectedExecutionException` when the remaining manager tries to schedule a heartbeat. ``` TestFlinkTableSink > testIcebergSinkDifferentDAG() > catalogName=testhadoop_basenamespace, baseNamespace=l0.l1, format=PARQUET, isStreaming=false, useV2Sink=true FAILED java.lang.RuntimeException: Failed to collect table result at org.apache.iceberg.flink.TestBase.sql(TestBase.java:105) at org.apache.iceberg.flink.TestFlinkTableSink.testIcebergSinkDifferentDAG(TestFlinkTableSink.java:304) Caused by: org.apache.flink.table.api.TableException: Failed to wait job finish at app//org.apache.flink.table.api.internal.InsertResultProvider.hasNext(InsertResultProvider.java:85) at app//org.apache.flink.table.api.internal.InsertResultProvider.access$200(InsertResultProvider.java:37) at app//org.apache.flink.table.api.internal.InsertResultProvider$Iterator.hasNext(InsertResultProvider.java:112) at app//org.apache.iceberg.relocated.com.google.common.collect.Iterators.addAll(Iterators.java:369) at app//org.apache.iceberg.relocated.com.google.common.collect.Lists.newArrayList(Lists.java:151) at app//org.apache.iceberg.flink.TestBase.sql(TestBase.java:103) ... 1 more Caused by: java.util.concurrent.ExecutionException: org.apache.flink.runtime.client.JobExecutionException: Job execution failed. at java.base/java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:396) at java.base/java.util.concurrent.CompletableFuture.get(CompletableFuture.java:2073) at org.apache.flink.table.api.internal.InsertResultProvider.hasNext(InsertResultProvider.java:83) ... 6 more Caused by: org.apache.flink.runtime.client.JobExecutionException: Job execution failed. ... Caused by: java.util.concurrent.RejectedExecutionException: Task java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask@747eadd9[Not completed, task = java.util.concurrent.Executors$RunnableAdapter@4aecd5eb[Wrapped task = org.apache.iceberg.util.LockManagers$InMemoryLockManager$$Lambda$1289/0x00007ff730ab1630@425d9b97]] rejected from java.util.concurrent.ScheduledThreadPoolExecutor@3ad5a791[Terminated, pool size = 0, active threads = 0, queued tasks = 0, completed tasks = 1] at java.base/java.util.concurrent.ThreadPoolExecutor$AbortPolicy.rejectedExecution(ThreadPoolExecutor.java:2065) at java.base/java.util.concurrent.ThreadPoolExecutor.reject(ThreadPoolExecutor.java:833) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor.delayedExecute(ScheduledThreadPoolExecutor.java:340) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor.scheduleAtFixedRate(ScheduledThreadPoolExecutor.java:632) at java.base/java.util.concurrent.Executors$DelegatedScheduledExecutorService.scheduleAtFixedRate(Executors.java:819) at org.apache.iceberg.util.LockManagers$InMemoryLockManager.acquireOnce(LockManagers.java:220) at org.apache.iceberg.util.LockManagers$InMemoryLockManager.lambda$acquire$1(LockManagers.java:249) ``` ### Willingness to contribute - [ ] I can contribute a fix for this bug independently - [ ] I would be willing to contribute a fix for this bug with guidance from the Iceberg community - [ ] I cannot contribute a fix for this bug at this time -- 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] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
