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Type:
Bug
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Resolution: Fixed
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Priority:
Major - P3
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Affects Version/s: 4.5.1
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Component/s: Error Handling
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Fully Compatible
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Not Needed
During my integration tests, I setup a 3-node replica-set in docker, and connect to it with Java client.
Often I get this exception in the logs:
Exception in thread "cluster-ClusterId{value='62415548404dc25237ffe99d', description='null'}-127.0.0.1:55059" Exception in thread "cluster-ClusterId{value='62415548404dc25237ffe99d', description='null'}-127.0.0.1:55058" java.util.concurrent.RejectedExecutionException: Task java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask@39dcce0f[Not completed, task = java.util.concurrent.Executors$RunnableAdapter@3324a57f[Wrapped task = com.mongodb.internal.connection.DefaultConnectionPool$BackgroundMaintenanceManager$$Lambda$194/0x00000008003b9440@3de34d6b]] rejected from java.util.concurrent.ScheduledThreadPoolExecutor@7cde4750[Terminated, pool size = 0, active threads = 0, queued tasks = 0, completed tasks = 0] at java.base/java.util.concurrent.ThreadPoolExecutor$AbortPolicy.rejectedExecution(ThreadPoolExecutor.java:2055) at java.base/java.util.concurrent.ThreadPoolExecutor.reject(ThreadPoolExecutor.java:825) 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:785) at com.mongodb.internal.connection.DefaultConnectionPool$BackgroundMaintenanceManager.start(DefaultConnectionPool.java:1419) at com.mongodb.internal.connection.DefaultConnectionPool$StateAndGeneration.ready(DefaultConnectionPool.java:1500) at com.mongodb.internal.connection.DefaultConnectionPool.ready(DefaultConnectionPool.java:270) at com.mongodb.internal.connection.DefaultSdamServerDescriptionManager.lambda$update$0(DefaultSdamServerDescriptionManager.java:72) at com.mongodb.internal.connection.BaseCluster.withLock(BaseCluster.java:271) at com.mongodb.internal.connection.AbstractMultiServerCluster.withLock(AbstractMultiServerCluster.java:50) at com.mongodb.internal.connection.DefaultSdamServerDescriptionManager.update(DefaultSdamServerDescriptionManager.java:60) at com.mongodb.internal.connection.DefaultServerMonitor$ServerMonitorRunnable.run(DefaultServerMonitor.java:165) at java.base/java.lang.Thread.run(Thread.java:829) java.util.concurrent.RejectedExecutionException: Task java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask@3912c812[Not completed, task = java.util.concurrent.Executors$RunnableAdapter@782fc229[Wrapped task = com.mongodb.internal.connection.DefaultConnectionPool$BackgroundMaintenanceManager$$Lambda$194/0x00000008003b9440@7c1059f4]] rejected from java.util.concurrent.ScheduledThreadPoolExecutor@e59b1a6[Terminated, pool size = 0, active threads = 0, queued tasks = 0, completed tasks = 0] at java.base/java.util.concurrent.ThreadPoolExecutor$AbortPolicy.rejectedExecution(ThreadPoolExecutor.java:2055) at java.base/java.util.concurrent.ThreadPoolExecutor.reject(ThreadPoolExecutor.java:825) 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$DelegatedScheduledExecutorService.scheduleAtFixedRate(Executors.java:785) at com.mongodb.internal.connection.DefaultConnectionPool$BackgroundMaintenanceManager.start(DefaultConnectionPool.java:1419) at com.mongodb.internal.connection.DefaultConnectionPool$StateAndGeneration.ready(DefaultConnectionPool.java:1500) at com.mongodb.internal.connection.DefaultConnectionPool.ready(DefaultConnectionPool.java:270) at com.mongodb.internal.connection.DefaultSdamServerDescriptionManager.lambda$update$0(DefaultSdamServerDescriptionManager.java:72) at com.mongodb.internal.connection.BaseCluster.withLock(BaseCluster.java:271) at com.mongodb.internal.connection.AbstractMultiServerCluster.withLock(AbstractMultiServerCluster.java:50) at com.mongodb.internal.connection.DefaultSdamServerDescriptionManager.update(DefaultSdamServerDescriptionManager.java:60) at com.mongodb.internal.connection.DefaultServerMonitor$ServerMonitorRunnable.run(DefaultServerMonitor.java:165) at java.base/java.lang.Thread.run(Thread.java:829)
Sometimes this exception manages to fail my test raising to the main junit thread. other times it stays in the background thread that launched the task. It's really weird.
Versions:
- MongoDB 4.4.6
- Java 11 / Driver 4.5.1
- OS X and Linux
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