[jira] [Created] (IGNITE-11966) Using AdaptiveLoadBalancingSpi without IgniteConfiguration.setIncludeEventTypes(EventType.EVT_TASK_FINISHED, EventType.EVT_TASK_FAILED) leads to memory leak

["Andrey Aleksandrov (JIRA)" <ji...@apache.org>]

Andrey Aleksandrov created IGNITE-11966:
-------------------------------------------

             Summary: Using AdaptiveLoadBalancingSpi without IgniteConfiguration.setIncludeEventTypes(EventType.EVT_TASK_FINISHED,  EventType.EVT_TASK_FAILED) leads to memory leak
                 Key: IGNITE-11966
                 URL: https://issues.apache.org/jira/browse/IGNITE-11966
             Project: Ignite
          Issue Type: Bug
    Affects Versions: 2.7.5
            Reporter: Andrey Aleksandrov
             Fix For: 2.8
         Attachments: Top_Consumers.zip

You can use in debug mode any of tests related to AdaptiveLoadBalancingSpi like GridAdaptiveLoadBalancingSpiSelfTest.

In case if you don't subscribe on EventType.EVT_TASK_FINISHED,  EventType.EVT_TASK_FAILED then next code will be never called:



case EVT_TASK_FINISHED:
case EVT_TASK_FAILED: {
 TaskEvent taskEvt = (TaskEvent)evt;

 taskTops.remove(taskEvt.taskSessionId()); //this

As a result, you will see the growth of memory usage.

[^Top_Consumers.zip]


 if (log.isDebugEnabled())
 log.debug("Removed task topology from topology cache for session: " +
 taskEvt.taskSessionId());

 break;
}



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