> # Domain Partition: Configuration: Concurrent Contraints

> Configuration Options Related Tasks Related Topics

> Use this page to define the concurrent constraints for this domain partition.

> NOTE: WebLogic Server Multitenant domain partitions, resource groups, resource group templates, and virtual targets are deprecated in WebLogic Server 12.2.1.4.0. The related Console and help pages will be removed in the next release.

> Long-running tasks submitted to the managed executor service (MES) and managed scheduled executor service (MSES), and by calling the `newThread()` method of the managed thread factory (MTF), need to create new threads that will not be managed as a part of the self-tuning thread pool. Because an excessive number of running threads can have a negative affect on server performance and stability, you can specify the maximum number of running threads that are created by the concurrency utilities API.

> #### Configuration Options

> Name | Description
> --- | ---
> Max Concurrent New Threads | The maximum number of running threads that can be created by all the Managed Thread Factories in the partition on the current server. MBean Attribute: `PartitionMBean.MaxConcurrentNewThreads` Minimum value: `0` Maximum value: `65534`
> Max Concurrent Long Requests | The maximum number of running long-running requests that can be submitted to all the Managed Executor Services or Managed Scheduled Executor Services in the partition on the current server. MBean Attribute: `PartitionMBean.MaxConcurrentLongRunningRequests`

> Minimum value: `0`

> Maximum value: `65534`

> Related Tasks

> - Configure domain partition concurrent constraints

> Related Topics

> - Configuring Concurrent Managed Objects