Tridion publishing - throttling issues

When publishing content, publication may remain in Throttling state. 
 

Try out these suggestions to help 

1. Increase the number of workers (configured as the Workers attribute of the Location elements) in the Content Deployer configuration file: cd_deployer_conf.xml. This increases CPU load and may require a hardware upgrade (more CPU cores).   
2. Increase the window size (configured as the WindowSize attribute of the Location elements) in the Content Deployer configuration file: cd_deployer_conf.xml. This makes deployment of content slower because items now have to wait in the Content Deployer queue.   
3. Decrease the total number of Publisher threads (configured as the TransportPriorityPoolSize attribute of the Workers element) in the Transport Service configuration file: cd_transport_conf.xml.es to prevent that the Transport Service is sending more Transport Packages than the Content Deployer can handle.   
4. Check TCMServiceHost.exe.config for CoreService throttling and follow the steps on this blog post on Throttling.

The Throttled state indicates that the Transport Service is sending more Transport Packages than the Content Deployer can handle.