Occurs when the memory communication buffers for a query with multiple Parallelism operators become full, resulting in one of the operators writing to TempDB. If this happens multiple times in a single query plan the query performance is impacted. Use this event in conjunction with any of the *_showplan events to determine which operation in the generated plan is causing the exchange spill using the node_id field
XeSqlPkg_exchange_spill - child subclasses in ROOT\WMI
'Occurs when the memory communication buffers for a query with multiple Parallelism operators become full, resulting in one of the operators writing to TempDB. If this happens multiple times in a single query plan the query performance is impacted. Use this event in conjunction with any of the *_showplan events to determine which operation in the generated plan is causing the exchange spill using the node_id field'