Effective in version 10.2, if you deploy multiple mapping jobs or workflow mapping tasks at the same time, the Data Integration Service queues the jobs in a persisted queue and runs the jobs when resources are available. You can view the current status of mapping jobs on the Monitor tab of the Administrator tool.
All queues are persisted by default. If the Data Integration Service node shuts down unexpectedly, the queue does not fail over when the Data Integration Service fails over. The queue remains on the Data Integration Service machine, and the Data Integration Service resumes processing the queue when you restart it.
By default, each queue can hold 10,000 jobs at a time. When the queue is full, the Data Integration Service rejects job requests and marks them as failed. When the Data Integration Service starts running jobs in the queue, you can deploy additional jobs.
For more information, see the "Queuing" chapter in the
Informatica Big Data Management 10.2 Administrator Guide