Recovering Job execution in case of failure
About this task
Talend Studio along with Talend Administration Center offers the concept of recovery checkpoints as Job execution restore facility. Checkpoints are taken in anticipation of the potential need to restart a Job execution beyond its starting point.
General concept
Job execution processes can be time-consuming, as are backup and restore operations. If checkpointing is possible, this will minimize the amount of time and effort wasted when the process of Job execution is interrupted by failure.
With Talend Studio, you can set checkpoints in your Job design at specified intervals (On Subjob Ok and On SubJob Error connections) in terms of bulks of the data flow.
With Talend Administration Center, and in case of failure during Job execution, the execution process can be restarted from the latest checkpoint previous to the failure rather than from the beginning.
A two-step procedure
About this task
The only prerequisite for this facility offered in Talend Studio , is to have trigger connections of the types On SubJob OK and On SubJob Error in your Job design.
To be able to recover Job execution in case of failure, you need to: