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Download: retry-on-return-code.workflow.json

Retry Block

A Retry Block includes any number of jobs or instructions. If one of them fails then processing will be repeated from the beginning of the block.

Explanation:

• This workflow implements
  • an outer Retry Block to repeat execution,
  • an inner Try / Catch Block to handle specific exit codes of the job,
  • an If Instruction to decide about the handling of specific return codes.

Try Block

A The Try Block includes  inside a Try / Catch Instruction includes any number of jobs or instructions. If one of them fails then processing will be repeated from the beginning of the blockcontinued with the Catch Block.

Explanation:

• After a first job job1 the job2 should be restarted for a number of times if it fails with return code 1.
• The JS7 - Retry Instruction manages the retry capability and the intervals.
  • The properties of the Retry Instruction include to specify a common delay for any retries or to use individual delays per retry.
• The JS7 - Try / Catch Instruction 
  • executes any number of instructions and jobs within the Try Block.
    • Should the jobs complete successfully then processing will continue after the Catch Block.
    • Should jobs fail then the instructions and jobs of inside the Catch Block will be executed.

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The Catch Block is executed in case of failed instructions or jobs inside in a Try Block.

The solution makes use of an JS7 - If Instruction to apply different types of error handling depending on the return code reported by the failed job.

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