Why job execution not completed on first try

[sushantmahajan]

Hi,

I have overridden the default number of retries and reduced it to 1 as i don't want activiti to retry in case a job execution is not completed. I want to know what could be the possible reasons for job not getting on first attempt and within the interval before which the job expires.

[jbarrez]

A job failing can have multiple causes: logical error, an external system down, database exception or not responding …