RSS Feed/News Activity-triggered automatic jobs may execute concurrently without a documented concurrency contract

[ENXF NET]

Summary​

When activity-based job triggering is enabled, multiple overlapping job.php requests may execute different automatic jobs concurrently.

The existing atomic claim operations appear to prevent the same xf_job row or the same xf_cron_entry from being claimed simultaneously. They do not, however, serialise automatic queue execution as a whole.

I am not reporting that the same job row or cron entry is being claimed twice. The concern is concurrent execution...

Read more

Continue reading...