When I run indexer:status from the command line to look at the status of my indexes I notice some are like this:
| Catalog Product Rule | Ready | Schedule | working (7414 in backlog) | 2019-02-19 01:37:48 |
What does working xxxx in backlog mean? Is this something I should be worried about. 3 of my indexes are reporting that atm.
What table is the backlog in or where does this backlog reside? The last question// Is it safe to truncate the cron_schedule table?