'Magento 2 Indexing

We have one Magento 2 project where we configured cron every min. Ideally the site has no change but still all cron jobs running too frequently.

Questions :

  1. How Magento consider to re-run a index even there is no change.
  2. Magento cron running synchronize or parallels way.
  3. How to prevent run indexing if there is no change any lock or anything Magento manage ?


Solution 1:[1]

If your indexer is update by schedule. then only changed data will be reindexed not all.

Sources

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Source: Stack Overflow

Solution Source
Solution 1 Narendra Singh