We have a cluster of 3 Mongo 3.2.13 instances running with journaling enabled, with hundreds of DBs and collections which are accessed simultaneously.
We are checking the option to disable journaling, to improve the cluster's performance. According to the docs, WiredTiger performs a checkpoint every 60 seconds, so in a case of crash we should only loose up to 60 seconds of data. We are ok with that.
Are there any other risks / disadvantages for disabling journaling?