The journalCommitInterval can be set interactively. After setting it, it should be possible to query the value to which it was set.

We have 48 shards, and since it must be set on each shard daemon individually, it's possible to have it set incorrectly on some vs. others.

Also, when the journal directory is a symlink to another filesystem, the default value of journalCommitInterval is supposed to change from 100 to 20 . We have done this symlink and would like to confirm what the current value is.