Learnings.: macos spotlight indexing problem

Intermittent stopping of spotlight on macos mojave 2020/03/26

urgens-MacBook-Pro:~ urgensherpa$ sudo mdutil -a -i off

/:

2020-03-26 12:40:18.654 mdutil[750:14995] mdutil disabling Spotlight: / -> kMDConfigSearchLevelFSSearchOnly

 Indexing disabled.

urgens-MacBook-Pro:~ urgensherpa$ sudo launchctl unload -w /System/Library/LaunchDaemons/com.apple.metadata.mds.plist

/System/Library/LaunchDaemons/com.apple.metadata.mds.plist: Operation not permitted while System Integrity Protection is engaged

urgens-MacBook-Pro:~ urgensherpa$ sudo launchctl load -w /System/Library/LaunchDaemons/com.apple.metadata.mds.plist

/System/Library/LaunchDaemons/com.apple.metadata.mds.plist: service already loaded

urgens-MacBook-Pro:~ urgensherpa$ sudo mdutil -a -i on

/:

 Indexing enabled. 

Learnings.