$ sudo -u www-data ./occ nextant:index
nextant v1.0.8
nextant is currently locked by another indexing script (command line or background job)
last tick from this script was 502 second(s) ago
If you think the other script exited improperly, you can use ./occ nextant:index --unlock to unlock
####Unlock nextant
$ sudo -u www-data ./occ nextant:index --unlock
nextant v1.0.8
Nextant is not locked anymore.
You can stop the index and start it again later, it will keep your progression.
Also, if you’re low on resources and Solr keep crashing, you should try not to use Tesseract but only Solr