It worked after changing smart quotes! OMG!
Status: Green
Nodes: 16
Indices: 14
Memory: 4.8 GB / 15.5 GB
Total Shards: 25
Unassigned Shards: 0
Documents: 263,052
Data: 218.8 MB
Thank you so much @DavidTurner. You saved my week! Thanks.
I will dig this dump further:
Note all that extra junk
M-bM-^@M-^\that shouldn't be there.
Note:
I am crying because of using Webmin interface to edit files. Webmin text edit causes "smart" quote problem! Also elasticsearch does care about that.