HLFH [1] filed a deletion request for elasticsearch17 [2]: Elasticsearch 1 has reached EOL since more than 4 years. Now unsafe package. Better to use elasticsearch (version 8) or elasticsearch7 AUR or even the opensearch fork but not such an old version.
[1] https://aur.archlinux.org/account/HLFH/ [2] https://aur.archlinux.org/pkgbase/elasticsearch17/