This was on fatcat-prod-vm (2TB disk). time ./fatcat_import.py import-issn /srv/fatcat/datasets/journal_extra_metadata.csv Processed 53300 lines, inserted 53283, updated 0. real 0m32.463s user 0m8.716s sys 0m0.284s time parallel --bar --pipepart -j8 -a /srv/fatcat/datasets/public_profiles_1_2_json.all.json ./fatcat_import.py import-orcid - Processed 48900 lines, inserted 48731, updated 0. <= these numbers times 80x 100% 80:0=0s real 10m20.598s user 26m16.544s sys 1m40.284s time xzcat /srv/fatcat/datasets/crossref-works.2018-01-21.json.xz | time parallel -j20 --round-robin --pipe ./fatcat_import.py import-crossref - /srv/fatcat/datasets/20180216.ISSN-to-ISSN-L.txt /srv/fatcat/datasets/release_ids.ia_munge_20180908.sqlite3 Processed 4679900 lines, inserted 3755867, updated 0. 107730.08user 4110.22system 16:31:25elapsed 188%CPU (0avgtext+0avgdata 447496maxresident)k 77644160inputs+361948352outputs (105major+49094767minor)pagefaults 0swaps => 16.5 hours, faster! select count(id) from release_ident; => 75106713 kernel/system crashed after first file import (!), so don't have numbers from that. Table sizes at this point: select count(id) from file_ident; => 6334606 Size: 389.25G table_name | table_size | indexes_size | total_size --------------------------------------------------------------+------------+--------------+------------ "public"."release_ref" | 170 GB | 47 GB | 217 GB "public"."release_rev" | 44 GB | 21 GB | 65 GB "public"."release_contrib" | 19 GB | 20 GB | 39 GB "public"."release_edit" | 6671 MB | 6505 MB | 13 GB "public"."work_edit" | 6671 MB | 6505 MB | 13 GB "public"."release_ident" | 4892 MB | 5875 MB | 11 GB "public"."work_ident" | 4892 MB | 5874 MB | 11 GB "public"."work_rev" | 3174 MB | 2936 MB | 6109 MB "public"."file_rev_url" | 3634 MB | 1456 MB | 5090 MB "public"."file_rev" | 792 MB | 1281 MB | 2073 MB "public"."abstracts" | 1665 MB | 135 MB | 1800 MB "public"."file_edit" | 565 MB | 561 MB | 1126 MB "public"."file_release" | 380 MB | 666 MB | 1045 MB "public"."file_ident" | 415 MB | 496 MB | 911 MB "public"."creator_rev" | 371 MB | 457 MB | 828 MB "public"."creator_edit" | 347 MB | 353 MB | 700 MB "public"."creator_ident" | 255 MB | 305 MB | 559 MB "public"."release_rev_abstract" | 183 MB | 237 MB | 421 MB "public"."changelog" | 122 MB | 126 MB | 247 MB "public"."editgroup" | 138 MB | 81 MB | 219 MB "public"."container_rev" | 52 MB | 38 MB | 89 MB "public"."container_edit" | 32 MB | 30 MB | 62 MB "public"."container_ident" | 24 MB | 28 MB | 52 MB relname | too_much_seq | case | rel_size | seq_scan | idx_scan ----------------------+--------------+------+--------------+----------+---------- release_edit | 0 | OK | 6993084416 | 0 | 0 container_rev | 0 | OK | 54124544 | 0 | 0 creator_ident | 0 | OK | 266919936 | 0 | 0 creator_edit | 0 | OK | 363921408 | 0 | 0 work_rev | 0 | OK | 3327262720 | 0 | 0 creator_rev | 0 | OK | 388726784 | 0 | 0 work_ident | 0 | OK | 5128560640 | 0 | 0 work_edit | 0 | OK | 6993108992 | 0 | 0 container_ident | 0 | OK | 25092096 | 0 | 0 file_edit | 0 | OK | 598278144 | 0 | 0 container_edit | 0 | OK | 33857536 | 0 | 0 changelog | 0 | OK | 127549440 | 0 | 0 abstracts | -4714 | OK | 1706713088 | 0 | 4714 file_release | -13583 | OK | 401752064 | 0 | 13583 file_rev_url | -13583 | OK | 3832389632 | 0 | 13583 editgroup | -74109 | OK | 144277504 | 0 | 74109 release_contrib | -76699 | OK | 20357849088 | 0 | 76699 release_ref | -76700 | OK | 183009157120 | 3 | 76703 release_rev_abstract | -76939 | OK | 192102400 | 0 | 76939 release_rev | -77965 | OK | 47602647040 | 0 | 77965 file_ident | -100089 | OK | 438255616 | 3 | 100092 release_ident | -152809 | OK | 5128617984 | 0 | 152809 file_rev | -440780 | OK | 837705728 | 0 | 440780 (23 rows) Continuing imports: zcat /srv/fatcat/datasets/2018-08-27-2352.17-matchcrossref.insertable.json.gz | pv -l | time parallel -j12 --round-robin --pipe ./fatcat_import.py import-matched - => HTTP response body: {"message":"duplicate key value violates unique constraint \"file_edit_editgroup_id_ident_id_key\""}