https://github.com/openstreetmap/Nominatim/issues/409

I met the same error in postgres_10.3 and my server details: CentOS7.4, 128GB RAM, 3TB HD.

As suggested using following cmd to indexing: ./utils/setup.php --index --create-search-indices

How to fix the same permenently? Is there any postgres config to solve the same?

asked 08 Oct, 11:52

Rajavelu_M's gravatar image

Rajavelu_M
253344057
accept rate: 33%

edited 08 Oct, 11:55


Error "buffer 82340 is not owned by resource owner"

That issue also came up in https://github.com/openstreetmap/Nominatim/issues/1168 again. See my answer there. Root cause is still a mystery. Restarting the import with less threads seems to work.

permanent link

answered 08 Oct, 12:51

mtmail's gravatar image

mtmail
2.0k435
accept rate: 25%

@mtmail: Thanks for your answer. 1 doubt: i just running ./utils/setup.php --index --create-search-indices after met that err. Is it enough?

OR Need to run ./utils/setup.php --index --create-country-names --index-noanalyse (From Lonvia's reply in that thread #1168) ?

(08 Oct, 14:22) Rajavelu_M

@mtmail Thanks & sorry for asking again. My initial import failed while indexing 30th rank. now i am running ./utils/setup.php --index --create-search-indices Is it enough? or need to run ./utils/setup.php --index --create-country-names --index-noanalyse again ?

Note: Its running for more than 6+ hrs. Checked my old setup logs(import planet data few weeks before), Create Search indices takes less than 3 hrs only

(09 Oct, 06:04) Rajavelu_M
1

(7h later) Is the index creation still running, do you see CPU (top) and disc access (iotop). Do you see index related queries blocked by other sessions in select pid, usename, pg_blocking_pids(pid) as blocked_by, query as blocked_query from pg_stat_activity where cardinality(pg_blocking_pids(pid)) > 0;?

(09 Oct, 13:33) mtmail

Reason for slowness is drop index is waiting for autovacuum completion.

blocked_pid | blocked_user | blocking_pid | blocking_user | blocked_statement | current_statement_in_blocking_process
-------------+--------------+--------------+---------------+----------------------------------------------+------------------------------------------------------------------ 721 | nomiuser | 6839 | | DROP INDEX IF EXISTS idx_placex_rank_search; | autovacuum: VACUUM ANALYZE public.placex (to prevent wraparound)

(12 Oct, 09:11) Rajavelu_M

You can kill the autovacuum. It runs regularly in the background (well, foreground in this case it seems) and will restart automatically. https://blog.sleeplessbeastie.eu/2014/07/23/how-to-terminate-postgresql-sessions/

(12 Oct, 11:12) mtmail
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question asked: 08 Oct, 11:52

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