Forwarded from pgadmin-support – wrong list From: Ashesh Vashi [mailto:ashesh.va...@enterprisedb.com] Sent: Mittwoch, 4. Juli 2018 12:14 To: Boblitz John <john.bobl...@bertschi.com> Cc: pgadmin-support <pgadmin-supp...@postgresql.org> Subject: Re: Unable to Connect to DB Instance
On Wed, Jul 4, 2018, 15:19 Boblitz John <john.bobl...@bertschi.com<mailto:john.bobl...@bertschi.com>> wrote: Good Morning, Beginning yesterday morning, users have been unable to fully connect to our DB Instance. 1. At the time of the initial report – I was connected to the DB via pgAdmin and could perform queries without problem. 2. Users reported messages similar to “could not open file "global/11801": No such file or directory” 3. At that time, connection logging was turned off and there were no messages in the log files. 4. As this is a development environment, I turned logging on in the config and restarted the DB 5. After restart, neither I, nor the Users could fully reconnect. 6. I have performed a SYS Level backup (tar of the whole postgres directory tree) 7. I cannot perform a DB level Backup (same errors occur) System Details Linux Debian 7.11 Postgres 9.1 (9.1.24lts-0+d) Please send your queries to pgsql-gene...@postgresql.org<mailto:pgsql-gene...@postgresql.org> for database server issues. This is a pgAdmin support list. -- Thanks, Ashesh It appears that we can connect to the DB Server itself as I get “connection received” and “connection authorized” – but when trying to access the DB itself, several errors are raised (see below). I am assuming that some internals are no longer consistent – the file “global/11801” for instance really does not exist on the system. Questions: 1. Is there any way to recover from this (backup is unfortunately rather old) 2. What are possible causes? I’d like to prevent this from happening on my production servers. ** I am aware that we are on older releases, and yes, we plan to migrate to more current releases “soon” ™ … Thanks in advance. John Boblitz Exceprt from Log: 2018-07-04 09:15:13 CEST 192.168.250.50(28559) [unknown]LOG: connection received: host=192.168.250.50 port=28559 2018-07-04 09:15:14 CEST 192.168.250.50(28559) postgresLOG: connection authorized: user=dbadmin database=postgres 2018-07-04 09:15:14 CEST 192.168.250.50(28559) postgresERROR: could not open file "global/11801": No such file or directory 2018-07-04 09:15:14 CEST 192.168.250.50(28559) postgresSTATEMENT: SELECT usecreatedb, usesuper, CASE WHEN usesuper THEN pg_postmaster_start_time() ELSE NULL END as upsince, CASE WHEN usesuper THEN pg_conf_load_time() ELSE NULL END as confloadedsince, CASE WHEN usesuper THEN pg_is_in_recovery() ELSE NULL END as inrecovery, CASE WHEN usesuper THEN pg_last_xlog_receive_location() ELSE NULL END as receiveloc, CASE WHEN usesuper THEN pg_last_xlog_replay_location() ELSE NULL END as replayloc, CASE WHEN usesuper THEN pg_last_xact_replay_timestamp() ELSE NULL END as replay_timestamp, CASE WHEN usesuper AND pg_is_in_recovery() THEN pg_is_xlog_replay_paused() ELSE NULL END as isreplaypaused FROM pg_user WHERE usename=current_user 2018-07-04 09:15:19 CEST 192.168.250.50(28559) postgresERROR: could not open file "global/11801": No such file or directory 2018-07-04 09:15:19 CEST 192.168.250.50(28559) postgresSTATEMENT: SELECT rolcreaterole, rolcreatedb FROM pg_roles WHERE rolname = current_user; 2018-07-04 09:15:22 CEST 192.168.250.50(28561) [unknown]LOG: connection received: host=192.168.250.50 port=28561 2018-07-04 09:15:22 CEST 192.168.250.50(28561) g11BaseLOG: connection authorized: user=dbadmin database=g11Base 2018-07-04 09:15:23 CEST 192.168.250.50(28561) g11BaseERROR: could not open file "pg_tblspc/24579/PG_9.1_201105231/24580/11866": No such file or directory 2018-07-04 09:15:23 CEST 192.168.250.50(28561) g11BaseSTATEMENT: SELECT CASE WHEN nspname LIKE E'pg\\_temp\\_%' THEN 1 WHEN (nspname LIKE E'pg\\_%') THEN 0 ELSE 3 END AS nsptyp, nsp.nspname, nsp.oid, pg_get_userbyid(nspowner) AS namespaceowner, nspacl, description, has_schema_privilege(nsp.oid, 'CREATE') as cancreate, (SELECT array_agg(label) FROM pg_seclabels sl1 WHERE sl1.objoid=nsp.oid) AS labels, (SELECT array_agg(provider) FROM pg_seclabels sl2 WHERE sl2.objoid=nsp.oid) AS providers FROM pg_namespace nsp LEFT OUTER JOIN pg_description des ON (des.objoid=nsp.oid AND des.classoid='pg_namespace'::regclass) WHERE NOT ((nspname = 'pg_catalog' AND EXISTS (SELECT 1 FROM pg_class WHERE relname = 'pg_class' AND relnamespace = nsp.oid LIMIT 1)) OR (nspname = 'pgagent' AND EXISTS (SELECT 1 FROM pg_class WHERE relname = 'pga_job' AND relnamespace = nsp.oid LIMIT 1)) OR (nspname = 'information_schema' AND EXISTS (SELECT 1 FROM pg_class WHERE relname = 'tables' AND relnamespace = nsp.oid LIMIT 1)) OR (nspname LIKE '_%' AND EXISTS (SELECT 1 FROM pg_proc WHERE proname='slonyversion' AND pronamespace = nsp.oid LIMIT 1)) ) AND nspname NOT LIKE E'pg\\_temp\\_%'AND nspname NOT LIKE E'pg\\_toast_temp\\_%' ORDER BY 1, nspname
