> Tom Tom wrote: > > Hello, > > > > We have a very strange problem when restoring a database on Windows XP. > > The PG version is 8.1.10 > > The backup was made with the pg_dump on the same machine. > > > > pg_restore -F c -h localhost -p 5432 -U postgres -d "configV3" -v > "c:\Share\POSTGRES.backup" > > pg_restore: connecting to database for restore > > Password: > > pg_restore: creating SCHEMA public > > pg_restore: creating COMMENT SCHEMA public > > pg_restore: creating PROCEDURAL LANGUAGE plpgsql > > pg_restore: creating SEQUENCE hi_value > > pg_restore: executing SEQUENCE SET hi_value > > pg_restore: creating TABLE hibconfigelement > > pg_restore: creating TABLE hibrefconfigbase > > pg_restore: creating TABLE hibrefconfigreference > > pg_restore: creating TABLE hibtableattachment > > pg_restore: creating TABLE hibtableattachmentxmldata > > pg_restore: creating TABLE hibtableelementversion > > pg_restore: creating TABLE hibtableelementversionxmldata > > pg_restore: creating TABLE hibtablerootelement > > pg_restore: creating TABLE hibtablerootelementxmldata > > pg_restore: creating TABLE hibtableunversionedelement > > pg_restore: creating TABLE hibtableunversionedelementxmldata > > pg_restore: creating TABLE hibtableversionedelement > > pg_restore: creating TABLE hibtableversionedelementxmldata > > pg_restore: creating TABLE versionedelement_history > > pg_restore: creating TABLE versionedelement_refs > > pg_restore: restoring data for table "hibconfigelement" > > pg_restore: restoring data for table "hibrefconfigbase" > > pg_restore: restoring data for table "hibrefconfigreference" > > pg_restore: restoring data for table "hibtableattachment" > > pg_restore: restoring data for table "hibtableattachmentxmldata" > > pg_restore: [archiver (db)] could not execute query: no result from server > > pg_restore: *** aborted because of error > > > > The restore unexpectedly fails on hibtableattachmentxmldata table, which is as > follows: > > > > CREATE TABLE hibtablerootelementxmldata > > ( > > xmldata_id varchar(255) NOT NULL, > > xmldata text > > ) > > WITHOUT OIDS; > > > > and contains thousands of rows with text field having even 40MB, encoded in > UTF8. > > > > The database is created as follows: > > > > CREATE DATABASE "configV3" > > WITH OWNER = postgres > > ENCODING = 'UTF8' > > TABLESPACE = pg_default; > > > > > > The really strange is that the db restore runs OK on linux (tested on RHEL4, > PG version 8.1.9). > > The pg_restore output is _not_ very descriptive but I suspect some dependency > on OS system libraries (encoding), or maybe it is also related to the size of > the CLOB field. Anyway we are now effectively without any possibility to backup > our database, which is VERY serious. > > > > Have you ever came across something similar to this? > > Check what you have in your server logs (pg_log directory) and the > eventlog around this time. There is probably a better error message > available there. > > //Magnus > Thank you for your hint. The server logs does not display any errors, except for 2008-08-08 11:14:16 CEST LOG: checkpoints are occurring too frequently (14 seconds apart) 2008-08-08 11:14:16 CEST HINT: Consider increasing the configuration parameter "checkpoint_segments". 2008-08-08 11:14:38 CEST LOG: checkpoints are occurring too frequently (22 seconds apart) 2008-08-08 11:14:38 CEST HINT: Consider increasing the configuration parameter "checkpoint_segments". 2008-08-08 11:14:57 CEST LOG: checkpoints are occurring too frequently (19 seconds apart) 2008-08-08 11:14:57 CEST HINT: Consider increasing the configuration parameter "checkpoint_segments". 2008-08-08 11:15:14 CEST LOG: checkpoints are occurring too frequently (17 seconds apart) 2008-08-08 11:15:14 CEST HINT: Consider increasing the configuration parameter "checkpoint_segments". 2008-08-08 11:15:36 CEST LOG: checkpoints are occurring too frequently (22 seconds apart) 2008-08-08 11:15:36 CEST HINT: Consider increasing the configuration parameter "checkpoint_segments". 2008-08-08 11:15:56 CEST LOG: checkpoints are occurring too frequently (20 seconds apart) 2008-08-08 11:15:56 CEST HINT: Consider increasing the configuration parameter "checkpoint_segments". 2008-08-08 11:16:16 CEST LOG: checkpoints are occurring too frequently (20 seconds apart) 2008-08-08 11:16:16 CEST HINT: Consider increasing the configuration parameter "checkpoint_segments". The warnings disappeared when the "checkpoint_segments" value was increased to 10. The restore still failed however :( The Windows eventlogs show no errors, just informational messages about starting/stopping the pg service. Tomas
