after updating to version OJS 3.3.0-13c successfully we have found that when we validate our site with validator.oaipmh.com returns everything OK except the section “ListIdentifiers” that always returns “Request time too much 14.657”.
I have tried to change the parameter oai_max_records from 50 to 30, then to 20 and 10 but it always returns the same error.
Meanwhile, could you please open the file lib/pkp/classes/oai/OAIStruct.inc.php and update temporarily the value at var $maxIdentifiers = 500; to something lower? Then let us know if it solves your problem.
If you’re using MySQL, could you please show us the output for the following query? You’ll just need to replace the NAME_OF_YOUR_DATABASE.
SELECT s.table_name, t.engine, t.table_rows, s.non_unique, s.index_name, s.seq_in_index, s.column_name
FROM information_schema.tables t
INNER JOIN information_schema.statistics s USING (table_schema, table_name)
WHERE s.table_schema = 'NAME_OF_YOUR_DATABASE'
ORDER BY 1, 5, 6