>From: keshav upadhyaya >Subject: What is the role of #fsync and #synchronous_commit in configuration file . > >Hi , >I want to imporve the performance for inserting of huge data in my table . >I have only one idex in table . > >First question - i want to know the role played by > > #fsync = on and > #synchronous_commit = on > >I want to understand more in details what exactly had happened one is made them "off" , >is it dangerous to do this ? as it will not sync the data in each commit . The settings are described in the docs: http://www.postgresql.org/docs/8.4/interactive/runtime-config-wal.html If you turn fsync off, you risk data loss in case of power or hardware failure. Dave -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
