Hello all, I was testing how much time a pg_dump backup would take to get restored. Initially, I tried it with psql (on a backup taken with pg_dumpall). It took me about one hour. I felt that I should target for a recovery time of 15 minutes to half an hour. So I went through the blogs/documentation etc and switched to pg_dump and pg_restore. I tested only the database with the maximum volume of data (about 1.5 GB). With pg_restore -U postgres -v -d PROFICIENT --clean -Fc proficient.dmp it took about 45 minutes. I tried it with pg_restore -U postgres -j8 -v -d PROFICIENT --clean -Fc proficient.dmp Not much improvement there either. Have I missed something or 1.5 GB data on a machine with the following configuration will take about 45 minutes? There is nothing else running on the machine consuming memory or CPU. Out of 300 odd tables, about 10 tables have millions of records, rest are all having a few thousand records at most.
Here are the specs ( a pc class machine)-
PostgreSQL 8.4.3 on i686-pc-linux-gnu CentOS release 5.2 Intel(R) Pentium(R) D CPU 2.80GHz 2 GB RAM Storage is local disk.
Postgresql parameters (what I felt are relevant) - max_connections = 100 shared_buffers = 64MB work_mem = 16MB maintenance_work_mem = 16MB synchronous_commit on
Thank you for any suggestions. Jayadevan
DISCLAIMER:
"The information in this e-mail and any attachment is intended only for the person to whom it is addressed and may contain confidential and/or privileged material. If you have received this e-mail in error, kindly contact the sender and destroy all copies of the original communication. IBS makes no warranty, express or implied, nor guarantees the accuracy, adequacy or completeness of the information contained in this email or any attachment and is not liable for any errors, defects, omissions, viruses or for resultant loss or damage, if any, direct or indirect."
