On 1/29/2014 10:46 PM, Amitava Kundu1 wrote:
Hi,
We are using embedded derby 10.5.1.1 in our product, This derby database is
used as regular RDBMS where lot of insert, delete and select happens, There
are business entities each of its occurrence could be of size 10 GB and
upward e.g. a huge log file data.
In our application, we use cascade delete and also has referential
integrity constraints ON.
This application runs on 64 bit Linux with 8 GB RAM allocated to JVM.
Similar time is observed in our development Windows box.
It takes more than 3 hour to delete those entities. During this time all
the relevant tables stay locked and no other operation is feasible.
We'd like know what could be different options/ strategy be adopted for:
Speeding up the delete process
Ability to other database activities in parallel
Thanks
Amitava Kundu
here is a link about diagnosing performance issues that may help:
http://wiki.apache.org/db-derby/PerformanceDiagnosisTips
