On 8/6/14 1:15 AM, Mark Thomas wrote: > On 06/08/2014 01:34, Parth Patil wrote: >> Hi Friends, >> I am using DBCP2 in my project and I am pleased with the performance of the >> library. Though I am only able to provide a single mysql host in the >> connection string. What do I need to do inorder to make the DBCP connection >> pool replication aware ? > Write some code :). DBCP 2 is not replication aware. There was an > enhancement request for this [1] but I resolved it as WONTFIX on the > bases that: > <quote> > ...generally, failover requires some form of database replication and > databases that provide that tend to provide JDBC drivers that support > failover as well. > </quote> > >> I am going to use 1 master and 2 slaves in my >> setup. Am I correct in assuming that its possible to create connection pool >> over several mysql hosts ? > No, you are not correct. > >> I tried to use the replication aware mysql jdbc driver >> (com.mysql.jdbc.ReplicationDriver) > That is the correct way to do this. > >> but that doesn't seem to work and I am >> getting an exception. Following is my test code > <snip/> > >> Following is the exception that I am getting : >> >> [error] (run-main-0) java.lang.AbstractMethodError: >> com.mysql.jdbc.ReplicationConnection.isValid(I)Z > <snip/> > > DBCP2 uses JDBC4 (Java 1.6) and that is a new method introduced in that > release.
I think you mean JDBC 4.1, Java 1.7 for DBCP2. Phil > > You can avoid the call to that method by setting a validation query for > your connection pool. For MySQL the following should work: > /* ping */ SELECT 1 > > > Mark > > [1] https://issues.apache.org/jira/browse/DBCP-393 > > --------------------------------------------------------------------- > To unsubscribe, e-mail: user-unsubscr...@commons.apache.org > For additional commands, e-mail: user-h...@commons.apache.org > > --------------------------------------------------------------------- To unsubscribe, e-mail: user-unsubscr...@commons.apache.org For additional commands, e-mail: user-h...@commons.apache.org
