Re: Apache Solr Failover Support in Master-Slave Setup

2011-06-15 Thread Erick Erickson
"Make the master a slave of the slaves"... Sounds like an infinite loop to me ... You don't have to "bring the old master back online". Just leave the promoted slave as the new master forever and then create a new slave. If you have significant differences between hardware for master and slave, t

Re: Apache Solr Failover Support in Master-Slave Setup

2011-06-15 Thread Kyle Lee
Hi Erick, Thank you for the advice. Given what you've told us, we've modified our plan to include three physical boxes: one master indexer, and two slaves. I have a question, however. Suppose that the master node goes down and we promote the designated slave to take over. The new master node will

Re: Apache Solr Failover Support in Master-Slave Setup

2011-06-15 Thread Erick Erickson
More hardware ... Here's one scenario... If you set up a master and two slaves, and then front the slaves with a load balancer your system will be more robust. In the event a slave goes down, all search requests will be handled by the remaining slave while you create a new slave, have it replica

Apache Solr Failover Support in Master-Slave Setup

2011-06-15 Thread Kyle Lee
Hello, Our development team is currently looking into migrating our search system to Apache Solr, and we would greatly appreciate some advice on setup. We are indexing approximately two hundred million database rows. We add about a hundred thousand new rows throughout the day. These new database r