yeah there is a hack https://issues.apache.org/jira/browse/SOLR-1154?focusedCommentId=12708316&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#action_12708316
On Thu, May 14, 2009 at 6:07 PM, nk 11 <nick.cass...@gmail.com> wrote: > sorry for the mail. I wanted to hit reply :( > > On Thu, May 14, 2009 at 3:37 PM, nk 11 <nick.cass...@gmail.com> wrote: >> >> oh, so the configuration must be manualy changed? >> Can't something be passed at (re)start time? >> >> 2009/5/14 Noble Paul നോബിള് नोब्ळ् <noble.p...@corp.aol.com> >>> >>> On Thu, May 14, 2009 at 4:07 PM, nk 11 <nick.cass...@gmail.com> wrote: >>> > Ok so the VIP will point to the new master. but what makes a slave >>> > promoted >>> > to a master? Only the fact that it will receive add/update requests? >>> > And I suppose that this "hot" promotion is possible only if the slave >>> > is >>> > convigured as master also... >>> right.. By default you can setup all slaves to be master also. It does >>> not cost anything if it is not serving any requests. >>> >>> so , if you have such a setting you will have to disable that slave to >>> be a slave and restart it and you will have to make the VIP point to >>> this new slave as master. >>> >>> so hot promotion is still not possible. >>> > >>> > 2009/5/14 Noble Paul നോബിള് नोब्ळ् <noble.p...@corp.aol.com> >>> >> >>> >> ideally , we don't do that. >>> >> you can just keep the master host behind a VIP so if you wish to >>> >> change the master make the VIP point to the new host >>> >> >>> >> On Wed, May 13, 2009 at 10:52 PM, nk 11 <nick.cass...@gmail.com> >>> >> wrote: >>> >> > This is more interesting.Such a procedure would involve taking down >>> >> > and >>> >> > reconfiguring the slave? >>> >> > >>> >> > On Wed, May 13, 2009 at 7:55 PM, Bryan Talbot >>> >> > <btal...@aeriagames.com>wrote: >>> >> > >>> >> >> Or ... >>> >> >> >>> >> >> 1. Promote existing slave to new master >>> >> >> 2. Add new slave to cluster >>> >> >> >>> >> >> >>> >> >> >>> >> >> >>> >> >> -Bryan >>> >> >> >>> >> >> >>> >> >> >>> >> >> >>> >> >> >>> >> >> On May 13, 2009, at May 13, 9:48 AM, Jay Hill wrote: >>> >> >> >>> >> >> - Migrate configuration files from old master (or backup) to new >>> >> >> master. >>> >> >>> - Replicate from a slave to the new master. >>> >> >>> - Resume indexing to new master. >>> >> >>> >>> >> >>> -Jay >>> >> >>> >>> >> >>> On Wed, May 13, 2009 at 4:26 AM, nk 11 <nick.cass...@gmail.com> >>> >> >>> wrote: >>> >> >>> >>> >> >>> Nice. >>> >> >>>> What if the master fails permanently (like a disk crash...) and >>> >> >>>> the >>> >> >>>> new >>> >> >>>> master is a clean machine? >>> >> >>>> 2009/5/13 Noble Paul നോബിള് नोब्ळ् <noble.p...@corp.aol.com> >>> >> >>>> >>> >> >>>> On Wed, May 13, 2009 at 12:10 PM, nk 11 <nick.cass...@gmail.com> >>> >> >>>> wrote: >>> >> >>>>> >>> >> >>>>>> Hello >>> >> >>>>>> >>> >> >>>>>> I'm kind of new to Solr and I've read about replication, and >>> >> >>>>>> the >>> >> >>>>>> fact >>> >> >>>>>> >>> >> >>>>> that a >>> >> >>>>> >>> >> >>>>>> node can act as both master and slave. >>> >> >>>>>> I a replica fails and then comes back on line I suppose that it >>> >> >>>>>> will >>> >> >>>>>> >>> >> >>>>> resyncs >>> >> >>>>> >>> >> >>>>>> with the master. >>> >> >>>>>> >>> >> >>>>> right >>> >> >>>>> >>> >> >>>>>> >>> >> >>>>>> But what happnes if the master fails? A slave that is >>> >> >>>>>> configured as >>> >> >>>>>> >>> >> >>>>> master >>> >> >>>>> >>> >> >>>>>> will kick in? What if that slave is not yes fully sync'ed with >>> >> >>>>>> the >>> >> >>>>>> >>> >> >>>>> failed >>> >> >>>> >>> >> >>>>> master and has old data? >>> >> >>>>>> >>> >> >>>>> if the master fails you can't index the data. but the slaves >>> >> >>>>> will >>> >> >>>>> continue serving the requests with the last index. You an bring >>> >> >>>>> back >>> >> >>>>> the master up and resume indexing. >>> >> >>>>> >>> >> >>>>> >>> >> >>>>>> What happens when the original master comes back on line? He >>> >> >>>>>> will >>> >> >>>>>> >>> >> >>>>> remain >>> >> >>>> >>> >> >>>>> a >>> >> >>>>> >>> >> >>>>>> slave because there is another node with the master role? >>> >> >>>>>> >>> >> >>>>>> Thank you! >>> >> >>>>>> >>> >> >>>>>> >>> >> >>>>> >>> >> >>>>> >>> >> >>>>> -- >>> >> >>>>> ----------------------------------------------------- >>> >> >>>>> Noble Paul | Principal Engineer| AOL | http://aol.com >>> >> >>>>> >>> >> >>>>> >>> >> >>>> >>> >> >> >>> >> > >>> >> >>> >> >>> >> >>> >> -- >>> >> ----------------------------------------------------- >>> >> Noble Paul | Principal Engineer| AOL | http://aol.com >>> > >>> > >>> >>> >>> >>> -- >>> ----------------------------------------------------- >>> Noble Paul | Principal Engineer| AOL | http://aol.com >> > > -- ----------------------------------------------------- Noble Paul | Principal Engineer| AOL | http://aol.com
