are u using a trunk version? did u try the new replication feature http://wiki.apache.org/solr/SolrReplication it supports solrconfig replication automatically
On Fri, Feb 13, 2009 at 6:56 AM, sunnyfr <[email protected]> wrote: > > Hi, > > What do you mean by clean the data directory on the slave servers? > Do you have remove everything from it and then start a new rsyncd ??? > and turn on snappuller cronjob ?? > thanks a lot, > > > Noble Paul നോബിള് नोब्ळ् wrote: >> >> The current Solr replication just copy the data directory . So if the >> schema changes and I do a re-index it will blissfully copy the index >> and the slaves will fail because of incompatible schema. >> >> So the steps we follow are >> * Stop rsync on slaves >> * Update the master with new schema >> * re-index data >> * forEach slave >> ** Kill the slave >> ** clean the data directory >> ** install the new schema >> ** restart >> ** do a manual snappull >> >> The amount of work the admin needs to do is quite significant >> (depending on the no:of slaves). These are manual steps and very error >> prone >> >> The solution : >> Make the replication mechanism handle the schema replication also. So >> all I need to do is to just change the master and the slaves synch >> automatically >> >> What is a good way to implement this? >> >> We have an idea along the following lines >> >> This should involve changes to the snapshooter and snappuller scripts >> and the snapinstaller components >> >> Everytime the snapshooter takes a snapshot it must keep the timestamps >> of schema.xml and elevate.xml (all the files which might affect the >> runtime behavior in slaves) >> For subsequent snapshots if the timestamps of any of them is changed >> it must copy the all of them also for replication. >> >> The snappuller copies the new directory as usual >> >> The snapinstaller checks if these config files are present , >> >> if yes, >> * It can create a temporary core >> * install the changed index and configuration >> * load it completely and swap it out with the original core >> >> --Noble >> >> > > -- > View this message in context: > http://www.nabble.com/replication-should-include-the-schema-also-tp16851477p21995813.html > Sent from the Solr - Dev mailing list archive at Nabble.com. > > -- --Noble Paul
