Hi, I was wondering if it was possible to let all replicas of a shard share the physical lucene files. In that way you would only need one set of files on a shared storage, and then setup as many replicas as needed without copying files around. This would make it very fast to optimize and rebalance hardware resources as more shards are added.
What I visioning was a setup with one master doing all the indexing. Then all the shard replicas are installed as a string of slaves setup as both master and slave, such that the first replica replicates directly from the master. The next replica replicates from the first replica and so on. In this way only the first replica need to write indexfiles. When the next replica is triggered to replicate it will find that all files are up to date, and then you issue a "commit" to reload the index in memory, thereby being up-to-date. The master's commit triggers a cascade of replication, which are all up-to-date immediately, and then it is a matter of few seconds for the slaves to be in sync with the master. Taking this though further, the first replica could actually access the master's index files directly, and then be up-to-date without copying any files. Would this setup be possible? Med venlig hilsen / Best Regards Christian von Wendt-Jensen IT Team Lead, Customer Solutions Infopaq International A/S Kgs. Nytorv 22 DK-1050 København K Phone +45 36 99 00 00 Mobile +45 31 17 10 07 Email christian.sonne.jen...@infopaq.com<mailto:christian.sonne.jen...@infopaq.com> Web www.infopaq.com<http://www.infopaq.com/>
