Hi Kay, do you wish to change data dir or just indexdir. It is possible to switch indexDir w/ minimal overhead.
dataDir can contain a index.properties file which can contain a property called 'index' it can point to your new index . but you will have to find a way to populate this index ReplicationHandler uses this feature. This may not be a recommended behavior and i'm not sure how you can use this look at SnapPuller#modifyIndexProps() --Noble On Fri, Jan 9, 2009 at 2:12 AM, Kay Kay <kaykay.uni...@gmail.com> wrote: > Chris Hostetter wrote: >> >> : We have an architecture where we want to flip the solr data.dir (massive >> : dataset) while running and serving search requests with minimal >> downtime. >> ... >> >> : 1) What is the fastest / best possible way to get step 1 done ,through a >> : pluggable architecture. >> : : Currently - I have written a request handler as follows, that takes >> care of >> : creating the core. What is the best way to change dataDir (got as input >> from >> : SolrQueryRequest) before creating SolrCore-s. >> >> you shouldn't need any custom plugin code to achieve this ... what you >> describe wounds like exactly what the SWAP command on the CoreAdmin handler >> was designed for -- CREATE your new core (using the new data dir) warm it >> however you want (either via the solrconfig.xml or by explicitly hitting it >> with queries) and once it's warmed up send the SWAP command to replace the >> existing core with the name you want to use. >> >> : 2) When a close() happens on an existing SolrCore - what happens when >> there is >> : a long running IndexReader query on that SolrCore . Is that terminated >> : abruptly / would the close wait until the IndexReaders completes the >> Query. >> >> any existing uses of the Core will continue to finish (i'm not sure of hte >> timeline of your question, ut i'm guessing this was before the recent jira >> issue about the close() method and ref counts where this was better >> explained, correct?) >> >> >> >> -Hoss >> >> >> > > Thanks Hoss for the explanation regarding changing the data directory. Yes - > this was before the jira issue discussions for the close() method. > -- --Noble Paul
