olivier soyez created SOLR-5316:
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Summary: Solr 4.2.1 LotsOfCores new options
Key: SOLR-5316
URL: https://issues.apache.org/jira/browse/SOLR-5316
Project: Solr
Issue Type: Improvement
Components: multicore
Affects Versions: 4.2.1
Reporter: olivier soyez
Priority: Minor
Fix For: 4.2.1
Attachments: solr-4.2.1.patchLOTSOFCORES
This patch is for the lotsofcores use case, including some modification :
- by default, all cores have loadOnStartup="false" and transient="true"
attributes
- the create admin command can register a lazy core (to take into account the
transientCacheSize option)
- add transient cores persistency
- handle unload admin command for never launched transient cores (non active
cores)
The new Cores options :
- "numBuckets" to create a subdirectory based on a hash on the corename
% numBuckets in the core Datadir, because all cores cannot live in the
same directory
- "Auto" with 3 differents values :
1) false : default behaviour
2) createLoad : create, if not exist, and load the core on the fly on
the first incoming request (update, select).
3) onlyLoad : load the core on the fly on the first incoming request
(update, select), if exist on disk
The Auto option uses an additional cores option named baseDataDir to
automatically generate the dataDir of each core and uses the "numBucket" option
if exists.
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