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https://issues.apache.org/jira/browse/SOLR-5316?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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olivier soyez updated SOLR-5316:
--------------------------------
Description:
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)
To improve performance, we use this Solr patched version with the persistence
disabled.
In this way, Solr is working with a solr.xml file without any core entries,
because it's useless in our use case (with the new Auto option for the 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.
was:
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.
> 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
> Labels: patch
> 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)
> To improve performance, we use this Solr patched version with the persistence
> disabled.
> In this way, Solr is working with a solr.xml file without any core entries,
> because it's useless in our use case (with the new Auto option for the 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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