[ https://issues.apache.org/jira/browse/SOLR-3182?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Russell Black closed SOLR-3182. ------------------------------- Resolution: Won't Fix With Solr Cloud, this feature is not needed. > If there is only one core, let it be the default without specifying a default > in solr.xml > ----------------------------------------------------------------------------------------- > > Key: SOLR-3182 > URL: https://issues.apache.org/jira/browse/SOLR-3182 > Project: Solr > Issue Type: Improvement > Components: multicore > Affects Versions: 3.6, 4.0-ALPHA > Reporter: Russell Black > Priority: Minor > Labels: patch > Attachments: SOLR-3182-default-core.patch > > Original Estimate: 10m > Remaining Estimate: 10m > > Our particular need for this is as follows. We operate in a sharded > environment with one core per server. Each shard also acts as a collator. > We want to use a hardware load balancer to choose which shard will do the > collation for each query. But in order to do that, each server's single core > would have to carry the same name so that it could be accessed by the same > url across servers. However we name the cores by their shard number > (query0,query1,...) because it parallels with the way we name our > indexing/master cores (index0, index1,...). This naming convention also > gives us the flexibility of moving to a multicore environment in the future > without having to rename the cores, although admittedly that would complicate > load balancing. > In a system with a large number of shards and the anticipation of adding more > going forward, setting a defaultCoreName attribute in each solr.xml file > becomes inconvenient, especially since there is no Solr admin API for setting > defaultCoreName. It would have to be done by hand or with some automated > tool we would write in house. Even if there were an API, logically it seems > unnecessary to have to declare the only core to be the default. > Fortunately this behavior can be implemented with the following simple patch: > {code} > Index: solr/core/src/java/org/apache/solr/core/CoreContainer.java > =================================================================== > --- solr/core/src/java/org/apache/solr/core/CoreContainer.java > (revision 1295229) > +++ solr/core/src/java/org/apache/solr/core/CoreContainer.java > (working copy) > @@ -870,6 +870,10 @@ > } > > private String checkDefault(String name) { > + // if there is only one core, let it be the default without specifying a > default in solr.xml > + if (defaultCoreName.trim().length() == 0 && name.trim().length() == 0 && > cores.size() == 1) { > + return cores.values().iterator().next().getName(); > + } > return name.length() == 0 || defaultCoreName.equals(name) || > name.trim().length() == 0 ? "" : name; > } > {code} -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org