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https://issues.apache.org/jira/browse/NUTCH-1480?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16328935#comment-16328935
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ASF GitHub Bot commented on NUTCH-1480:
---------------------------------------
r0ann3l commented on issue #218: fix for NUTCH-1480 contributed by r0ann3l
URL: https://github.com/apache/nutch/pull/218#issuecomment-358355731
Hi @sebastian-nagel:
In this case I propose to use an internal CACHE object, as the
PluginRepository does, to store the IndexWriters object. The code could be
something like this:
```
private static final WeakHashMap<String, IndexWriters> CACHE = new
WeakHashMap<>();
public static synchronized IndexWriters get(Configuration conf) {
String uuid = NutchConfiguration.getUUID(conf);
if (uuid == null) {
uuid = "nonNutchConf@" + conf.hashCode();
}
return CACHE.computeIfAbsent(uuid, k -> new IndexWriters(conf));
}
```
What do you think?
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> SolrIndexer to write to multiple servers.
> -----------------------------------------
>
> Key: NUTCH-1480
> URL: https://issues.apache.org/jira/browse/NUTCH-1480
> Project: Nutch
> Issue Type: Improvement
> Components: indexer
> Reporter: Markus Jelsma
> Assignee: Markus Jelsma
> Priority: Minor
> Attachments: NUTCH-1480-1.6.1.patch,
> adding-support-for-sharding-indexer-for-solr.patch
>
>
> SolrUtils should return an array of SolrServers and read the SolrUrl as a
> comma delimited list of URL's using Configuration.getString(). SolrWriter
> should be able to handle this list of SolrServers.
> This is useful if you want to send documents to multiple servers if no
> replication is available or if you want to send documents to multiple NOCs.
> edit:
> This does not replace NUTCH-1377 but complements it. With NUTCH-1377 this
> issue allows you to index to multiple SolrCloud clusters at the same time.
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