Daily Tag 01/28/2011

• Sharding Introduction - MongoDB

  tags: mongodb sharding

  • Sharding occurs on a per-collection basis, not on the database as a whole. This makes sense since, as our application grows, certain collections will grow much larger than others. For instance, if we were building a service like Twitter, our collection of tweets would likely be several orders of magnitude larger than the next biggest collection. The size and throughput demands of such a collection would be prime for sharding, whereas smaller collections would still live on a single server. In the context on MongoDB's sharded architecture, non-sharded collections will reside on just one of the sharded nodes.

• OTN Discussion Forums : web.xml's jsp-config/taglib element not ...

  tags: jsp taglib config web xml

  • 1. Reference from jsp :... Webcontent/mytest.jsp
    
    <%@ taglib uri="/mytags" prefix="myt" %>
    
    2. where this tag is located:
    
    WEB-INF/taglibs/mytags.tld
    
    3. content of web.xml
    ....
    
    <jsp-config>
    ...some content deleted for brevity....
    <taglib>
    <taglib-uri>/mytags</taglib-uri>
    <taglib-location>/WEB-INF/taglibs/mytags.tld</taglib-location>
    </taglib>
    <jsp-config>

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