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From "Karthick Sankarachary (JIRA)" <>
Subject [jira] Updated: (LUCENE-2434) A Mirroring Split Policy For Load-Balancing Search Requests
Date Sun, 02 May 2010 19:49:56 GMT


Karthick Sankarachary updated LUCENE-2434:

    Attachment: LUCENE-2434.patch

> A Mirroring Split Policy For Load-Balancing Search Requests
> -----------------------------------------------------------
>                 Key: LUCENE-2434
>                 URL:
>             Project: Lucene - Java
>          Issue Type: New Feature
>            Reporter: Karthick Sankarachary
>         Attachments: LUCENE-2434.patch
> (Please note that the feature described in LUCENE-2425 is required reading for this issue.)

> The mirroring split policy builds on the remoting split policy, treating each sub-index
as a mirror of the super-index (upon which the split writer is built). The motivation for
this policy is to allow a given index to be available on multiple nodes (that define a cluster),
which helps to load-balance search requests across the nodes in that cluster, not to mention
implement fail-over for index searchers.
> Unlike other mirroring solutions for Lucene, this approach gives users the ability to
(a) pick and choose the types of directories underlying the mirror, and (b) add/remove mirrors
on the fly. However, note that the latter capability has not yet been implemented, although
it will be soon.

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