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https://issues.apache.org/jira/browse/SOLR-2193?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mark Miller updated SOLR-2193:
------------------------------
Description:
The update handler needs an overhaul.
A few goals I think we might want to look at:
1. Cleanup - drop DirectUpdateHandler(2) line - move to something like
UpdateHandler, DefaultUpdateHandler
2. Expose the SolrIndexWriter in the api or add the proper abstractions to get
done what we now do with special casing:
if (directupdatehandler2)
success
else
failish
3. Stop closing the IndexWriter and start using commit (still lazy IW init
though).
4. Drop iwAccess, iwCommit locks and sync mostly at the Lucene level.
5. Keep NRT support in mind.
6. Keep microsharding in mind (maintain logical index as multiple physical
indexes)
7. Address the current issues we face because multiple original/'reloaded'
cores can have a different IndexWriter on the same index.
was:
The update handler needs an overhaul.
A few goals I think we might want to look at:
1. Cleanup - drop DirectUpdateHandler(2) line - move to something like
UpdateHandler, DefaultUpdateHandler
2. Expose the SolrIndexWriter in the api or add the proper abstractions to get
done what we now do with special casing:
if (directupdatehandler2)
success
else
failish
3. Stop closing the IndexWriter and start using commit (still lazy IW init
though).
4. Drop iwAccess, iwCommit locks and sync mostly at the Lucene level.
5. Keep NRT support in mind.
6. Keep microsharding in mind (maintain logical index as multiple physical
indexes)
> Re-architect Update Handler
> ---------------------------
>
> Key: SOLR-2193
> URL: https://issues.apache.org/jira/browse/SOLR-2193
> Project: Solr
> Issue Type: Improvement
> Reporter: Mark Miller
> Assignee: Mark Miller
> Fix For: 4.0
>
> Attachments: SOLR-2193.patch, SOLR-2193.patch, SOLR-2193.patch
>
>
> The update handler needs an overhaul.
> A few goals I think we might want to look at:
> 1. Cleanup - drop DirectUpdateHandler(2) line - move to something like
> UpdateHandler, DefaultUpdateHandler
> 2. Expose the SolrIndexWriter in the api or add the proper abstractions to
> get done what we now do with special casing:
> if (directupdatehandler2)
> success
> else
> failish
> 3. Stop closing the IndexWriter and start using commit (still lazy IW init
> though).
> 4. Drop iwAccess, iwCommit locks and sync mostly at the Lucene level.
> 5. Keep NRT support in mind.
> 6. Keep microsharding in mind (maintain logical index as multiple physical
> indexes)
> 7. Address the current issues we face because multiple original/'reloaded'
> cores can have a different IndexWriter on the same index.
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