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https://issues.apache.org/jira/browse/LUCENE-3736?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Uwe Schindler updated LUCENE-3736:
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Description:
The plan is:
- Move all subreaders to ctor (builder-like API. First build reader-set, then
call build)
- Rename ParallelReader to ParallelAtomicReader
- Add a ParallelCompositeReader with same builder API, but taking any
CompositeReader-set and checks them that they are aligned (docStarts
identical). The subreaders are ParallelAtomicReaders.
was:
ParallelReader is now atomic. We should add a sugar wrapper method to allow
synchronized composite readers (with same segment sizes) to be aligned with
MultiReaders or wrapped by Slow:
- one ParallelReader with Slow wrapped parallel readers, they only need same
maxDoc() (and deletions)
- a MultiReader containing all sub-ParallelReaders. This needs CompositeReaders
with same docStarts[]
Summary: ParallelReader is now atomic, rename to ParallelAtomicReader
and also add a ParallelCompositeReader (that requires LogDocMergePolicy to have
identical subreader structure) (was: ParallelReader is now atomic, add
convenience methods to wrap CompositeReaders in either "slow atomic" or "fast
composite" way)
> ParallelReader is now atomic, rename to ParallelAtomicReader and also add a
> ParallelCompositeReader (that requires LogDocMergePolicy to have identical
> subreader structure)
> ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: LUCENE-3736
> URL: https://issues.apache.org/jira/browse/LUCENE-3736
> Project: Lucene - Java
> Issue Type: Sub-task
> Components: core/index
> Reporter: Uwe Schindler
> Assignee: Uwe Schindler
> Fix For: 4.0
>
> Attachments: LUCENE-3736.patch, LUCENE-3736.patch, LUCENE-3736.patch
>
>
> The plan is:
> - Move all subreaders to ctor (builder-like API. First build reader-set, then
> call build)
> - Rename ParallelReader to ParallelAtomicReader
> - Add a ParallelCompositeReader with same builder API, but taking any
> CompositeReader-set and checks them that they are aligned (docStarts
> identical). The subreaders are ParallelAtomicReaders.
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