Details
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Improvement
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Status: Closed
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Major
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Resolution: Fixed
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4.0, 4.1
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None
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New, Patch Available
Description
Currently, the buffered index input class allows sub-classes and users thereof to specify a size for the input buffer, which by default is 1024 bytes. In practice, this option is leveraged by the simple file and compound segment index input sub-classes.
By the same token, it would be nice if the buffered index output class could open up it's buffer size for users to configure. In particular, this would allow sub-classes thereof to align the output buffer size, which by default is 16348 bytes, to that of the underlying directory's data unit. For example, a network-based directory might want to buffer data in multiples of it's maximum transmission unit. To use an existing use-case, the file system-based directory could potentially choose to align it's output buffer size to the operating system's file block size.
The proposed change to the buffered index output class involves defining a one-arg constructor that takes a user-defined buffer size, and a default constructor that uses the currently defined buffer size.
Attachments
Attachments
Issue Links
- is duplicated by
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LUCENE-4549 Allow variable buffer size on BufferedIndexOutput
- Closed
- is required by
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LUCENE-2456 A Column-Oriented Cassandra-Based Lucene Directory
- Resolved