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https://issues.apache.org/jira/browse/CASSANDRA-2398?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Stu Hood updated CASSANDRA-2398:
--------------------------------
Description:
Cassandra has a lot of locations that are ripe for type specific compression. A
short list:
Indexes
* Keys compressed as BytesType, which could default to LZO/LZMA
* Offsets (delta and varint encoding)
* Column names added by 2319
Data
* Keys, columns, timestamps: see
http://wiki.apache.org/cassandra/FileFormatDesignDoc
A basic interface for type specific compression could be as simple as:
{code:java}
public void compress(int version, Iterator<ByteBuffer> from, int count,
DataOutput to) throws IOException
public void decompress(int version, DataInput from, List<ByteBuffer> to) throws
IOException
public void skip(int version, DataInput from) throws IOException
{code}
was:
Cassandra has a lot of locations that are ripe for type specific compression. A
short list:
Indexes
* Keys compressed as BytesType, which could default to LZO/LZMA
* Offsets (delta and varint encoding)
* Column names added by 2319
Data
* Keys, columns, timestamps: see
http://wiki.apache.org/cassandra/FileFormatDesignDoc
A basic interface for type specific compression could be as simple as:
{code:java}
public void compress(int version, Iterator<ByteBuffer> from, int count,
DataOutput to) throws IOException
public void decompress(int version, DataInput from, List<ByteBuffer> to) throws
IOException
{code}
> Type specific compression
> -------------------------
>
> Key: CASSANDRA-2398
> URL: https://issues.apache.org/jira/browse/CASSANDRA-2398
> Project: Cassandra
> Issue Type: New Feature
> Components: Core
> Affects Versions: 0.8
> Reporter: Stu Hood
> Labels: compression
> Attachments: example.diff
>
>
> Cassandra has a lot of locations that are ripe for type specific compression.
> A short list:
> Indexes
> * Keys compressed as BytesType, which could default to LZO/LZMA
> * Offsets (delta and varint encoding)
> * Column names added by 2319
> Data
> * Keys, columns, timestamps: see
> http://wiki.apache.org/cassandra/FileFormatDesignDoc
> A basic interface for type specific compression could be as simple as:
> {code:java}
> public void compress(int version, Iterator<ByteBuffer> from, int count,
> DataOutput to) throws IOException
> public void decompress(int version, DataInput from, List<ByteBuffer> to)
> throws IOException
> public void skip(int version, DataInput from) throws IOException
> {code}
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