Uses of Class
org.apache.hadoop.hbase.io.encoding.BufferedDataBlockEncoder
Packages that use BufferedDataBlockEncoder
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Uses of BufferedDataBlockEncoder in org.apache.hadoop.hbase.io.encoding
Subclasses of BufferedDataBlockEncoder in org.apache.hadoop.hbase.io.encodingModifier and TypeClassDescriptionclassJust copy data, do not do any kind of compression.classCompress using: - store size of common prefix - save column family once, it is same within HFile - use integer compression for key, value and prefix (7-bit encoding) - use bits to avoid duplication key length, value length and type if it same as previous - store in 3 bits length of timestamp field - allow diff in timestamp instead of actual value Format: - 1 byte: flag - 1-5 bytes: key length (only if FLAG_SAME_KEY_LENGTH is not set in flag) - 1-5 bytes: value length (only if FLAG_SAME_VALUE_LENGTH is not set in flag) - 1-5 bytes: prefix length - ...classEncoder similar toDiffKeyDeltaEncoderbut supposedly faster.classCompress key by storing size of common prefix with previous KeyValue and storing raw size of rest.