Update Changelog for 2.0 release.
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Changelog
49
Changelog
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== 2.0 Major Release ==
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Add test cases for Global Deduplication.
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Update documentation and code comments.
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Remove tempfile pathname after creation to ensure clean removal after process exit.
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Simplify segment lookup loop.
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Fix assertion.
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Change Segmented Dedupe flow to improve parallelism.
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Periodically sync writes to segcache file.
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Use simple insertion sort for small numbers of elements.
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Capability to output data to stdout when compressing.
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Always use segmented similarity bases dedupe when using -G option in pipe mode.
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Standardize on average 8MB segment size for segmented dedupe.
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Fix hashtable sizing.
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Some miscellaneous cleanups.
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Update README with details of new features.
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Optimize index lookup for 8-byte keys.
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More cleanups.
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More tweaks to slightly improve segment dedupe efficiency.
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Some minor cleanps.
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Improve segment similarity detection and drastically reduce index size.
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Improve duplicate segment match detection.
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Tweak percentage intervals computation to improve segmented dedupe ratio.
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Avoid repeat processing of already processed segments.
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Clean up temp cache dir handling.
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Allow temp dir setting via specific env variable to point to fast devices like ramdisk,ssd.
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Several bugfixes.
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Avoid matching with self during hash lookup.
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Several fixes and optimizations.
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Many optimizations and changes to Segmented Global Dedupe.
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Use chunk hash based similarity matching rather than content based.
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Use sorting to order hash buffer rather than min-heap for better accuracy.
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Use fast CRC64 for similarity hash for speed and lower memory requirements.
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Many optimizations to segmented global dedupe.
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Use chunk hash based cumulative similarity matching instead of chunk content.
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Update usage text and add minor tweaks.
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Properly cleanup global dedupe state.
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Complete implementation for Segmented Global Deduplication.
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Work in progress changes for Segmented Global Deduplication.
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Work in progress changes for Segmented Global Deduplication.
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Work in progress changes for scalable segmented global deduplication.
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Allow user-specified environment setting to control in-memory index size.
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Implement global dedupe in pipe mode.
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Update hash index calculations to use upto 75% memavail when file size is not known.
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Use little-endian nonce format for Salsa20.
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Add global index cleanup function.
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Fix location of sem_wait().
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More comments.
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Add check to disable Delta Compression with Global deduplication for now.
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Implement Global Deduplication.
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== 1.4.0 Update Release ==
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Update couple more test parameters with new crypto options.
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Update README and test cases with new crypto options.
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