forked from andy/lizardfs
57 lines
2.1 KiB
Plaintext
57 lines
2.1 KiB
Plaintext
Dear Users,
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3.13.0-rc1 (release candidate) is officially out!
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Featuring:
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- uRaft HA
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- fixes to EC handling
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- nfs-ganesha plugin changed to use only C code
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- reduced number of secondary groups retrievals
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- add fuse3 client
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- many fixes
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Detailed info:
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* uRaft HA *
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uRaft is HA solution designed for use with LizardFS. It allows for seamless switching
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of master server in case of hardware failure. More information about uRaft is available
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in LizardfFS Handbook (https://docs.lizardfs.com/index.html)
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* fixes to EC handling *
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For chunk types with number of parity grater than 4 there could occur situation when
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it wasn't possible to recover missing data. This was low probability event but nonetheless
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it could happen. To solve this problem we have to recompute parity parts for those types of chunks.
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Unfortunately until all parity parts are recomputed affected chunks are in endangered state.
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* nfs-ganesha plugin changed to use only C code *
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In preparation for moving LizardFS nfs-ganesha plugin to official nfs-ganesha repository,
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we had to remove all occurrences of C++ code and replace it with plain C.
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* reduced number of secondary groups retrievals *
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In LizardFS we introduced handling of secondary groups. Unfortunately the function to retrieve
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secondary groups in FUSE library turned out to be using a lot of CPU resources. Thanks to removing
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unnecessary calls to this function, mount performance increased significantly.
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* add fuse3 client *
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LizardFS now include mount3 client which uses FUSE3 library. Thanks to new features in FUSE3,
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now mount performs much better in many scenarios. Here are the most important changes visible
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to LizardFS users:
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- big_writes option is now enabled by default (also it isn't recognized as a parameter anymore).
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- Added writeback_cache option. With kernel 3.14 and newer this
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enables write-back caching which can significantly improve performance.
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- increased read/write performance (specially for small operations)
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Because most of the Linux distributions don't include FUSE3 library, we have build FUSE3 packages
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and made them available on LizardFS page (https://lizardfs.com/)
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Cheers,
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Artur Kornacki
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LizardFS Team
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