ObjectiveFS Release Notes
7.2
Release date: February 28, 2024
New Features
- New custom snapshot schedule for user-defined automatic snapshot schedules (learn more)
- New
writedelay mount option to allow the kernel to delay writes to the filesystem
- New
filehole mount option for user-defined maximum file hole size
Performance and Improvements
7.1
Release date: September 21, 2023
- Native support for more architectures. Now supporting:
- Linux ARM64
- Linux x86-64-v1
- Linux x86-64-v2
- Linux x86-64-v3 (AVX2)
- Linux x86-64-v4 (AVX-512)
- MacOS ARM64
- MacOS x86
- Linux x86-64 smart binary automatically selects the fastest binary for the platform
- Linux x86-64 includes support for AVX-512, AVX2, AVX, SSE4_2, SSE3, etc
- Linux ARM64 binary for ARMv8.0 and newer
- Linux ARM64 supports NEON instruction set
- MacOS universal binary for x86-64 and ARM64
- Client-side encryption now uses the fastest vector instructions available on the platform
- SHA-1 ARM64 and x86-64 native instructions support (signature v2 object stores)
- SHA-256 ARM64 and x86-64 native instructions support (signature v4 object stores)
- Improved cpu usage during high load conditions for large file operations on large memory cache machines
- Vector instruction performance gain, e.g. 3.9X faster data integrity checks with AVX-512
- Fix for autofs automount issue
- Compatibility: All ObjectiveFS filesystems are compatible with this release
7.0
Release date: October 5, 2022
A. New Features
- Built-in TLS/SSL support. Supports AES native instructions and other processor-specific optimizations (learn more)
- New connection manager for more efficient object store connection handling
- New heuristics for object store connection reuse and slow connection handling
- New
kcache+ performance feature for storing directories and symlinks in kernel cache
- New
mkdir mount option to create directory on mount if directory doesn’t exists
- Added ability to select Azure API instead of S3 API by setting the SIGNATURE variable
- New ENDPOINT variable to directly specify object store endpoint
- New PATHSTYLE variable to select path style addressing for object stores that do not use domain style addressing
- New OBJECTSTORE variable to select the default object store
config command now generates object store specific configurations- macOS: Faster detection of network changes
- macOS: Always create mount directory when mounting in
/Volumes
- Oracle Cloud: New NAMESPACE variable for Oracle Cloud namespace
- IBM Public Cloud: Added specific handling for cloud region listing and mounting
- New REGION, ACCESS_KEY, SECRET_KEY variables are synonyms for AWS_DEFAULT_REGION, AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY
B. Performance
- Optimized syscall selection to improve performance of sequential requests with up to 2X speedup
- Improved small file performance with up to 40% speedup
- Implemented fine-grain locking for in-memory index structure for lower latency and less memory usage
- Lowered latency of
mboost for large filesystems
- Linux: Optimized number of syscalls for connection handling
C. Improvements
- SIGNATURE variable now supports s3v2 and s3v4, in addition to v2, v4 and azure
- Descriptive names for more object stores and regions in
list command output
create command shows available regions for the selected object storeconfig command shows available regions for the selected object store- Tuned unmount behavior for disk cache threads
- Recognize Outposts and Glacier Instant Retrieval AWS storage tiers
- Recognize more EC2 nitro instances for
autofreebw heuristic
- Log
errno names when applicable
- Updated Azure blob storage protocol version to the latest version: 2021-06-08
- Improved log messages and error messages
D. Fixes
6.9.1
Release date: November 2, 2021
- Updated ioctl for Linux file attributes to work with newer FUSE versions
- MacOS: Added workaround to address macFUSE breaking backwards compatibility
6.9
Release date: October 2, 2021
A. New Features
- Azure blob storage support integrated (learn more)
- Oracle Cloud support (learn more)
- Disk cache size can be specified as a percentage
- Removed requirement for GetBucketLocation permission
- MacOS: macOS extended ACL support
- MacOS: Added compatibility with macFUSE 4.0+
- MacOS: Added capability to work on Apple M1 machines
B. Improvements
- Cleaner efficiency improvements to adapt to more filesystem types and workloads
- Improvements to dynamic metadata object sizing for large filesystems
- Improved the memory usage and efficiency for cleaner+
- Improved multi-node locking performance
- Improved cache performance when multiple nodes are optimizing the storage layout
- Adjusted request timeout to better support object stores with slower response times
- Improved multi-node compaction efficiency for very large filesystems
- Tuned fysnc coalescing for applications with lots of parallel fsyncs
- MacOS: Improved support for very large macOS resource forks
- SignatureV4 region defaults to us-east-1 if default region is not set
- Added verbose flag to
list command
- Update list command to only output snapshots when
@ is specified
- New logging format and more detailed logging for object store request exceptions
- Improved log messages for DNS lookup and connection startup
- Added new diagnostics messages for object store connection issues
C. Fixes
6.8
Release date: March 5, 2021
A. New Features
- New storage cleaner architecture with more efficient compaction and improved cleaning heuristic (learn more)
- New Size Tiered and Time Based dynamic compaction heuristic
- New multithreaded storage cleaner and compactor
- New object store tier aware compaction algorithm
- New
freebw, autofreebw mount options
- New
mtplus mount option (learn more)
- New compaction progress monitoring and logging (learn more)
- A free cleaner thread for all users and additional cleaner threads with multithreading
B. Performance
- Improved worker threads scaling algorithm
- Improved storage cleaner heuristics when used with snapshots
- Increased concurrency for compaction operations at higher compaction levels
- Improved disk cache performance for larger disk caches
- Performance optimizations for Petabyte-size filesystems
- Optimized object sizes for improved object store performance
- Increased ocache size for very large filesystems
- Improved storage layout heuristics
- Faster performance for creation of lots of small files
- Faster response time in the event of object store errors
- Increased I/O threads for regular multithreading from 8 to 16
C. General Improvements
- Improved EC2 detection for autofreebw and compaction level setting
- Used newer AWS metadata server API version
- Tuned concurrency to match updated AWS recommendations
- Tuned compaction to utilize file system idle periods
- Support filesystem creation in an existing bucket with restrictive permission
- Adjusted disk cache queue response time
- Tuned compaction on write for metadata and data
- Tuned quick sync heuristic
- Unified endpoint support for all AWS regions
- Adjusted compaction rate limits
- Updated various logging messages and exit codes
- Increased retry handling during initial startup
- MacOS only: Increased backwards compatibility to macOS 10.8
D. Fixes
6.7.2
Release date: June 16, 2020
- Fix compability when using http proxy and sigv2 with non-AWS object stores
6.7.1
Release date: April 25, 2020
- Linux only: Make EC2 Instance Metadata Service v2 support work better with Docker
6.7
Release date: April 9, 2020
- Dynamic scaling of threads to improve efficiency and resource usage
- Reduced memory usage when running with multithreading
- Speed up performance when running with disk cache
- Support for EC2 Instance Metadata Service v2 (IMDSv2)
- Improved disk cache performance resiliency when dealing with slow or faulty local disks
- Improved performance for small file operations
- Improved cleaner+ efficiency for active directories and files with many hard links
- Improved write queue management to better handle contention during slow responses from the object store
- Reduced max CPU usage for some workloads with improved heuristics
- Reduced the number of GET requests when running with multiple nodes
- Tuned S3 connection settings
- Tuned destroy filesystem operation
- Added beta support for workflows that communicate new filenames through a separate channel
- Report final statistics to log file upon shutdown
- Error message improvements
- Compatibility: All ObjectiveFS filesystems are compatible with this release
6.6
Release date: January 6, 2020
- New memory caching algorithm for faster cache operations and better memory usage
- New heuristic for memory cache to better adapt to workload changes over time
- Improved parallelism for backend operations to speed up performance
- Reduced memory cache usage for active directories
- Added several optimizations to reduce OS memory usage
- Reduced number of FUSE interface operations in certain cases
- Added fix for
rdirplus memory usage
- Added fix to address a case that could cause high cpu usage
- Amazon S3 only: use ISO 8601 date format for x-amz-date header for http proxy connections
- MacOS only: added support for inode creation time queries
- Various minor improvements for write workload performance and checkpoint snapshots
- Compatibility: All ObjectiveFS filesystems are compatible with this release
6.5
Release date: November 28, 2019
A. New Features
- Extended ACL support for Linux with new
acl mount option learn more
- Support for immutable and append-only file attributes for Linux
- File capabilities support learn more
- File attributes support for Linux learn more
- File flags support for macOS learn more
- Improved xattr support including more xattr namespace compatibility
B. Improvements
- Faster cross-node locking with new directory locking algorithm
- Improved synchronization speed between nodes
- Improved speed and efficiency of cleaner+
- Improved 99th percentile latency for filesystem operations
- Improved write queue management to object store
- Match atime, ctime and mtime updates closer with ext4
C. General
- Additional error message logging for http retries
- Support for macOS Catalina
- Support for newer FUSE versions up to 7.31
- Moved oldest supported FUSE version to 7.12
- Compatibility: All ObjectiveFS filesystems are compatible with this release
6.4
Release date: August 18, 2019
- Important fix for cleaner+ in the presence of clock skew between nodes (only for
clean=2, not enabled by default)
- Fixed an issue which can cause a directory to have slow file creation
- Improved
ocache handling of updates from slow writer nodes
- Improved
rdirplus inode memory usage
- EC2 only: Nitro instance type and region are now reported in syslog
- Compatibility: All ObjectiveFS filesystems are compatible with this release
6.3
Release date: June 24, 2019
- Updated memory allocator to be more robust in low memory situations
- New
nomem mount option to select mount behavior when out of memory
- New
retry mount option for retrying connection to object store upon start up
- Cleaner+ now skips ocache on initial mount
- MacOS only: updated FUSE for macOS to version 3.9.2
- Minor error message updates
- Compatibility: All ObjectiveFS filesystems are compatible with this release
6.2
Release date: April 23, 2019
- Support AWS S3 transfer acceleration through http proxy
- Fixed cleaner+ low memory issue (only for
clean=2, not enabled by default)
- Added
/opt/bin to search path for fusermount
- Compatibility: All ObjectiveFS filesystems are compatible with this release
6.1
Release date: March 23, 2019
-
Amazon S3 only: Use Signature Version 4 (SigV4) in all regions to support the upcoming Amazon S3 deprecation of Signature Version 2 (SigV2) on June 24, 2019 (see AWS announcement). S3 regions that need this upgraded version are:
- us-east-1 (N. Virginia)
- us-west-1 (N. California)
- us-west-2 (Oregon)
- ap-southeast-1 (Singapore)
- ap-southeast-2 (Sydney)
- ap-northeast-1 (Tokyo)
- eu-west-1 (Ireland)
- sa-east-1 (Sao Paulo)
-
Added fix to better handle quick unmounts during initial filesystem startup
- Compatibility: All ObjectiveFS filesystems are compatible with this release
5.5.3
Release date: March 23, 2019
6.0
Release date: January 26, 2019
A. New Features
- New kernel cache
kcache to improve re-read performance (learn more)
- New cleaner+ storage cleaner
- New
rdirplus that reduces stat call overhead for many common workloads (learn more)
- New
fuse_conn to set the max background FUSE connections (learn more)
B. Performance
- Faster directory listing which can speed up metadata-heavy operations by up to 50%
- Read-ahead performance improvements, including bigger step size for hpc mode
- New early-issue for certain read requests for faster read performance
- Compaction heuristics improvements with focus on metadata and boot time performance
- Object size optimizations for filesystems in the TB to PB+ ranges
- Lower latency for parallel directory operations
- Lower memory usage for active directories and extended attributes
- Lower memory usage for OS portion of cache for some workloads
- Faster repeated metadata lookup to lower cpu usage for active workloads
C. General Improvements
- Support for newer FUSE versions up to 7.26
- Additional
export flag tuning for NFS and Samba exports
- Read and write operations cpu usage efficiency improvements
- Increase compaction rate for max compaction level (
compact=5)
- Support newer EC2 instances with Nitro hypervisor for compaction level setting
- Refresh indexes more often for more up-to-date filesystem size
- Log availability zone and instance type on the starting line
- Error message improvements
D. Fixes
- Fixed link count for directories with block devices
- Handled directly setting atime when using relatime or noatime mount options
- Improved cleaning for filesystems which never enabled snapshots when used with the
nosnapshots flag
E. Compatibility
- Preferred block size is now reported as 128KB instead of 4KB for efficient filesystem I/O
- ObjectiveFS 6.0 uses an extended storage format
- Version 6.0 can mount filesystems created by all previous versions
- Version 3.0 and newer can mount filesystems with the 6.0 extended storage format
- Version 2.1.1 (2014) and older are not compatible with the 6.0 extended storage format, but a filesystem with the 6.0 extended storage format can be downgraded to be compatible to work with these versions if needed.
5.5.2
Release date: January 14, 2019
- Fixed issue where nodes that create large number of files have a small chance of inode reuse
- MacOS only: updated FUSE for macOS to version 3.8.3
5.4.2
Release date: January 14, 2019
- Backported: Fixed issue where nodes that create large number of files have a small chance of inode reuse
- Backported: MacOS only: updated FUSE for macOS to version 3.8.3
5.5.1
Release date: October 28, 2018
- MacOS only: updated FUSE for macOS to version 3.8.2
5.5
Release date: June 21, 2018
- Write performance improvements including improved buffer and link management
- Improved write speed for remote object stores and high network latency links
- Improved write speed for geo-distributed object stores
- Improved write speed for on-premise object stores
- Improved link bandwidth predictor
- Improved compressible data write performance
- New
fsavail mount option to set the available filesystem space
bulkdata and ocache are now enabled by default- Added support for SI/IEC when setting
CACHESIZE and DISKCACHE_SIZE
- No changes in file system format. All versions of ObjectiveFS are compatible with 5.5
5.4.1
Release date: April 10, 2018
- Fixed issue when using new bulkdata mode with slow links and certain write patterns
- Improved support for very large memory cache size (500GB+ CACHESIZE)
5.4
Release date: March 26, 2018
- New cache in object store (ocache) to improve mount time
- New bulk data mode (bulkdata) to improve performance for filesystems with high write activity
- New memory reduction option (mboost) to balance performance/memory for larger filesystems
- Use default ACL handling for removexattr for better AUFS compatibility
- Improved log messages
- No changes in file system format. All versions of ObjectiveFS are compatible with 5.4
5.3.1
Release date: December 3, 2017
- Fixed a resource leak in handling certain region-dependent contention cases, issue introduced in 5.3
5.3
Release date: November 22, 2017
- Improved change detection heuristics for lower latency updates from other nodes
- Reduced average write latency to S3 with new buffer management heuristics
- Added support for getting filesystem passphrase from secrets management tools (learn more)
- Allow larger writes when hpc option is set for better throughput on high latency links
- Storage cleaner is enabled by default
- Improved write throughput for very compressible data
- Metadata host is automatically tried when no keys are provided
- New config command option for IAM roles
- Linux only: Updated network settings for faster detection of low-level connection errors
- Set disk cache directory to be excluded from backup programs (learn more)
- Updated config command to trim leading and trailing whitespace from user inputs
- Added verbose flags
-v and -vv for more verbose messages
- Added diagnostic checks for config file permissions when using
-v
- Fixed request back-off handling when object store returns large number of errors
- Fixed a case where the default compact level was used if multiple
-o options were given
- Fixes and improvements for error and informational messages
- No changes in file system format. All versions of ObjectiveFS are compatible with 5.3
5.2
Release date: July 28, 2017
- Optimized storage layout to improve mount time, list time and access time
- New compaction algorithm to support the optimized storage layout
- Added more compaction levels to enable fast storage layout optimization
- Added storage cleaner to reclaim storage from snapshots
- Tuned compaction on write to improve filesystem performance
- Tuned fair queue algorithm to work better with large requests
- Added new
export option to better support remount for NFS/Samba exports
- Added improvement to return free memory to the Linux kernel faster
- Increased the number of reported inodes
- MacOS only: updated FUSE for macOS to version 3.6.3
- No changes in file system format. All versions of ObjectiveFS are compatible with 5.2
5.1.1
Release date: April 25, 2017
- Tunneling proxy support for on-premise object store
- Support for filesystem pool creation using an existing bucket
5.1
Release date: March 26, 2017
- Performance improvements. Metadata up to 30% faster, large file writes up to 2.5X and large file reads up to 1.4X compared to v.5.0
- Multithreaded write and compaction
- Dynamically adjustable object sizes and parallelism on writes
- Improved compaction heuristics for large filesystems
- Improved multithreading performance
- Improved DNS performance: faster retries and reduce number of total queries
- Improved read and write performance for high-latency cross-region buckets
- Optimized index layout for large and mixed file size workloads
- Improved read ahead heuristics
- Improved responsiveness during large file reads
- Increased max reported filesystem size
- Monitor disk cache performance and bypass to S3 if disk cache is too slow
- Faster identification of DNS configuration changes
- Google Cloud Storage: use AWS_DEFAULT_REGION on filesystem creation
- No changes in file system format. All versions of ObjectiveFS are compatible with 5.1
5.0
Release date: January 12, 2017
- Snapshots: automatic and checkpoint (learn more)
- S3 Transfer Acceleration support (learn more)
- Added protection against OOM killer (Linux)
- Multithreading support on macOS
- MacOS Sierra v.10.12 support
- Simplified setup of on-premise object stores by connecting directly to endpoints
- Simplified use of on-premise object stores with http AWS_DEFAULT_REGION support
- Improved performance for large sequential reads
- Improved Samba support for 16GB+ files
- Better list command handling of large number of filesystems
- Better compatibility for empty extended attributes
- Extended config to configure AWS_DEFAULT_REGION
- Added AWS S3 new regions: Ohio (us-east-2), Canada (ca-central-1), London (eu-west-2)
- No changes in file system format. All versions of ObjectiveFS are compatible with 5.0
4.3.4
Release date: October 3, 2016
- Expanded AWS_DEFAULT_REGION support for all commands
- Added AWS Asia Pacific (Mumbai) region: ap-south-1
- Added Google Cloud Storage regional locations
4.3.3
Release date: August 15, 2016
- Fixed a scenario where update propagation between nodes could sometimes be delayed
- Improved user interface message when creating a filesystem using the default region
4.3.2
Release date: July 26, 2016
- Linux only: Fixed Windows directory listing interoperability when exporting using Samba/NFS
4.3.1
Release date: June 28, 2016
- Improved handling of DNS queries for certain network errors
4.2.2
Release date: June 28, 2016
- Backported: improved handling of DNS queries for certain network errors
4.3
Release date: May 30, 2016
- Local license check support (learn more)
- Memory improvements to significantly reduce memory usage
- Cache changes to increase memory efficiency
- Disk cache cleaner with faster response and less memory and cpu usage
- Disk cache cleaner updated to be inode-aware and to work better with EBS disks
- Improved cache efficiency for reads of large files
- Compaction rate improvements
- New flag to enable mount on a non-empty directory
- Improved help text
- No changes in file system format. All versions of ObjectiveFS are compatible with 4.3
4.2.1
Release date: May 30, 2016
- Fix for disk cache cleaner start-up with background mount
4.2
Release date: April 26, 2016
- Multithreading support for Linux (learn more)
- I/O thread pools
- Automatically increases parallel fuse connections for parallel workloads
- Up to 20% speed up in cached responses
- Various caching performance improvements
- Wait for mount directory to be ready before daemonizing
- Caching statistics logging (learn more)
- OSX only: support new OSX fuse version 3.2
- Improved some error messages
- No changes in file system format. All versions of ObjectiveFS are compatible with 4.2
4.1.6
Release date: April 26, 2016
- Improved handling of slow S3 list responses
4.1.5
Release date: April 3, 2016
- Faster retries on truncated S3 list responses
4.1.4
Release date: March 20, 2016
- Added noratelimit flag to disable S3 requests rate limits
4.1.3
Release date: February 7, 2016
- Http proxy only: support for getting settings in directory
4.1.2
Release date: January 28, 2016
- IBM Cleversafe object store change back off timing for retries
4.1.1
Release date: January 25, 2016
- Fix for fair queue reads, issue introduced in 4.1
4.1
Release date: January 11, 2016
This major release has many new features and improvements including a large reduction in memory usage, HPC support for large sequential reads and writes, http proxy, user id mapping, Amazon server-side encryption (AWS KMS) support and ap-northeast-2 support.
A. Major Changes and Features
- High-performance computing (HPC) support for faster (100+MB/s) read/write of large sequential files
- Amazon server side encryption support including AWS Key Management Service (KMS) (learn more)
- HTTP proxy support to access object store (learn more)
- User ID and Group ID mapping support (learn more)
- High-bandwidth mode support when hpc flag is set
- AWS Asia Pacific (Seoul) region: ap-northeast-2
- More robust clock skew handling and detection
B. Performance
- Reduced memory usage for directories and extended attributes
- Reduced memory usage for the memory cache
- Updated the main index to a more memory-efficient data structure
- Updated compaction heuristics to be more aggressive in reducing memory usage
- Faster compression for small blocks
- Added fair queue policy to let small requests bypass big/slow requests
- Lowered the minimum required free space for disk cache for dedicated cache partitions
- Optimized caching heuristics for web server workload to reduce latency bumps under high loads
- Improved memory cache performance
C. Others
D. Compatibility
- No changes in file system format. All versions of ObjectiveFS are compatible with 4.1
4.0.3
Release date: October 31, 2015
- Reliability fix for compaction (for v.4.0+)
4.0.2
Release date: October 15, 2015
- OS X only: Added support for El Capitan System Integrity Protection (SIP) and changed kernel interface
4.0.1
Release date: September 28, 2015
- Added workaround for Amazon S3 us-east-1 issue where incorrect bucket creation status code is returned
- Removed overly-strict bucket name check in list command to handle non-ObjectiveFS buckets better
- Improved reporting and error messaging
4.0
Release date: September 8, 2015
This major release has many new features such as disk cache, compaction on write, connection pooling, us-east-1 support and significant performance improvements. These improvements reduce latency, lower memory usage and reduce the number of S3 operations.
A. Major Changes and Features
- Disk cache support learn more
- Content is compressed, encrypted and has strong integrity checks
- Can be shared between multiple filesystems
- Faster start up time and fewer S3 operations
- Connection pooling to reduce request latency
- Compaction on write to reduce the number of S3 objects stored
- US Standard (us-east-1) region support
- Faster detection of compaction done on other nodes to lower memory usage
- Index generation heuristics improvements to lower memory usage and to reduce S3 operations
- Request queue improvement to reduce latency for parallel read operations
B. Performance
- Caching algorithm update with more detailed tracking to improve latency for large directories with 100k+ files
- Cache operations optimizations to improve speed
- Prioritize metadata in cache
- Prefetch algorithm improvements for small files
- Read ahead improvements for very large files
- Read ahead optimizations to improve performance for multiple streams of videos
- Lower cpu usage
- General responsiveness and latency improvements
C. Improvements
- Reduce default cache size for low memory machines
- Make use of Linux o_noatime hint
- Count kernel-referenced data as part of cache usage
- Retry list operations for additional S3 error conditions
- Improve user interface error messages
- Reduce inode memory usage
D. Fixes
- Fix for potential stale read corner case with very low cache size (only in 3.2)
E. Compatibility
- No changes in file system format. All versions of ObjectiveFS are compatible with 4.0
3.2
Release date: July 21, 2015
New user interface with easy-to-use commands
- New
config command to easily set up the required variables
- New
list command to display user’s file systems with region and type info
- Updated
create command with simpler usage and ability to specify regions directly
- Updated
mount command with improved messaging and ability to run in background
- Updated
destroy command with simpler usage
- Simpler installation with OSX package, and Linux rpm and deb packages
- More detailed log messages for error responses from AWS S3/GCS
Features
- Multiple file systems per bucket support
- AWS v4 signature support, including Frankfurt data center support
- Smart key-based selection of AWS S3 vs GCS storage backend
- Preliminary support for auto mount on OSX
- Support for GCS regions
- Mount on boot support for additional Linux distributions: e.g. Ubuntu, Debian, SUSE
- OS shutdown signal response handling
Performance Improvements
- Improved responsiveness for directory listing
- Improved caching responsiveness to updates from other nodes
- Significant reduction in list operations for common usage patterns
- Improved start up performance
- Improved compaction heuristics
- Reduced memory usage
Fixes
- Various GCS compatibility fixes, including adapting to variable response time from GCS
Compatibility
- No changes in file system format. All versions of ObjectiveFS are compatible with 3.2
3.1
Release date: April 20, 2015
- Significant reduction of memory footprint
- Reduced inode cache usage
- Fixed initial rsync slowdown for certain directory structures
- Better support for mount on boot
- Small latency improvement for first uncached directory access
- Enable compaction by default
- No changes in file system format. All versions of ObjectiveFS are compatible with 3.1
3.0.1
Release date: March 3, 2015
- Beta support for Google Cloud Storage
- Fix for small cache for handling certain workloads
- Output cache size and S3 region at file system startup
- No changes in file system format. All versions of ObjectiveFS are compatible with 3.0.1
3.0
Release date: February 25, 2015
A. Major Changes and Features
- Easy mount on boot
- Support for mounting file system from /etc/fstab on boot
- Faster synchronization speed between machines
- Re-key live file system
- User can change AWS keys without restarting the file system
- User settable cache size support
- User can set the read cache size as a percentage of memory or absolute value
- Read-only mode mount option
- Additional access time settings
- Added reltime, noatime and nodiratime, in addition to strictatime
- Parallel writes to S3
- For write performance speed up
- Compaction support
- Dropping of root after file system start to run as a different user
B. Performance and Improvements
- Reduced memory usage for large file systems
- Improved decompression speed
- Improved synchronization speed between machines
- Added environment variables in files support
- Added additional error handling support
C. Fixes
- Fixed file hole creation for uncached files
- Added compatibility with Linux for non-empty directory move target
D. Compatibility
- No changes in file system format. All versions of ObjectiveFS are compatible with 3.0
2.1.1
Release date: October 26, 2014
- Better handling of sleeping on OS X
- Fix for undocumented OS X limitation
- No changes in file system format. All versions of ObjectiveFS are compatible with 2.1.1
2.1
Release date: July 28, 2014
- Handle rekeying from Amazon
- Minor improvements for DNS
- No changes in file system format. All versions of ObjectiveFS are compatible with 2.1
2.0.1
Release date: July 16, 2014
- Added support for session security token when using AWS STS
- No changes in file system format. All versions of ObjectiveFS are compatible with 2.0.1
2.0
Release date: June 3, 2014
A. Major Changes and Features
- Added unified metadata and data cache
- Improved handling of Linux ACL
- Added support for compressed data detection
- Support environment variables for configuration
- Support for user’s non-DevPay S3 buckets
- Improved sync speed to object store
B. Performance and Improvements
- Improved read ahead algorithm
- Reduce cache memory use
- Various performance optimization
- Faster synchronization between nodes
- Speed improvement for compressed data
C. Fixes
- Improved ctime handling
- Better symlink compatibility
Compatibility
- No changes in file system format. All versions of ObjectiveFS are compatible with 2.0
Pre 2.0
1.0 (Release date: July 30, 2013)
1.0 Release Candidate (Release date: May 23, 2013)
First public beta (Release date: April 3, 2013)
