v5.1.0

Dependencies

Component	Version
dingo-sdk	branch v1.1 @ e6b64a8
dingo-eureka	rocky9-fs-4df4df9

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What's New

Client

• Support storing tiny file data directly to the metadata system
• Show FUSE connection info in client dashboard
• Show chunk cache stats on monitoring page
• Add block cache statistics to dashboard
• Add client_access_logging_verbose flag for verbose access logging
• Improve getxattr performance via inode cache
• Support prefetching one or more blocks ahead
• Support FUSE read zero-copy
• Submit prefetch tasks asynchronously
• Refactored VFS block prefetch logic
• Refactored warmup: progress now measured by blocks instead of files
• Tuned write path, random read, and readahead performance
• Refactored umount client logic

Bug Fixes (Client)

• Fixed FUSE attr/entry cache timeout configuration
• Fixed read-after-write across multiple file descriptors
• Fixed flush-all-slice assert failure
• Fixed compact chunk and compact timeout issues
• Fixed chunk version assert failure
• Fixed file session assert failure
• Fixed file close / invalidate deadlock
• Fixed async open/close issues
• Fixed readslice issues
• Fixed ctime/mtime exception
• Fixed prefetch: block limit was capped at 4G; fixed missing blocks in prefetch
• Fixed read exception causing file truncation
• Fixed chunk cache update causing data corruption
• Fixed coredump when building meta fails
• Fixed dingo-fuse hang when mounting a filesystem in deleted state
• Fixed read file hang when using fuse_reply_iov with oversized iov
• Fixed flush sequence incorrectness under concurrent write/flush
• Fixed read incorrect data issue
• Fixed coredump in read path

BlockCache

• Improve cache read/write performance
• Use direct I/O for all file operations and optimize io_uring usage
• Optimized connection pooling with fixed connection pool
• Support move for IOBuffer
• Fix --cache_dir parameter not supporting semicolon-separated directories
• Fix --conf parameter not taking effect in certain cases
• Fix --free_space_ratio parameter not working
• Fix cache node unable to exit properly
• Fix incorrect cache size displayed on startup
• Fix block not cleaned up when prefetch fails
• Add storage upload retry timeout policy
• Log errors when cache node fails to start

Metadata Service (MDS)

• Support TiKV async transaction
• Optimize store operation schedule thread
• Support client RPC failover
• Support file and directory read cache at FUSE layer
• Support getting directory quota for statfs
• Support renaming deleted filesystem name to avoid conflict with new FS of same name
• Support validating queue wait timeout
• Support showing MDS cache summary
• Add trace support for dingo-sdk transactions
• Add update fs s3/rados info command
• Add IP field for mountpoint info
• Add client retry for ESTORE_MAYBE_RETRY
• Fixed TiKV scan out-of-range issues
• Fixed TiKV transaction lost update
• Fixed batch delete block exceeding max value (1000)
• Fixed compact chunk issues (using old file length)
• Fixed readdir issues
• Fixed fs tree view display issues on page
• Fixed WorkerSet queue wait/run latency metrics
• Fixed store operation known issues

Common / General

• Support POSIX ioctl
• Support automatically cleaning logs
• Redirect standard input/output log path in daemonize mode
• Change default runtime directory to /var when run as root
• Add block access benchmark tool
• Add Rados configuration support
• Refactored project layout and config modules
• Add open telemetry trace
• Fixed inconsistency between command-line help and log file values for flags
• Fixed wrong gflags current value shown in log file
• Fixed coredump when wrapper is destroyed

Monitoring

• Add slice metrics
• Fix wrong in-flight operation count metrics
• Restructure dingo monitor commands
• Use snake_case parameters in result response
• Fix monitor script exception when no target is configured
• Add mdsaddr flag for target_json.py
• Add cluster performance dashboard

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Full Changelog: v5.0.1...v5.1.0