feat(puffin): implement CachedPuffinReader #4209
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Signed-off-by: Zhenchi <zhongzc_arch@outlook.com>
Signed-off-by: Zhenchi <zhongzc_arch@outlook.com>
Signed-off-by: Zhenchi <zhongzc_arch@outlook.com>
WalkthroughThe recent updates to the puffin codebase introduce new error variants for more granular error handling, add a new module for file access, restructure the cached puffin manager, and implement new functionalities for directory and file metadata management. These enhancements aim to improve error management, streamline code structure, and enhance file handling capabilities within the puffin system. Changes
Sequence Diagram(s)sequenceDiagram
participant Client
participant CachedPuffinReader
participant CacheManager
participant FileAccessor
Client->>+CachedPuffinReader: Request Blob
CachedPuffinReader->>+CacheManager: Retrieve Blob from Cache
CacheManager-->>-CachedPuffinReader: Blob
CachedPuffinReader->>+FileAccessor: Decompress Blob
FileAccessor-->>-CachedPuffinReader: Decompressed Blob
CachedPuffinReader-->>-Client: Blob Data
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Actionable comments posted: 0
Review details
Configuration used: CodeRabbit UI
Review profile: CHILL
Files selected for processing (7)
- src/puffin/src/error.rs (2 hunks)
- src/puffin/src/puffin_manager.rs (1 hunks)
- src/puffin/src/puffin_manager/cached_puffin_manager.rs (1 hunks)
- src/puffin/src/puffin_manager/cached_puffin_manager/dir_meta.rs (1 hunks)
- src/puffin/src/puffin_manager/cached_puffin_manager/reader.rs (1 hunks)
- src/puffin/src/puffin_manager/cached_puffin_manager/writer.rs (2 hunks)
- src/puffin/src/puffin_manager/file_accessor.rs (1 hunks)
Files skipped from review due to trivial changes (2)
- src/puffin/src/puffin_manager.rs
- src/puffin/src/puffin_manager/cached_puffin_manager.rs
Additional comments not posted (9)
src/puffin/src/puffin_manager/cached_puffin_manager/dir_meta.rs (2)
19-21: Well-defined structure for directory metadata.The
DirMetadatastruct is well-defined with appropriate serialization and debugging capabilities. It is crucial to ensure that thefilesvector is handled efficiently in operations to maintain performance.
25-35: Well-defined structure for file metadata within a directory.The
DirFileMetadatastruct includes all necessary fields for managing file metadata. The use ofStringforrelative_pathandkeyis appropriate, but ensure that these fields are consistently validated when used to prevent issues like path traversal or key mismatches.src/puffin/src/puffin_manager/file_accessor.rs (2)
24-33: Appropriate definition of thePuffinFileAccessortrait.The trait is well-defined with asynchronous methods for reader and writer creation, leveraging Rust's async capabilities and type constraints to ensure compatibility with async I/O operations. It is important that error handling is robust in the implementations of these methods to prevent runtime issues.
35-36: Use ofArcfor thread safety and shared ownership.The
PuffinFileAccessorReftype alias usingArcis appropriate for ensuring thread safety and shared ownership across asynchronous tasks. This is crucial in a multi-threaded environment where multiple tasks might access file accessor instances.src/puffin/src/error.rs (3)
201-206: Proper definition of theBlobNotFounderror variant.The
BlobNotFoundvariant is correctly implemented with necessary context information. It is important that this error is handled gracefully in calling code to provide clear feedback to the user or system about missing data.
208-214: Well-defined error variant for blob index issues.The
BlobIndexOutOfBoundvariant provides detailed context for debugging issues related to blob indexing. This will enhance error reporting and debugging capabilities when blob indices are incorrectly accessed.
216-222: Accurate implementation of theFileKeyNotMatcherror variant.The
FileKeyNotMatcherror variant is crucial for detecting mismatches between expected and actual file keys, which can prevent data corruption and unauthorized access. Ensure that this error is used effectively in file operations to safeguard data integrity.src/puffin/src/puffin_manager/cached_puffin_manager/writer.rs (1)
Line range hint
33-64: Well-structured and robust implementation ofCachedPuffinWriter.The
CachedPuffinWriterstruct is appropriately defined with fields that are essential for managing puffin file writing. The constructor methodnewis well-implemented, ensuring that all fields are initialized properly. It is crucial that theHashSetused for tracking written blob keys is managed efficiently to prevent memory bloat.src/puffin/src/puffin_manager/cached_puffin_manager/reader.rs (1)
36-60: Effective implementation ofCachedPuffinReader.The
CachedPuffinReaderstruct is well-defined with essential fields for managing puffin file reading. The constructor methodnewis correctly implemented, ensuring proper initialization of all fields. It is important to ensure that the cache manager and file accessor are utilized efficiently to optimize read performance and resource usage.
Codecov ReportAttention: Patch coverage is
Additional details and impacted files@@ Coverage Diff @@
## main #4209 +/- ##
==========================================
- Coverage 85.02% 84.64% -0.39%
==========================================
Files 1033 1038 +5
Lines 181960 182769 +809
==========================================
- Hits 154707 154697 -10
- Misses 27253 28072 +819 |
zhongzc
requested review from
fengjiachun,
v0y4g3r,
evenyag,
waynexia and
WenyXu
Signed-off-by: Zhenchi <zhongzc_arch@outlook.com>
There was a problem hiding this comment.
Actionable comments posted: 0
Review details
Configuration used: CodeRabbit UI
Review profile: CHILL
Files selected for processing (1)
- src/puffin/src/puffin_manager/cached_puffin_manager/reader.rs (1 hunks)
Files skipped from review as they are similar to previous changes (1)
- src/puffin/src/puffin_manager/cached_puffin_manager/reader.rs
I hereby agree to the terms of the GreptimeDB CLA.
Refer to a related PR or issue link (optional)
#4193
What's changed and what's your intention?
Cooperate with
CacheManagerto implementCachedPuffinWriterChecklist
Summary by CodeRabbit
New Features
Enhancements
CachedPuffinReader.Bug Fixes