Refactor mosaic tile fetching and caching logic; improve CPU core det… #85
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Important Review skippedReview was skipped due to path filters ⛔ Files ignored due to path filters (1)
CodeRabbit blocks several paths by default. You can override this behavior by explicitly including those paths in the path filters. For example, including You can disable this status message by setting the WalkthroughThe changes involve significant updates to the Changes
Sequence Diagram(s)sequenceDiagram
participant User
participant Mosaic
participant Fetcher
User->>Mosaic: Request tile
Mosaic->>Mosaic: Check zoom level
Mosaic->>Mosaic: Validate tile extension
Mosaic->>Fetcher: Fetch tile
Fetcher->>Mosaic: Return tile
Mosaic->>User: Provide tile
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Actionable comments posted: 3
📜 Review details
Configuration used: CodeRabbit UI
Review profile: ASSERTIVE
📒 Files selected for processing (2)
src/mosaic.mjs(11 hunks)src/titiler_fetcher.mjs(2 hunks)
🧰 Additional context used
🪛 Biome (1.9.4)
src/titiler_fetcher.mjs
[error] 6-6: Use Number.parseInt instead of the equivalent global.
ES2015 moved some globals into the Number namespace for consistency.
Safe fix: Use Number.parseInt instead.
(lint/style/useNumberNamespace)
src/mosaic.mjs
[error] 237-237: This let declares a variable that is only assigned once.
'finalTiles' is never reassigned.
Safe fix: Use const instead.
(lint/style/useConst)
[error] 263-263: Use Number.POSITIVE_INFINITY instead of the equivalent global.
ES2015 moved some globals into the Number namespace for consistency.
Safe fix: Use Number.POSITIVE_INFINITY instead.
(lint/style/useNumberNamespace)
🔇 Additional comments (2)
src/mosaic.mjs (1)
46-48: Ensure cache functions handle null values correctly
When a tile doesn't intersect with the image footprint, null is cached using cachePutTile(null, ...). Please verify that cacheGetTile and cachePutTile can correctly handle and distinguish between a cached null value and a cache miss to prevent potential errors or unintended behavior.
src/titiler_fetcher.mjs (1)
50-50: Re-evaluate the priority logic in tile request queue
Changing the priority calculation from Math.pow(2, z) to z alters how tile fetching requests are prioritized. Previously, higher zoom levels had exponentially higher priority, ensuring detailed tiles were fetched sooner. With linear priority, this behavior changes. Please verify that this adjustment aligns with the intended tile fetching strategy and does not negatively impact performance or user experience.
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Actionable comments posted: 4
📜 Review details
Configuration used: CodeRabbit UI
Review profile: ASSERTIVE
⛔ Files ignored due to path filters (5)
__tests__/mosaic@1x-15-18970-11220.pngis excluded by!**/*.png,!**/*.png__tests__/mosaic@2x-11-1233-637.pngis excluded by!**/*.png,!**/*.png__tests__/mosaic@2x-12-2371-1402.pngis excluded by!**/*.png,!**/*.png__tests__/mosaic@2x-13-4742-2805.pngis excluded by!**/*.png,!**/*.png__tests__/mosaic@2x-14-9485-5610.pngis excluded by!**/*.png,!**/*.png
📒 Files selected for processing (4)
__tests__/mosaic.mjs(1 hunks)__tests__/mosaic512px.mjs(1 hunks)src/mosaic.mjs(6 hunks)src/mosaic_cache_invalidation_job.mjs(1 hunks)
🧰 Additional context used
🪛 Biome (1.9.4)
src/mosaic.mjs
[error] 245-245: This let declares a variable that is only assigned once.
'finalTiles' is never reassigned.
Safe fix: Use const instead.
(lint/style/useConst)
[error] 257-257: Use Number.POSITIVE_INFINITY instead of the equivalent global.
ES2015 moved some globals into the Number namespace for consistency.
Safe fix: Use Number.POSITIVE_INFINITY instead.
(lint/style/useNumberNamespace)
__tests__/mosaic512px.mjs
[error] 2-2: A Node.js builtin module should be imported with the node: protocol.
Using the node: protocol is more explicit and signals that the imported module belongs to Node.js.
Unsafe fix: Add the node: protocol.
(lint/style/useNodejsImportProtocol)
[error] 3-3: A Node.js builtin module should be imported with the node: protocol.
Using the node: protocol is more explicit and signals that the imported module belongs to Node.js.
Unsafe fix: Add the node: protocol.
(lint/style/useNodejsImportProtocol)
[error] 25-25: Template literals are preferred over string concatenation.
Unsafe fix: Use a template literal.
(lint/style/useTemplate)
🔇 Additional comments (3)
src/mosaic.mjs (2)
245-245: Use 'const' instead of 'let' for variables that are not reassigned
The variable finalTiles is declared with let but is never reassigned. To enhance code readability and prevent accidental reassignment, consider using const instead.
Apply this diff to fix the issue:
-let finalTiles = mapTilesWithMetadata(rowTiles, resolvedRowTiles, metadataByUuid);
+const finalTiles = mapTilesWithMetadata(rowTiles, resolvedRowTiles, metadataByUuid);🧰 Tools
🪛 Biome (1.9.4)
[error] 245-245: This let declares a variable that is only assigned once.
'finalTiles' is never reassigned.
Safe fix: Use const instead.
(lint/style/useConst)
257-257: Use 'Number.POSITIVE_INFINITY' instead of 'Infinity'
For consistency with ES2015 standards, replace the global Infinity with Number.POSITIVE_INFINITY.
Apply this diff to fix the issue:
- gsd: Infinity,
+ gsd: Number.POSITIVE_INFINITY,🧰 Tools
🪛 Biome (1.9.4)
[error] 257-257: Use Number.POSITIVE_INFINITY instead of the equivalent global.
ES2015 moved some globals into the Number namespace for consistency.
Safe fix: Use Number.POSITIVE_INFINITY instead.
(lint/style/useNumberNamespace)
__tests__/mosaic.mjs (1)
145-145: Test is now active, ensure test coverage and correctness
Activating the previously skipped test increases test coverage. Please verify that the test passes consistently and covers all expected scenarios.
…ection
https://kontur.fibery.io/Tasks/Task/OpenAerialMap-mosaic-prod-performance-issues-20341
Summary by CodeRabbit
New Features
cachedMosaic256pxandcachedMosaic512px).Improvements
Refactor