[WIP]fix: fix rename cmd #165
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Actionable comments posted: 3
🧹 Nitpick comments (2)
src/storage/src/redis_lists.cc (2)
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976-1030: Refactor to eliminate code duplication betweenListsRenameandListsRenamenxThe implementations of
ListsRenameandListsRenamenxshare significant duplicated code. Refactor the common logic into shared functions or methods to improve maintainability and reduce redundancy.Also applies to: 1034-1099
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🪛 GitHub Actions: kiwi
[error] File has clang-format style issues. The formatting does not match the project's style guidelines.
Line range hint
976-1099: Address clang-format style issuesThe pipeline reports that this file has clang-format style issues. Please run clang-format to format the code according to the project's style guidelines.
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🪛 GitHub Actions: kiwi
[error] File has clang-format style issues. The formatting does not match the project's style guidelines.
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src/storage/src/redis_lists.cc(3 hunks)
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🪛 GitHub Actions: kiwi
src/storage/src/redis_lists.cc
[error] File has clang-format style issues. The formatting does not match the project's style guidelines.
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| // todo if value is too many, will slow to rename | ||
| uint32_t version = parsed_lists_meta_value.Version(); | ||
| uint64_t index = parsed_lists_meta_value.LeftIndex() + 1; | ||
| uint64_t right_index = parsed_lists_meta_value.RightIndex() - 1; | ||
| ListsDataKey base_lists_data_key(key, version, index); | ||
| std::vector<std::string> list_nodes; | ||
| rocksdb::Iterator* iter = db_->NewIterator(default_read_options_, handles_[kListsDataCF]); | ||
| uint64_t current_index = index; | ||
| for(iter->Seek(base_lists_data_key.Encode()); iter->Valid() && current_index <= right_index; iter->Next(), current_index++) { | ||
| ParsedBaseDataValue parsed_value(iter->value()); | ||
| list_nodes.push_back(parsed_value.UserValue().ToString()); | ||
| } | ||
| delete iter; | ||
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🛠️ Refactor suggestion
Potential performance issues when renaming large lists
The current implementation loads all list nodes into memory by storing them in list_nodes, which could cause high memory usage and slow performance when renaming large lists. Consider processing the list data in a streaming fashion or using more efficient methods to handle large datasets.
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🪛 GitHub Actions: kiwi
[error] File has clang-format style issues. The formatting does not match the project's style guidelines.
| new_inst->UpdateSpecificKeyStatistics(DataType::kLists, newkey.ToString(), statistic); | ||
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| // ListsDel key | ||
| parsed_lists_meta_value.InitialMetaValue(); | ||
| s = db_->Put(default_write_options_, handles_[kMetaCF], base_meta_key.Encode(), meta_value); | ||
| batch->Delete(kListsDataCF, base_meta_key.Encode()); |
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Ensure atomicity by including old key metadata update in the batch
The update to the old key's metadata on line 1027 is performed outside of the batch using db_->Put. This could result in an inconsistent state if an error occurs after this operation but before the batch commit. To ensure atomicity of the rename operation, include this update within the batch.
Apply this diff to include the metadata update in the batch:
- s = db_->Put(default_write_options_, handles_[kMetaCF], base_meta_key.Encode(), meta_value);
+ batch->Put(kMetaCF, base_meta_key.Encode(), meta_value);Committable suggestion skipped: line range outside the PR's diff.
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🪛 GitHub Actions: kiwi
[error] File has clang-format style issues. The formatting does not match the project's style guidelines.
| new_inst->UpdateSpecificKeyStatistics(DataType::kLists, newkey.ToString(), statistic); | ||
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| // ListsDel key | ||
| parsed_lists_meta_value.InitialMetaValue(); | ||
| s = db_->Put(default_write_options_, handles_[kMetaCF], base_meta_key.Encode(), meta_value); | ||
| batch->Delete(kListsDataCF, base_meta_key.Encode()); |
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Ensure atomicity by including old key metadata update in the batch
Similarly, in the ListsRenamenx method, the update to the old key's metadata is performed outside of the batch using db_->Put. This could lead to inconsistent states if an error occurs. Include this operation in the batch to maintain atomicity.
Apply this diff to include the metadata update in the batch:
- s = db_->Put(default_write_options_, handles_[kMetaCF], base_meta_key.Encode(), meta_value);
+ batch->Put(kMetaCF, base_meta_key.Encode(), meta_value);Committable suggestion skipped: line range outside the PR's diff.
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🪛 GitHub Actions: kiwi
[error] File has clang-format style issues. The formatting does not match the project's style guidelines.
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前期采用“删掉老key数据，写入新key数据”的方式实现，这个命令使用频率不高，性能问题后面再来优化 |
In the early stage, it was implemented by "delete the old key data and write the new key data". This command is not used frequently. Performance issues will be optimized later. |
fix list, set, zset, hash rename and renamenx cmd bug
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