add wal benchmark

content/cn/blog/2024/release-2.1.0.md

@@ -0,0 +1,30 @@
+---
+title: 2.1.0 版本发布
+date: 2024-11-18
+tags: release
+---
+
+Apache HoraeDB（孵化中）团队很高兴地宣布，v2.1.0 版本已于 2024-11-18 发布，这个版本解决了 60 多个问题，并且包括两个主要功能：
+
+## 1. 引入基于本地磁盘的新 WAL 实现
+
+在之前的版本中，有一个基于 RocksDB 的 WAL。虽然它在大多数情况下运行良好，但存在以下问题：
+
+- 从源代码编译可能是一项具有挑战性的任务，尤其是因为 RocksDB 主要是用 C++ 编写的。
+- 对于 WAL 而言，RocksDB 可能有些矫枉过正。如果你对 RocksDB 不熟悉，那么对它进行调整可能会非常具有挑战性。
+
+通过这个新的 WAL，就很好的解决了上面两个问题，而且在性能测试结果，新 WAL 的表现略优于之前的实现，给以后的优化打下了结实的基础。
+
+![写入速率对比](/images/local-wal-write.png)
+![回放速率对比](/images/local-wal-replay.png)
+
+感兴趣的朋友可以参考[这里的设计文档]({{< ref "wal_on_disk.md" >}})了解更多这个特性的细节。
+
+## 2. 使用 Apache OpenDAL 访问对象存储
+
+## 其他
+
+其他错误修复和改进请参见此处：
+https://github.com/apache/horaedb/releases/tag/v2.1.0
+
+> 我们一如既往地热忱欢迎您加入[我们的社区](/community)，分享您的真知灼见。

content/en/blog/2024/release-2.1.0.md

@@ -1,21 +1,46 @@
 ---
 title: Release 2.1.0
 date: 2024-11-18
+tags: release
 ---
 
 The Apache HoraeDB(incubating) team are pleased to announce that v2.1.0 is released, which has closed over 60 issues, including two major features:
 
-- Introduce a new WAL implementation based on local disk.
+## 1. New WAL implementation based on local disk.
 
-  In previous version, there is a RocksDB-based WAL. Although it works well in most cases, it has following issues:
+In previous version, there is a RocksDB-based WAL. Although it works well in most cases, it has following issues:
 
-  - Compiling from source can be a challenging task, especially since RocksDB is primarily written in C++.
-  - For WAL, RocksDB can be somewhat overkill. If you are not familiar with RocksDB, tuning it can be very challenging.
+- Compiling from source can be a challenging task, especially since RocksDB is primarily written in C++.
+- For WAL, RocksDB can be somewhat overkill. If you are not familiar with RocksDB, tuning it can be very challenging.
 
-- Access object store with [Apache OpenDAL](https://github.com/apache/opendal)
+With this new WAL, the above two problems are solved very well, and in performance test, the new WAL slightly outperforms the previous implementation, giving a solid foundation for future optimizations.
+
+![Comparison of Write throughout](/images/local-wal-write.png)
+![Comparison of Replay time](/images/local-wal-replay.png)
+
+Interested readers can refer to the design documentation [here]({{< ref "wal_on_disk.md" >}}) for more details on this feature.
+
+### How to enable
+
+```
+[analytic.wal]
+type = "Local"
+data_dir = "/path/to/local/wal"
+```
+
+## 2. Access object store with [Apache OpenDAL](https://github.com/apache/opendal)
+
+OpenDAL (Open Data Access Layer) is a project that provides a unified API for accessing various data storage backends.
+It offers several advantages for developers and organizations. Here are some key benefits:
+
+- Unified API. OpenDAL provides a consistent and unified API for accessing different storage backends, such as AWS S3, Azure Blob Storage, and local file systems.
+- Optimized for Efficiency: OpenDAL is built with performance in mind. It includes optimizations to ensure efficient data access and manipulation, making it suitable for high-performance applications.
+- Comprehensive Documentation: The project provides detailed documentation, making it easier for developers to get started and understand how to use the library effectively.
+
+## Others
 
 Other bug fixes and improvements can be seen here:
 
 - https://github.com/apache/horaedb/releases/tag/v2.1.0
 
-As always, we warmly welcome you to join our [community](/community) and share your insights.
+> As always, we warmly welcome you to join our [community](/community) and share your insights.

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