Disable data compression by default (#286)

README.md

@@ -20,7 +20,7 @@ The highlighted features are:
 In addition, there are some other features:
 
 - **Global File Locks**: JuiceFS supports both BSD locks (flock) and POSIX record locks (fcntl).
-- **Data Compression**: By default JuiceFS uses [LZ4](https://lz4.github.io/lz4) to compress all your data, you could also use [Zstandard](https://facebook.github.io/zstd) instead.
+- **Data Compression**: JuiceFS supports use [LZ4](https://lz4.github.io/lz4) or [Zstandard](https://facebook.github.io/zstd) to compress all your data.
 - **Data Encryption**: JuiceFS supports data encryption in transit and at rest, read [the guide](docs/en/encrypt.md) for more information.
 
 ---

README_CN.md

@@ -20,7 +20,7 @@
 除此之外，JuiceFS 还具有其它一些特性：
 
 - **文件锁**：支持 BSD 锁（flock）及 POSIX 锁（fcntl）；
-- **数据压缩**：默认使用 [LZ4](https://lz4.github.io/lz4) 压缩数据，节省存储空间；
+- **数据压缩**：支持使用 [LZ4](https://lz4.github.io/lz4) 或者 [Zstandard](https://facebook.github.io/zstd) 压缩数据，节省存储空间；
 - **数据加密**: 支持传输中加密（encryption in transit）以及静态加密（encryption at rest），请查看[这个文档](docs/en/encrypt.md)了解更多信息。
 
 ---

cmd/format.go

@@ -242,7 +242,7 @@ func formatFlags() *cli.Command {
 			},
 			&cli.StringFlag{
 				Name:  "compress",
-				Value: "lz4",
+				Value: "none",
 				Usage: "compression algorithm (lz4, zstd, none)",
 			},
 			&cli.StringFlag{

docs/en/command_reference.md

@@ -65,7 +65,7 @@ juicefs format [command options] REDIS-URL NAME
 size of block in KiB (default: 4096)
 
 `--compress value`\
-compression algorithm (lz4, zstd, none) (default: "lz4")
+compression algorithm (lz4, zstd, none) (default: "none")
 
 `--storage value`\
 Object storage type (e.g. s3, gcs, oss, cos) (default: "file")

docs/en/comparison_with_others.md

@@ -59,7 +59,7 @@ JuiceFS provides strong consistency, both metadata and data. **The metadata serv
 
 ### Data compression
 
-By default JuiceFS uses [LZ4](https://lz4.github.io/lz4) to compress all your data, you could also use [Zstandard](https://facebook.github.io/zstd) instead. Alluxio doesn't have this feature.
+JuiceFS supports use [LZ4](https://lz4.github.io/lz4) or [Zstandard](https://facebook.github.io/zstd) to compress all your data. Alluxio doesn't have this feature.
 
 ### Data encryption