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-# SeaweedFS Hadoop2 Client
-
-Hadoop FileSystem implementation for SeaweedFS, compatible with Hadoop 2.x/3.x.
-
-## Building
-
-```bash
-mvn clean install
-```
-
-## Testing
-
-This project includes two types of tests:
-
-### 1. Configuration Tests (No SeaweedFS Required)
-
-These tests verify configuration handling and initialization logic without requiring a running SeaweedFS instance:
-
-```bash
-mvn test -Dtest=SeaweedFileSystemConfigTest
-```
-
-### 2. Integration Tests (Requires SeaweedFS)
-
-These tests verify actual FileSystem operations against a running SeaweedFS instance.
-
-#### Prerequisites
-
-1. Start SeaweedFS with default ports:
-   ```bash
-   # Terminal 1: Start master
-   weed master
-   
-   # Terminal 2: Start volume server
-   weed volume -mserver=localhost:9333
-   
-   # Terminal 3: Start filer
-   weed filer -master=localhost:9333
-   ```
-
-2. Verify services are running:
-   - Master: http://localhost:9333
-   - Filer HTTP: http://localhost:8888
-   - Filer gRPC: localhost:18888
-
-#### Running Integration Tests
-
-```bash
-# Enable integration tests
-export SEAWEEDFS_TEST_ENABLED=true
-
-# Run all tests
-mvn test
-
-# Run specific test
-mvn test -Dtest=SeaweedFileSystemTest
-```
-
-### Test Configuration
-
-Integration tests can be configured via environment variables or system properties:
-
-- `SEAWEEDFS_TEST_ENABLED`: Set to `true` to enable integration tests (default: false)
-- Tests use these default connection settings:
-  - Filer Host: localhost
-  - Filer HTTP Port: 8888
-  - Filer gRPC Port: 18888
-
-### Running Tests with Custom Configuration
-
-To test against a different SeaweedFS instance, modify the test code or use Hadoop configuration:
-
-```java
-conf.set("fs.seaweed.filer.host", "your-host");
-conf.setInt("fs.seaweed.filer.port", 8888);
-conf.setInt("fs.seaweed.filer.port.grpc", 18888);
-```
-
-## Test Coverage
-
-The test suite covers:
-
-- **Configuration & Initialization**
-  - URI parsing and configuration
-  - Default values
-  - Configuration overrides
-  - Working directory management
-
-- **File Operations**
-  - Create files
-  - Read files
-  - Write files
-  - Append to files
-  - Delete files
-
-- **Directory Operations**
-  - Create directories
-  - List directory contents
-  - Delete directories (recursive and non-recursive)
-
-- **Metadata Operations**
-  - Get file status
-  - Set permissions
-  - Set owner/group
-  - Rename files and directories
-
-## Usage in Hadoop
-
-1. Copy the built JAR to your Hadoop classpath:
-   ```bash
-   cp target/seaweedfs-hadoop2-client-*.jar $HADOOP_HOME/share/hadoop/common/lib/
-   ```
-
-2. Configure `core-site.xml`:
-   ```xml
-   <configuration>
-     <property>
-       <name>fs.seaweedfs.impl</name>
-       <value>seaweed.hdfs.SeaweedFileSystem</value>
-     </property>
-     <property>
-       <name>fs.seaweed.filer.host</name>
-       <value>localhost</value>
-     </property>
-     <property>
-       <name>fs.seaweed.filer.port</name>
-       <value>8888</value>
-     </property>
-     <property>
-       <name>fs.seaweed.filer.port.grpc</name>
-       <value>18888</value>
-     </property>
-   </configuration>
-   ```
-
-3. Use SeaweedFS with Hadoop commands:
-   ```bash
-   hadoop fs -ls seaweedfs://localhost:8888/
-   hadoop fs -mkdir seaweedfs://localhost:8888/test
-   hadoop fs -put local.txt seaweedfs://localhost:8888/test/
-   ```
-
-## Continuous Integration
-
-For CI environments, tests can be run in two modes:
-
-1. **Configuration Tests Only** (default, no SeaweedFS required):
-   ```bash
-   mvn test -Dtest=SeaweedFileSystemConfigTest
-   ```
-
-2. **Full Integration Tests** (requires SeaweedFS):
-   ```bash
-   # Start SeaweedFS in CI environment
-   # Then run:
-   export SEAWEEDFS_TEST_ENABLED=true
-   mvn test
-   ```
-
-## Troubleshooting
-
-### Tests are skipped
-
-If you see "Skipping test - SEAWEEDFS_TEST_ENABLED not set":
-```bash
-export SEAWEEDFS_TEST_ENABLED=true
-```
-
-### Connection refused errors
-
-Ensure SeaweedFS is running and accessible:
-```bash
-curl http://localhost:8888/
-```
-
-### gRPC errors
-
-Verify the gRPC port is accessible:
-```bash
-# Should show the port is listening
-netstat -an | grep 18888
-```
-
-## Contributing
-
-When adding new features, please include:
-1. Configuration tests (no SeaweedFS required)
-2. Integration tests (with SEAWEEDFS_TEST_ENABLED guard)
-3. Documentation updates
-