hdfs所有基础命令测试脚本
时间: 2024-04-18 08:08:30 浏览: 178
以下是HDFS的基础命令测试脚本,可以用于测试HDFS的基础命令是否可用。
```bash
#!/bin/bash
# Create directory
hdfs dfs -mkdir /testdir
# Create file
echo "Hello World" > test.txt
hdfs dfs -put test.txt /testdir
# List files
hdfs dfs -ls /testdir
# Read file
hdfs dfs -cat /testdir/test.txt
# Copy file
hdfs dfs -cp /testdir/test.txt /testdir/test_copy.txt
# Move file
hdfs dfs -mv /testdir/test.txt /testdir/test_move.txt
# Delete file
hdfs dfs -rm /testdir/test_copy.txt
# Delete directory
hdfs dfs -rmdir /testdir
```
运行以上脚本,如果没有出现错误,则说明HDFS的基础命令可用。
相关问题
再提供一个hdfs dfsadmin全量命令测试脚本
下面是一个HDFS `dfsadmin` 全量命令测试脚本的示例:
```bash
#!/bin/bash
# Set variables
HDFS_USER=hdfs
HDFS_COMMAND=/usr/local/hadoop/bin/hdfs
NAMENODE_HOST=localhost
# Check if HDFS is running
$HDFS_COMMAND dfsadmin -report >/dev/null 2>&1
if [ $? -eq 0 ]; then
echo "HDFS is running"
else
echo "HDFS is not running"
exit 1
fi
# Check if HDFS user has permissions
su $HDFS_USER -c "$HDFS_COMMAND dfsadmin -report" >/dev/null 2>&1
if [ $? -eq 0 ]; then
echo "HDFS user has permissions"
else
echo "HDFS user does not have permissions"
exit 1
fi
# Check if namenode is active
$HDFS_COMMAND dfsadmin -report | grep -A1 "Name:" | grep "$NAMENODE_HOST:8020" >/dev/null 2>&1
if [ $? -eq 0 ]; then
echo "Namenode is active"
else
echo "Namenode is not active"
exit 1
fi
# Check if all datanodes are active
$HDFS_COMMAND dfsadmin -report | grep "Datanodes available:" >/dev/null 2>&1
if [ $? -eq 0 ]; then
echo "All datanodes are active"
else
echo "Not all datanodes are active"
exit 1
fi
# Check if all blocks are replicated
$HDFS_COMMAND dfsadmin -report | grep "Under replicated blocks:" >/dev/null 2>&1
if [ $? -eq 0 ]; then
echo "All blocks are replicated"
else
echo "Not all blocks are replicated"
exit 1
fi
echo "HDFS is healthy"
exit 0
```
这个脚本将检查HDFS是否正在运行,HDFS用户是否有权限,namenode是否处于活动状态,所有datanode是否处于活动状态以及所有块是否被复制。如果所有检查都通过,脚本将输出"HDFS is healthy",否则将输出错误消息并退出。
hdfs基础命令自动化测试脚本
以下是一个基本的HDFS命令自动化测试脚本的例子:
```python
import os
# 定义需要测试的命令列表
command_list = [
"hadoop fs -ls /",
"hadoop fs -mkdir /test",
"hadoop fs -put local_file.txt /test/",
"hadoop fs -cat /test/local_file.txt",
"hadoop fs -rm -r /test"
]
# 循环执行每个命令并输出结果
for command in command_list:
print("Executing command: " + command)
result = os.popen(command).read()
print(result)
```
在这个例子中,我们使用`os.popen()`来执行HDFS命令,并使用`read()`方法获取命令执行结果。我们可以根据需要添加更多的命令到`command_list`中,以进行更全面的测试。
阅读全文