刘珍 created IOTDB-5156:
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             Summary: The backup data is twice the size of the source data
                 Key: IOTDB-5156
                 URL: https://issues.apache.org/jira/browse/IOTDB-5156
             Project: Apache IoTDB
          Issue Type: Improvement
          Components: mpp-cluster
            Reporter: 刘珍
            Assignee: Jialin Qiao
         Attachments: image-2022-12-08-21-08-54-494.png

master 
问题描述:
备份iotdb的data,大小是源data 的2倍。
cp -rp m_1207_a0b2c8c_fast2/data  m_1208_7f2218b_fast2/
备份出来的数据大小是源data的2倍:
源snapshot 中的文件是硬链接,备份snapshot的文件会是普通文件:
 !image-2022-12-08-21-08-54-494.png! 

测试流程
1.启动1副本1C1D(sbin/start-standalone.sh)
2. 写入数据
3. 正常停止datanode(会take snapshot)
4. 备份数据




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