SFTP 连接不上，报错com.jcraft.jsch.JSchException: Algorithm negotiation fail
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- Java
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Description
com.alibaba.datax.common.exception.DataXException: Code:[FtpReader-12], Description:[登录失败,无法与ftp服务器建立连接.]. - 与ftp服务器建立连接失败 : - com.jcraft.jsch.JSchException: Algorithm negotiation fail
DataX版本是：202306
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Research direction
Start at the DataX FtpReader entry point and reproduce the SFTP connection failure using DataX 202306, recording the server and client algorithm negotiation details. Determine the compatibility gap behind the JSchException and verify that the affected SFTP connection succeeds without producing the login-failure error.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- java
- Domain
- networking
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100