jsch ChannelExec 使用 nohup "lose" 运行 .sh 脚本一些命令 [英] jsch ChannelExec run a .sh script with nohup "lose" some commands

问题描述

我有一个 .sh 脚本，它粘合了许多其他脚本，由 Windows 应用程序的 jsch ChannelExec 调用.

I hava a .sh script which glues many other scripts, called by jsch ChannelExec from a windows application.

Channel channel = session.openChannel("exec");

((ChannelExec) channel).setCommand("/foo/bar/foobar.sh");

channel.connect();

如果我运行像nohup/foo/bar/foobar.sh >>/path/to/foo.log &"这样的命令，所有的长期工作(数据库操作、文件处理等)似乎都得到了丢了.

if I run the command like "nohup /foo/bar/foobar.sh >> /path/to/foo.log &", all the long term jobs(database operations, file processing etc.) seems to get lost.

检查日志文件，只找到那些回显的东西(长期操作前后，计算运行时间等).

checking the log file, only find those echo stuffs(before and after a long term operation, calculate running time etc.).

我检查了权限，$PATH，将 source/etc/profile 添加到我的 .sh 中，但这些都不起作用.

I checked the permissions, $PATH, add source /etc/profile to my .sh yet none of these works.

但是当我正常运行命令时(同步运行，在 Windows 上将所有回显输出打印到我的 java 客户端)，一切顺利.

but when I run the command normally (sync run, print all echo outputs to my java client on windows),all the things goes well.

这是一个非常具体的问题.希望有经验的人帮帮我.

it's a really specific prob. Hope someone with experience can help me out.

提前致谢.

韩

推荐答案

已解决！

另一个经常出现的问题这种情况是 ssh 拒绝注销(挂起")，因为它拒绝丢失来自/到的任何数据后台工作.[6][7]这个问题也可以通过重定向来克服所有三个 I/O 流.

A different issue that often arises in this situation is that ssh is refusing to log off ("hangs"), since it refuses to lose any data from/to the background job(s).[6][7] This problem can also be overcome by redirecting all three I/O streams.

来自http://en.wikipedia.org/wiki/Nohup

我的问题是，psql 和 pg_bulkload 将它们的输出打印到 err 流.

My prob is, psql and pg_bulkload print their outputs to err stream.

在我的脚本中，我没有重定向错误流.

In my script, I didn't redirect err streams.

通过将错误流重定向到同一个日志文件，一切顺利.

Everything went fine by also redirecting err streams to the same log file.

nohup foo.sh > log.log 2>&1 &

感谢 Atsuhiko Yamanaka，他创建了一个很棒的 JSch 库，并为 创建了 Paŭlo Ebermannhref="http://epaul.github.com/jsch-documentation/simple.javadoc/" rel="noreferrer">文档.

Thanks to Atsuhiko Yamanaka, he created a great JSch library, and Paŭlo Ebermann for the documentation.

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