Hi,
Recently I have encountered a problem when updating maven dependency in tsfile
module: when starting client in windows os, I will get an error: "The input
line is too long."
It is resulted by limitation of the maximum length of the string that can be
used at the command line: "On computers running Microsoft Windows XP or later,
the maximum length of the string that you can use at the command prompt is 8191
characters. On computers running Microsoft Windows 2000 or Windows NT 4.0, the
maximum length of the string that you can use at the command prompt is 2047
characters. This limitation applies to the command line, individual environment
variables (such as the PATH variable) that are inherited by other processes,
and all environment variable expansions. If you use Command Prompt to run batch
files, this limitation also applies to batch file processing.?? [1]
With the suggestion of @Jialin Qiao, I reduced the dependency (from
hadoop-client to hadoop-common), and local tests are all passed. However, the
tests on Travis CI still failed.
Thanks to @Tian Jiang, I changed the set CLASSPATH statement in .bat file of
starting client:
Previous:
```
for %%i in ("%IOTDB_CLI_HOME%\lib\*.jar") do call :append "%%i"
goto okClasspath
:append
set CLASSPATH=%CLASSPATH%;%1
goto :eof
```
And now:
```
set CLASSPATH=%IOTDB_CLI_HOME%\lib\*
```
This avoid too long input line of CLASSPATH, which resolves the problem.
The error confused me for really a long time... And I think maybe this solution
will help you in the future. If you have any other suggestions and ideas,
welcome to discuss with us : )
[1]
https://support.microsoft.com/en-us/help/830473/command-prompt-cmd-exe-command-line-string-limitation
BR,
------------------
Zesong Sun
School of Software, Tsinghua University
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