unix handler causes exception when it puts much text data

[Kensuke-Mitsuzawa]

https://github.com/Kensuke-Mitsuzawa/JapaneseTokenizers/blob/master/JapaneseTokenizer/jumanpp_wrapper/jumanpp_wrapper.py#L196-L200

This warning message in 2 times

[Y/09/29 16:54:36]WARNING - jumanpp_wrapper.py#call_juman_interface:197: Re-starting unix process because it tak
es longer time than 30 seconds...
[Y/09/29 16:55:06]WARNING - jumanpp_wrapper.py#call_juman_interface:197: Re-starting unix process because it tak
es longer time than 30 seconds...

It seems that final exception is here.

Traceback (most recent call last):
  File "/share/data/home/kensuke_mitsuzawa/fuman-ds-py-academic-service/conda-env/lib/python3.5/site-packages/p$
xpect-4.2.1-py3.5.egg/pexpect/spawnbase.py", line 150, in read_nonblocking
    s = os.read(self.child_fd, size)
OSError: [Errno 5] Input/output error