And... attached is the Japanese document. For those who are interested.
--
Tatsuo Ishii
SRA OSS K.K.
English: http://www.sraoss.co.jp/index_en/
Japanese:http://www.sraoss.co.jp

>> Thanks for the help! please find attached the latest version with all
>> changes and test passing.
>
> Thanks for updating patch! I confirmed that all test have passed on my
> Ubunu box.  Now I am working on Japanese document. While working on
> it, I did followings to the English document. (see attached)
>
> - Reformat it so that each line is not too long. Like PostgreSQL, I
>   bend each line at most 78 chars. (I know other parts of document do
>   not follow the rule but I do not want to add more lines not
>   following the rule).
>
> - Move replication_delay_source_cmd (string) and
>   replication_delay_source_timeout (integer) at the bottom of
>   "5.12. Streaming Replication Check" section. We usually add the new
>   parameters at the bottom of the page if there's no particular
>   reason. Previously they were in between prefer_lower_delay_standby
>   and log_standby_delay.
>
> - Add following to replication_delay_source_cmd.  "The line can be
>   terminated with or without a new line character." This is observed
>   from the implementation. I believe this matters for those who try to
>   implement replication_delay_source_cmd.
>
> Lastly I have one question.
>
> replication_delay_source_timeout (integer)
>
>     Specifies the timeout in seconds for the external command
>     specified by replication_delay_source_cmd. If the command does not
>     finish within the timeout, Pgpool-II logs an error and continues
>     using the built-in method.
>
> It seems this ("continues using the built-in method") is different
> from the actual behavior. It seems that after timeout, the external
> command is tried and timeout.... Do you want to fix the source code to
> match with the document? Or change (just remove ""continues using the
> built-in method") the document? I am fine with changing the document.
>
> Best regards,
> --
> Tatsuo Ishii
> SRA OSS K.K.
> English: http://www.sraoss.co.jp/index_en/
> Japanese:http://www.sraoss.co.jp