Re: Get bytes sent to client

Hello.
Extending VisibleBufferedInputStream was not a good idea - work with
buffer (like ensureBytes() calls ) can't be accounted. So, I modified
it. Results are more precise now.

Alexander Pyhalov wrote:
> Good day..
> I've just made new patch - extended BufferedOutputStream and
> VisibleBufferedInputStream, as you suggested. It works, and results are
> comparable with tcpdump data (for received traffic). For sent traffic
> they are incorrect, because I can't account all ACK, but only PGSQL
> traffic.
> It's suprising, that received traffic is more then tcpdump shows ( 2%,
> butt more). I thought it would be a bit smaller then actual data.
> However, this data gives good approximation (2% for 100MB traffic is not
> a lot).
>
> Craig Ringer wrote:
>> On 18/12/2009 2:34 PM, Alexander Pyhalov wrote:
>>>
>>> I've made patch for Postgres JDBC driver. Now driver accounts bytes
>>> sent/received from client ing PGStream.
>>
>> Can't you extend or wrap the pg_input / pg_output streams to do the
>> accounting in their read(...) / write(...) method instead? The way
>> you've done it is rather fragile and is very prone to bitrot as other
>> parts of the driver are changed.
>>
>> --
>> Craig Ringer
>
>
>
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>
>

--
С уважением,
Александр Пыхалов,
системный администратор ЮГИНФО ЮФУ.