Re: [BUGS] BUG #7534: walreceiver takes long time to detect n/w breakdown

On Thu, Nov 8, 2012 at 2:22 AM, Heikki Linnakangas
<hlinnakangas(at)vmware(dot)com> wrote:
> On 16.10.2012 15:31, Heikki Linnakangas wrote:
>>
>> On 15.10.2012 19:31, Fujii Masao wrote:
>>>
>>> On Mon, Oct 15, 2012 at 11:27 PM, Heikki Linnakangas
>>> <hlinnakangas(at)vmware(dot)com> wrote:
>>>>
>>>> On 15.10.2012 13:13, Heikki Linnakangas wrote:
>>>>>
>>>>>
>>>>> Oh, I didn't remember that we've documented the specific structs
>>>>> that we
>>>>> pass around. It's quite bogus anyway to explain the messages the way we
>>>>> do currently, as they are actually dependent on the underlying
>>>>> architecture's endianess and padding. I think we should refactor the
>>>>> protocol to not transmit raw structs, but use pq_sentint and friends to
>>>>> construct the messages. This was discussed earlier (see
>>>>>
>>>>>
>>>>> http://archives.postgresql.org/message-id/4FE2279C.2070506@enterprisedb.com)
>>>>>
>>>>> I think there's consensus that 9.3 would be a good time to do that
>>>>> as we changed the XLogRecPtr format anyway.
>>>>
>>>>
>>>> This is what I came up with. The replication protocol is now
>>>> architecture-independent. The WAL format itself is still
>>>> architecture-independent, of course, but this is useful if you want
>>>> to e.g
>>>> use pg_receivexlog to back up a server that runs on a different
>>>> platform.
>>>>
>>>> I chose the int64 format to transmit timestamps, even when compiled with
>>>> --disable-integer-datetimes.
>>>>
>>>> Please review if you have the time..
>>>
>>>
>>> Thanks for the patch!
>>>
>>> When I ran pg_receivexlog, I encountered the following error.
>>
>>
>> Yeah, clearly I didn't test this near enough...
>>
>> I fixed the bugs you bumped into, new version attached.
>
>
> Committed this now, after fixing a few more bugs that came up during
> testing.

As I suggested upthread, pg_basebackup and pg_receivexlog no longer
need to check integer_datetimes before establishing the connection,
thanks to this commit. If this is right, the attached patch should be applied.
The patch just removes the check of integer_datetimes by pg_basebackup
and pg_receivexlog.

Regards,

--
Fujii Masao