Re: where is pg_resetxlog ?

On Sat, Jul 25, 2009 at 1:08 PM, Kevin
Kempter<kevink(at)consistentstate(dot)com> wrote:
> On Saturday 25 July 2009 13:02:52 Scott Marlowe wrote:
>> On Sat, Jul 25, 2009 at 12:55 PM, Kevin
>>
>> Kempter<kevink(at)consistentstate(dot)com> wrote:
>> > Hi all;
>> >
>> > I'm trying to restore from a tar of the filesystem on a debian box and I
>> > get xlog errors.
>> >
>> > I suspect I need to run pg_resetxlog but I cannot find it anywhere, where
>> > would I find pg_resetxlog on a debian box that was installed via the deb
>> > packages ? or how do I get it ?
>>
>> Wait, if you're restoring a backup, to a freshly initted db, then you
>> shouldn't be getting any kind of pg_xlog errors.  If you are, then
>> there's likely something wrong with your server that pg_resetxlog
>> isn't going to fix in the long term.  Are you running on windows with
>> anti-virus software or have some other kind of possible problem that
>> could be causing a problem with the postmaster writing to the hard
>> drives?
>
> we're not restoring from a pg_dump. We were in the process of moving the db to
> a new server. We brought the db down (on host A) and did an rsync of all the
> db dir's (including tablespace dir's) to host B.
>
> Then bad things were done to host A and we want to get back to where we
> started. So, we stopped the db on host A and rsync'ed the files back from host
> B to host A.  Now when I try and start the db I see all these tx sement errors
> in the log.
>
> We're actually ok if we loose anything that was in the pg_xlog dir.

Did you rsync the pg_xlog and pg_clog (i.e. EVERYTHING under data/) or
just the base directory? You really need to do an rsync of
everything, not most everything.