Обсуждение: wal archive showing zero size

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wal archive showing zero size

От
mail list
Дата:
I have WAL archiving enabled and after a failure the other day i tried
to restre using teh wal archives i had .
However one of the WAL archives appera to be 0 bytes and therefore i
cannot restore the wal archives getting the following error

FATAL:  archive file "000000010000000000000010" has wrong size: 0
instead of 16777216


list of some of the archives

-rw-------  3 postgres postgres 16777216 Jun  7 08:34
00000001000000000000000B
-rw-------  3 postgres postgres 16777216 Jun  8 03:14
00000001000000000000000C
-rw-------  3 postgres postgres 16777216 Jun  8 21:44
00000001000000000000000D
-rw-------  3 postgres postgres 16777216 Jun  9 16:24
00000001000000000000000E
-rw-------  3 postgres postgres 16777216 Jun 10 11:04
00000001000000000000000F
-rw-------  3 postgres postgres        0        Jun 10 17:38
000000010000000000000010
-rw-------  3 postgres postgres 16777216 Jun 11 11:54
000000010000000000000011
-rw-------  3 postgres postgres 16777216 Jun 12 05:51
000000010000000000000012
-rw-------  3 postgres postgres 16777216 Jun 13 01:58
000000010000000000000013
-rw-------  3 postgres postgres 16777216 Jun 13 20:38
000000010000000000000014
-rw-------  3 postgres postgres 16777216 Jun 14 15:28
000000010000000000000015
-rw-------  3 postgres postgres 16777216 Jun 15 09:58
000000010000000000000016
-rw-------  3 postgres postgres 16777216 Jun 16 04:28
000000010000000000000017
-rw-------  3 postgres postgres 16777216 Jun 16 23:28
000000010000000000000018
-rw-------  3 postgres postgres 16777216 Jun 17 18:12
000000010000000000000019

Is there a way around this?


Re: wal archive showing zero size

От
Jerry Sievers
Дата:
mail list <mailist@milidonis.com> writes:

> I have WAL archiving enabled and after a failure the other day i tried
> to restre using teh wal archives i had .
> However one of the WAL archives appera to be 0 bytes and therefore i
> cannot restore the wal archives getting the following error

Start by seeing if an identically named file is in your master's pg_xlog
directory and if so, is it the proper size?

>
> FATAL:  archive file "000000010000000000000010" has wrong size: 0
> instead of 16777216
>
>
> list of some of the archives
>
> -rw-------  3 postgres postgres 16777216 Jun  7 08:34
> 00000001000000000000000B
> -rw-------  3 postgres postgres 16777216 Jun  8 03:14
> 00000001000000000000000C
> -rw-------  3 postgres postgres 16777216 Jun  8 21:44
> 00000001000000000000000D
> -rw-------  3 postgres postgres 16777216 Jun  9 16:24
> 00000001000000000000000E
> -rw-------  3 postgres postgres 16777216 Jun 10 11:04
> 00000001000000000000000F
> -rw-------  3 postgres postgres        0        Jun 10 17:38
> 000000010000000000000010
> -rw-------  3 postgres postgres 16777216 Jun 11 11:54
> 000000010000000000000011
> -rw-------  3 postgres postgres 16777216 Jun 12 05:51
> 000000010000000000000012
> -rw-------  3 postgres postgres 16777216 Jun 13 01:58
> 000000010000000000000013
> -rw-------  3 postgres postgres 16777216 Jun 13 20:38
> 000000010000000000000014
> -rw-------  3 postgres postgres 16777216 Jun 14 15:28
> 000000010000000000000015
> -rw-------  3 postgres postgres 16777216 Jun 15 09:58
> 000000010000000000000016
> -rw-------  3 postgres postgres 16777216 Jun 16 04:28
> 000000010000000000000017
> -rw-------  3 postgres postgres 16777216 Jun 16 23:28
> 000000010000000000000018
> -rw-------  3 postgres postgres 16777216 Jun 17 18:12
> 000000010000000000000019
>
> Is there a way around this?

--
Jerry Sievers
Postgres DBA/Development Consulting
e: postgres.consulting@comcast.net
p: 312.241.7800


Re: wal archive showing zero size

От
mail list
Дата:
I no longer have pg_xlog so dont know this information .Is there a ways
to repair wal archives?


Re: wal archive showing zero size

От
Craig Ringer
Дата:
On 07/11/2014 04:44 PM, mail list wrote:
> I no longer have pg_xlog so dont know this information .Is there a ways
> to repair wal archives?

If it's zero size then there's no data there to repair. You can't create
data out of nothing.

What happened to the original pg_xlog directory you "no longer have"?

What archive_command were you using?


--
 Craig Ringer                   http://www.2ndQuadrant.com/
 PostgreSQL Development, 24x7 Support, Training & Services