Re: pg_standby stuck on a wal file size <16MB
От | Gurjeet Singh |
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Тема | Re: pg_standby stuck on a wal file size <16MB |
Дата | |
Msg-id | 65937bea0805171939r3e11985ekddd5dbdc50542483@mail.gmail.com обсуждение исходный текст |
Ответ на | Re: pg_standby stuck on a wal file size <16MB (Vlad Kosilov <vkosilov@contigo.com>) |
Список | pgsql-general |
On Sun, May 18, 2008 at 5:48 AM, Vlad Kosilov <vkosilov@contigo.com> wrote:
thats a perfectly reasonable expectation; and thats exactly how it works.
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gurjeet[.singh]@EnterpriseDB.com
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is this wrong of me to expect that postgres would not make a wal file available to archive_command unless it was completely ready to let go of that wal file?
thats a perfectly reasonable expectation; and thats exactly how it works.
Ioannis Tambouras wrote:archive_command = 'test ! -f /usr/local/wal_archive_local/%f && cp %p
/usr/local/wal_archive_local/%f'
The archive command tests if the wal segment exists and is a file, but it does not check if the file is still being written. You need to copy the file after writing has finished (it reached 16777216 bytes). I don't have sources of pg_standby near me, but I remember in the
C code checks for complete segment sizes.
thanks
Ioannis Tambouras
--________________________________________
Vladimir (Vlad) Kosilov
Senior Systems Administrator
Contigo Systems Inc.
604.683.3106 (phone)
604.648.9886 (fax)
vkosilov@contigo.com
www.contigo.com
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gurjeet[.singh]@EnterpriseDB.com
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