| From: | Michael Paquier <michael(dot)paquier(at)gmail(dot)com> |
|---|---|
| To: | Hung Phan <hungphan227(at)gmail(dot)com> |
| Cc: | PostgreSQL mailing lists <pgsql-general(at)postgresql(dot)org> |
| Subject: | Re: pg_rewind copy so much data |
| Date: | 2017-09-29 09:24:57 |
| Message-ID: | CAB7nPqS1Lu9Cpf2RkogeTpFMKzcqgGLLK8i+-dtARC47MYr6tA@mail.gmail.com |
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| Lists: | pgsql-general |
On Fri, Sep 29, 2017 at 6:22 PM, Hung Phan <hungphan227(at)gmail(dot)com> wrote:
> Thanks for your help. Do you have any more ideas about my case? I cannot
> find any reason for that. If pg_rewind just examines WAL for changed blocks
> from the common checkpoint, why did it copy all data ? As I understand, the
> information in WAL about changes cannot cover all data in the database.
The only thing I have in mind able to create this much amount of data
using this less WAL is a CREATE DATABASE using as template an existing
database. Based on the information you are giving here this is the
best guess I can do.
--
Michael
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