| From: | Heikki Linnakangas <hlinnakangas(at)vmware(dot)com> |
|---|---|
| To: | Soroosh Sardari <soroosh(dot)sardari(at)gmail(dot)com> |
| Cc: | PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Crash recovery |
| Date: | 2013-11-05 11:48:27 |
| Message-ID: | 5278DB0B.30906@vmware.com |
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| Lists: | pgsql-hackers |
On 05.11.2013 13:21, Soroosh Sardari wrote:
> When PG crashes or the computer turned down unexpectedly, next time
> postmaster
> starts up, it does the crash recovery, actually redo xlog records, vacuum,
> etc.
>
> What module is responsible for crash recovery?
See src/backend/access/transam/xlog.c. The code to read the WAL is
there. It calls redo-routines in other modules, see e.g heap_redo for
replaying heap records, btree_redo for B-tree index records and so forth.
- Heikki
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