On Tue, 26 Jun 2018 20:19:42 +0900 (Tokyo Standard Time)
Kyotaro HORIGUCHI <[email protected]> wrote:
> Hello.
>
> Good catch!
>
> At Tue, 26 Jun 2018 17:47:52 +0900, Yugo Nagata <[email protected]> wrote
> in <[email protected]>
> > Hi,
> >
> > While looking into the backup and recovery code, I found small
> > documentation bugs.
> > The documatation says that the backup history files can be requested for
> > recovery,
> > but it's not used by the system and not requested anymore since PG 9.0
> > (commit 06f82b29616cd9effcaefd99c6b6e2e80697482f) and never be requested.
> >
> > Attached patch (doc_backup_history_file.patch) corrects the description
> > about this.
> >
> > In addition, the current pg_standby still can handle a backup history file
> > that are
> > never requested. It is harmless but unnecessary code. Another attached patch
> > (pg_standby.patch) removes this part of code.
>
> The comment fix seems fine and they seem to be all occurances of
> the word ".backup" in the context of recovery_command.
>
> The definition of the symbol XLOG_BACKUP_LABEL is no longer
> useful after your patch applied. Removing the symbol makes
> XLOG_DATA and the variable nextWALFileName useless and finally we
> can remove all branching using it.
Thank you for your reviewing my patch.
I've also removed XLOG_BACKUP_LABEL, but I left nextWALFileName
since this is still referred in CustomizableCleanupPriorWALFiles().
Attached is the updated patch.
Regards,
>
> regards.
>
> --
> Kyotaro Horiguchi
> NTT Open Source Software Center
>
>
--
Yugo Nagata <[email protected]>
diff --git a/contrib/pg_standby/pg_standby.c b/contrib/pg_standby/pg_standby.c
index cb78597..b37cf6d 100644
--- a/contrib/pg_standby/pg_standby.c
+++ b/contrib/pg_standby/pg_standby.c
@@ -94,7 +94,6 @@ int restoreCommandType;
#define XLOG_DATA 0
#define XLOG_HISTORY 1
-#define XLOG_BACKUP_LABEL 2
int nextWALFileType;
#define SET_RESTORE_COMMAND(cmd, arg1, arg2) \
@@ -211,15 +210,9 @@ CustomizableNextWALFileReady(void)
}
/*
- * If it's a backup file, return immediately. If it's a regular file
* return only if it's the right size already.
*/
- if (IsBackupHistoryFileName(nextWALFileName))
- {
- nextWALFileType = XLOG_BACKUP_LABEL;
- return true;
- }
- else if (WalSegSz > 0 && stat_buf.st_size == WalSegSz)
+ if (WalSegSz > 0 && stat_buf.st_size == WalSegSz)
{
#ifdef WIN32
