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[Issue #187] Do not wait for WAL segment, previous to WAL segment with START LSN, when running backup in archive mode

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This commit is contained in:
Grigory Smolkin 2020-03-20 21:40:40 +03:00
parent ffdf86d248
commit 803c607b46
1 changed files with 8 additions and 11 deletions
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19
src/backup.c
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@ -1093,7 +1093,7 @@ pg_start_backup(const char *label, bool smooth, pgBackup *backup,
PQclear(res);
if (current.backup_mode == BACKUP_MODE_DIFF_PAGE &&
if ((!stream_wal || current.backup_mode == BACKUP_MODE_DIFF_PAGE) &&
!backup->from_replica &&
!(nodeInfo->server_version < 90600 &&
!nodeInfo->is_superuser))
@ -1105,17 +1105,14 @@ pg_start_backup(const char *label, bool smooth, pgBackup *backup,
*/
pg_switch_wal(conn);
if (current.backup_mode == BACKUP_MODE_DIFF_PAGE)
/* In PAGE mode wait for current segment... */
/* In PAGE mode or in ARCHIVE wal-mode wait for current segment */
if (current.backup_mode == BACKUP_MODE_DIFF_PAGE ||!stream_wal)
/*
* Do not wait start_lsn for stream backup.
* Because WAL streaming will start after pg_start_backup() in stream
* mode.
*/
wait_wal_lsn(backup->start_lsn, true, backup->tli, false, true, ERROR, false);
/*
* Do not wait start_lsn for stream backup.
* Because WAL streaming will start after pg_start_backup() in stream
* mode.
*/
else if (!stream_wal)
/* ...for others wait for previous segment */
wait_wal_lsn(backup->start_lsn, true, backup->tli, true, true, ERROR, false);
}
/*