db/pg_probackup
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Code Issues Releases Activity

ptrack minor optimization

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This commit is contained in:
Grigory Smolkin 2017-12-08 16:22:06 +03:00
parent dc6b127a25
commit 61d57b63db
1 changed files with 16 additions and 8 deletions
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24
src/backup.c
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@ -511,6 +511,22 @@ do_backup_instance(void)
pgBackupWriteBackupControlFile(&current);
}
/*
* It`s illegal to take PTRACK backup if LSN from ptrack_control() is not equal to
* start_backup LSN of previous backup
*/
if (current.backup_mode == BACKUP_MODE_DIFF_PTRACK)
{
XLogRecPtr ptrack_lsn = get_last_ptrack_lsn();
if (ptrack_lsn > prev_backup->stop_lsn || ptrack_lsn == InvalidXLogRecPtr)
{
elog(ERROR, "LSN from ptrack_control %lx differs from STOP LSN of previous backup %lx.\n"
"Create new full backup before an incremental one.",
ptrack_lsn, prev_backup->stop_lsn);
}
}
/* Clear ptrack files for FULL and PAGE backup */
if (current.backup_mode != BACKUP_MODE_DIFF_PTRACK && is_ptrack_enable)
pg_ptrack_clear();
@ -580,14 +596,6 @@ do_backup_instance(void)
if (current.backup_mode == BACKUP_MODE_DIFF_PTRACK)
{
XLogRecPtr ptrack_lsn = get_last_ptrack_lsn();
if (ptrack_lsn > prev_backup->stop_lsn || ptrack_lsn == InvalidXLogRecPtr)
{
elog(ERROR, "LSN from ptrack_control %lx differs from STOP LSN of previous backup %lx.\n"
"Create new full backup before an incremental one.",
ptrack_lsn, prev_backup->stop_lsn);
}
parray_qsort(backup_files_list, pgFileComparePath);
make_pagemap_from_ptrack(backup_files_list);
}