More understandable message during an error of ptrack backuping

Artur Zakirov · Artur Zakirov · commit 5aded200b826 · 2017-02-14T11:32:43.000+03:00
diff --git a/backup.c b/backup.c
@@ -291,10 +291,13 @@ do_backup_database(parray *backup_list, bool smooth_checkpoint)
 	{
 		XLogRecPtr ptrack_lsn = get_last_ptrack_lsn();
 		if (ptrack_lsn > prev_backup->stop_lsn)
+		{
 			elog(ERROR, "Wrong ptrack lsn:%lx prev:%lx current:%lx",
 				ptrack_lsn,
 				prev_backup->start_lsn,
 				current.start_lsn);
+			elog(ERROR, "Create new full backup before an incremental one.");
+		}
 		parray_qsort(backup_files_list, pgFileComparePathDesc);
 		make_pagemap_from_ptrack(backup_files_list);
 	}

Original file line number	Diff line number	Diff line change
`@@ -291,10 +291,13 @@ do_backup_database(parray *backup_list, bool smooth_checkpoint)`
`291`	`291`	`{`
`292`	`292`	`XLogRecPtr ptrack_lsn = get_last_ptrack_lsn();`
`293`	`293`	`if (ptrack_lsn > prev_backup->stop_lsn)`
	`294`	`+ {`
`294`	`295`	`elog(ERROR, "Wrong ptrack lsn:%lx prev:%lx current:%lx",`
`295`	`296`	`ptrack_lsn,`
`296`	`297`	`prev_backup->start_lsn,`
`297`	`298`	`current.start_lsn);`
	`299`	`+ elog(ERROR, "Create new full backup before an incremental one.");`
	`300`	`+ }`
`298`	`301`	`parray_qsort(backup_files_list, pgFileComparePathDesc);`
`299`	`302`	`make_pagemap_from_ptrack(backup_files_list);`
`300`	`303`	`}`