From 0e3362fd4bc60f40f20c4daadec8cf330dc89352 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Wed, 12 Mar 2014 09:10:40 +0530
Subject: [PATCH] Library backup: Avoid infinite retries if converting metadata
 to backup OPF for a book fails. Simply fail to backup the metadata for that
 book. Fixes #1291142 [Memory Error/ Failed to convert to opf for
 id:](https://bugs.launchpad.net/calibre/+bug/1291142)

---
 src/calibre/db/backup.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/calibre/db/backup.py b/src/calibre/db/backup.py
index f0f2b07a54..9dfda156d4 100644
--- a/src/calibre/db/backup.py
+++ b/src/calibre/db/backup.py
@@ -93,6 +93,7 @@ class MetadataBackup(Thread):
         except:
             prints('Failed to convert to opf for id:', book_id)
             traceback.print_exc()
+            self.db.clear_dirtied(book_id, sequence)
             return
 
         self.wait(self.scheduling_interval)