Disable internal logging and enable the logrotate.conf from the xen package.
This allows larger xend.log files

---
 tools/python/xen/xend/XendLogging.py |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: xen-4.1.2-testing/tools/python/xen/xend/XendLogging.py
===================================================================
--- xen-4.1.2-testing.orig/tools/python/xen/xend/XendLogging.py
+++ xen-4.1.2-testing/tools/python/xen/xend/XendLogging.py
@@ -76,7 +76,7 @@ if 'TRACE' not in logging.__dict__:
 log = logging.getLogger("xend")
 
 
-MAX_BYTES = 1 << 20  # 1MB
+MAX_BYTES = 0
 BACKUP_COUNT = 5
 
 STDERR_FORMAT = "[%(name)s] %(levelname)s (%(module)s:%(lineno)d) %(message)s"