Changeset: 98b4d539f5e3 for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB/rev/98b4d539f5e3
Modified Files:
gdk/gdk_logger.c
Branch: Dec2023
Log Message:
No point rotating WAL if file only 2 bytes (just endian marker).
diffs (27 lines):
diff --git a/gdk/gdk_logger.c b/gdk/gdk_logger.c
--- a/gdk/gdk_logger.c
+++ b/gdk/gdk_logger.c
@@ -804,6 +804,10 @@ la_bat_create(logger *lg, logaction *la,
/* formerly head column type, should be void */
if ((b = COLnew(0, la->tt, BATSIZE, PERSISTENT)) == NULL)
return GDK_FAIL;
+ /* file size of 2 means only endian indicator present
+ * (i.e. effectively empty) */
+ if (current_file_size <= 2)
+ return GDK_SUCCEED;
if (la->tt < 0)
BATtseqbase(b, 0);
@@ -2518,6 +2522,12 @@ log_activate(logger *lg)
rotation_unlock(lg);
return GDK_FAIL;
}
+ /* file size of 2 means only endian indicator present
+ * (i.e. effectively empty) */
+ if (current_file_size <= 2) {
+ rotation_unlock(lg);
+ return GDK_SUCCEED;
+ }
if (!lg->flushnow &&
!lg->current->next &&
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