Add comment explaining what 0 means for io_buffer_size

facebook · Dec 27, 2024 · 9d3da28 · 9d3da28
1 parent 4bf0112
commit 9d3da28
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/include/rocksdb/utilities/backup_engine.h b/include/rocksdb/utilities/backup_engine.h
@@ -81,6 +81,8 @@ struct BackupEngineOptions {
   // Enables optimally configuring the IO size based on the storage backend.
   // If specified, takes precendence over the rate limiter burst size (if
   // specified) as well as kDefaultCopyFileBufferSize.
+  // If 0, the rate limiter burst size (if specified) or
+  // kDefaultCopyFileBufferSize will be used.
   // Default: 0
   uint64_t io_buffer_size;