disk layer gc and error/warnings cleanup (#515)

- Improvement: Use GC reserve when writing index/manifest for a disk cache bucket when disk is low when available
- Improvement: Demote errors to warning for issues that are not critical and we handle gracefully
- Improvement: Treat more out of memory errors from windows as Out Of Memory errors

Fixed wrong sizeof() statement for compactcas index (luckily the two structs are of same size)

1 files changed, 1 insertions, 1 deletions

diff --git a/src/zenhttp/auth/authmgr.cpp b/src/zenhttp/auth/authmgr.cpp
index e84f63a3f..18568a21d 100644
--- a/src/zenhttp/auth/authmgr.cpp
+++ b/src/zenhttp/auth/authmgr.cpp
@@ -369,7 +369,7 @@ private:
 		}
 		catch (std::exception& Err)
 		{
-			ZEN_ERROR("serialize state FAILED, reason '{}'", Err.what());
+			ZEN_WARN("serialize state FAILED, reason '{}'", Err.what());
 		}
 	}