[#2308] improvement(server): More detailed and clear logs on reading …

…failure for FileSegmentManagedBuffer (#2309)

### What changes were proposed in this pull request?

More detailed and clear logs on reading failure for FileSegmentManagedBuffer

### Why are the changes needed?

for #2308 

### Does this PR introduce _any_ user-facing change?

No.

### How was this patch tested?

Needn't

Co-authored-by: Junfan Zhang <[email protected]>

common/src/main/java/org/apache/uniffle/common/netty/buffer/FileSegmentManagedBuffer.java

@@ -74,11 +74,15 @@ public ByteBuffer nioByteBuffer() {
       buf.flip();
       return buf;
     } catch (IOException e) {
-      String errorMessage = "Error in reading " + this;
+      String fileName = file.getAbsolutePath();
+      String errorMessage =
+          String.format(
+              "Errors on reading localfile data with offset[%s] length[%s] from [%s]. ",
+              offset, length, fileName);
       try {
         if (channel != null) {
           long size = channel.size();
-          errorMessage = "Error in reading " + this + " (actual file length " + size + ")";
+          errorMessage += String.format("The actual file length: %s", size);
         }
       } catch (IOException ignored) {
         // ignore
@@ -107,7 +111,7 @@ public Object convertToNetty() {
     try {
       fileChannel = FileChannel.open(file.toPath(), StandardOpenOption.READ);
     } catch (IOException e) {
-      throw new RssException("Error in reading " + file);
+      throw new RssException("Errors on reading " + file.getAbsolutePath(), e);
     }
     return new DefaultFileRegion(fileChannel, offset, length);
   }