HDFS-10627. Volume Scanner marks a block as "suspect" even if the exception is network-related. Contributed by Rushabh S Shah.

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/BlockSender.java

@@ -622,11 +622,11 @@ class BlockSender implements java.io.Closeable {
         String ioem = e.getMessage();
         if (!ioem.startsWith("Broken pipe") && !ioem.startsWith("Connection reset")) {
           LOG.error("BlockSender.sendChunks() exception: ", e);
-        }
           datanode.getBlockScanner().markSuspectBlock(
               volumeRef.getVolume().getStorageID(),
               block);
         }
+      }
       throw ioeToSocketException(e);
     }