From ee51eadda01e02ac5759ca19756f6f961c8eb0cd Mon Sep 17 00:00:00 2001
From: Surendra Singh Lilhore <surendralilhore@apache.org>
Date: Sun, 29 Dec 2019 11:15:54 +0530
Subject: [PATCH] HDFS-15074. DataNode.DataTransfer thread should catch all the
 expception and log it. Contributed by hemanthboyina.

---
 .../java/org/apache/hadoop/hdfs/server/datanode/DataNode.java   | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DataNode.java b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DataNode.java
index f3221195330..13603032c8c 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DataNode.java
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DataNode.java
@@ -2624,6 +2624,8 @@ public void run() {
         handleBadBlock(b, ie, false);
         LOG.warn("{}:Failed to transfer {} to {} got",
             bpReg, b, targets[0], ie);
+      } catch (Throwable t) {
+        LOG.error("Failed to transfer block " + b, t);
       } finally {
         decrementXmitsInProgress();
         IOUtils.closeStream(blockSender);