From 7bf4b38da53b1b8acfabde95617e7e15f9db3655 Mon Sep 17 00:00:00 2001
From: Sean Busbey <busbey@apache.org>
Date: Mon, 9 Feb 2015 16:30:05 -0600
Subject: [PATCH] HBASE-12997 print wal pipeline on low replication.

---
 .../java/org/apache/hadoop/hbase/regionserver/wal/FSHLog.java  | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/FSHLog.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/FSHLog.java
index 4e1311c4f1a..6eb62d15296 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/FSHLog.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/FSHLog.java
@@ -1400,7 +1400,8 @@ public class FSHLog implements WAL {
             LOG.warn("HDFS pipeline error detected. " + "Found "
                 + numCurrentReplicas + " replicas but expecting no less than "
                 + this.minTolerableReplication + " replicas. "
-                + " Requesting close of wal.");
+                + " Requesting close of wal. current pipeline: "
+                + Arrays.toString(getPipeLine()));
             logRollNeeded = true;
             // If rollWriter is requested, increase consecutiveLogRolls. Once it
             // is larger than lowReplicationRollLimit, disable the