diff --git a/src/docbkx/troubleshooting.xml b/src/docbkx/troubleshooting.xml
index a6f34c0f402..8059755cde1 100644
--- a/src/docbkx/troubleshooting.xml
+++ b/src/docbkx/troubleshooting.xml
@@ -530,6 +530,18 @@ hadoop 17789 155 35.2 9067824 8604364 ? S<l Mar04 9855:48 /usr/java/j
See .
+
+ LeaseException when calling Scanner.next
+
+In some situations clients that fetch data from a RegionServer get a LeaseException instead of the usual
+. Usually the source of the exception is
+org.apache.hadoop.hbase.regionserver.Leases.removeLease(Leases.java:230) (line number may vary).
+It tends to happen in the context of a slow/freezing RegionServer#next call.
+It can be prevented by having hbase.rpc.timeout > hbase.regionserver.lease.period.
+Harsh J investigated the issue as part of the mailing list thread
+HBase, mail # user - Lease does not exist exceptions
+
+ Shell or client application throws lots of scary exceptions during normal operationSince 0.20.0 the default log level for org.apache.hadoop.hbase.*is DEBUG.