[impala] branch master updated: [DOCS] Add HADOOP-15720 to the list of Known Issues

[arodoni]

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The following commit(s) were added to refs/heads/master by this push:
     new e316f1b  [DOCS] Add HADOOP-15720 to the list of Known Issues
e316f1b is described below

commit e316f1be3b25e460fc01704b24d8f3a3f0ed2942
Author: Alex Rodoni <arod...@cloudera.com>
AuthorDate: Wed Feb 27 11:30:40 2019 -0800

    [DOCS] Add HADOOP-15720 to the list of Known Issues
    
    Change-Id: I9497d337cb79c38add85bb0de9d07660617c76b5
    Reviewed-on: http://gerrit.cloudera.org:8080/12631
    Tested-by: Impala Public Jenkins <impala-public-jenk...@cloudera.com>
    Reviewed-by: Pooja Nilangekar <pooja.nilange...@cloudera.com>
    Reviewed-by: Michael Ho <k...@cloudera.com>
---
 docs/topics/impala_known_issues.xml | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/docs/topics/impala_known_issues.xml 
b/docs/topics/impala_known_issues.xml
index dbfc452..ec39a31 100644
--- a/docs/topics/impala_known_issues.xml
+++ b/docs/topics/impala_known_issues.xml
@@ -547,6 +547,25 @@ explain SELECT 1 FROM alltypestiny a1
       </p>
 
     </conbody>
+    <concept id="hadoop-15720">
+      <title>Queries Stuck on Failed HDFS Calls and not Timing out</title>
+      <conbody>
+        <p>If the following error appears multiple times in a short duration
+          while running a query, it would mean that the connection between the
+            <codeph>impalad</codeph> and the HDFS NameNode is in a bad state 
and
+          hence the <codeph>impalad</codeph> would have to be restarted:</p>
+        <codeblock>"hdfsOpenFile() for &lt;filename> at backend 
&lt;hostname:port> failed to finish before the &lt;hdfs_operation_timeout_sec> 
second timeout " </codeblock>
+        <p>
+          <b>Bug:</b>
+          <xref href="https://issues.apache.org/jira/browse/HADOOP-15720";
+            format="html" scope="external">HADOOP-15720</xref>
+        </p>
+        <p><b>Affected Versions:</b> All versions of Impala</p>
+        <p>
+          <b>Workaround:</b> Restart the <codeph>impalad</codeph> in the bad
+          state.</p>
+      </conbody>
+    </concept>
 
     <concept id="describe_formatted_avro">