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Date: Thu, 15 Oct 2015 10:52:51 -0700
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 <CACkSZy15xwDk-x=j1e4Fk==k5Cv-K=cbSX8Vusr71n9kkC8aCg@mail.gmail.com>
Subject: Host substitution not happening within blueprint
From: Stephen Boesch <javadba@gmail.com>
To: user@ambari.apache.org
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Summary: the HOST_GROUP .. <group_name> is not being substituted within the
blueprint. I am wondering why and what the correct process would be.


Details:

We see the following template substitution error (i.e. it is not performed)
in NameNode logs - which shows the blueprints are not setup/working
correctly:

2015-10-13 17:58:49,101 INFO  namenode.NameNode
(NameNode.java:setClientNamenodeAddress(397)) - fs.defaultFS is
*hdfs://%HOSTGROUP::nn_1%:8020*
2015-10-13 17:58:49,103 ERROR namenode.NameNode (NameNode.java:main(1571))
- Failed to start namenode.
java.lang.IllegalArgumentException: Malformed escape pair at index 7:
hdfs://%HOSTGROUP::nn_1%:8020


Here is the first portion of our blueprints:


{

  "configurations" : [

    {

      "core-site" : {

        "properties_attributes" : {

          "final" : {

            "fs.defaultFS" : "true",

             "ha.zookeeper.quorum" :
"%HOSTGROUP::slave_zkfc%:2181,%HOSTGROUP::slave_zk%:2181"

          }

        },

        "properties" : {

          "fs.defaultFS" : *"hdfs://%HOSTGROUP::nn_1%:8020",*

          "fs.trash.interval" : "360",


Here is the  hostgroup called nn_1

  "host_groups" : [

    {

      "name" : "nn_1",

      "configurations" : [ ],

      "components" : [

        {

          "name" : "NAMENODE"

        },

        {

          "name" : "HDFS_CLIENT"

        },

 .. etc

      ],

      "cardinality" : "1"

    },

So why is the substitution not occurring? Thx!

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<div dir=3D"ltr"><div>Summary: the HOST_GROUP .. &lt;group_name&gt; is not =
being substituted within the blueprint. I am wondering why and what the cor=
rect process would be.</div><div><br></div><div><br></div><div>Details:</di=
v><div><br></div><div>We see the following template substitution error (i.e=
. it is not performed) in NameNode logs - which shows the blueprints are no=
t setup/working correctly:</div><div><div><p>2015-10-13 17:58:49,101 INFO =
=C2=A0namenode.NameNode (NameNode.java:setClientNamenodeAddress(397)) - fs.=
defaultFS is <b>hdfs://%HOSTGROUP::nn_1%:8020</b><br></p></div><div>2015-10=
-13 17:58:49,103 ERROR namenode.NameNode (NameNode.java:main(1571)) - Faile=
d to start namenode.</div><div>java.lang.IllegalArgumentException: Malforme=
d escape pair at index 7: hdfs://%HOSTGROUP::nn_1%:8020</div></div><div><br=
></div><div><br></div><div><br></div><div>Here is the first portion of our =
blueprints:<br></div><div>
<p><span></span><br></p>
<p><span>{</span></p>
<p><span>=C2=A0 &quot;configurations&quot; : [</span></p>
<p><span>=C2=A0 =C2=A0 {</span></p>
<p><span>=C2=A0 =C2=A0 =C2=A0 &quot;core-site&quot; : {</span></p>
<p><span>=C2=A0 =C2=A0 =C2=A0 =C2=A0 &quot;properties_attributes&quot; : {<=
/span></p>
<p><span>=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 &quot;final&quot; : {</span></p=
>
<p><span>=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 &quot;fs.defaultFS&quot;=
 : &quot;true&quot;,</span></p>
<p><span>=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0&quot;ha.zookeeper=
.quorum&quot; : &quot;%HOSTGROUP::slave_zkfc%:2181,%HOSTGROUP::slave_zk%:21=
81&quot;</span></p>
<p><span>=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 }</span></p>
<p><span>=C2=A0 =C2=A0 =C2=A0 =C2=A0 },</span></p>
<p><span>=C2=A0 =C2=A0 =C2=A0 =C2=A0 &quot;properties&quot; : {</span></p>
<p><span>=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 &quot;fs.defaultFS&quot; : <b>&=
quot;hdfs://%HOSTGROUP::nn_1%:8020&quot;,</b></span></p>
<p><span>=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 &quot;fs.trash.interval&quot; :=
 &quot;360&quot;,</span></p>
<p><span></span><br></p><p>Here is the =C2=A0hostgroup called nn_1</p><p>=
=C2=A0 &quot;host_groups&quot; : [<br></p><p>=C2=A0 =C2=A0 {</p><p>=C2=A0 =
=C2=A0 =C2=A0 &quot;name&quot; : &quot;nn_1&quot;,</p><p>=C2=A0 =C2=A0 =C2=
=A0 &quot;configurations&quot; : [ ],</p><p>=C2=A0 =C2=A0 =C2=A0 &quot;comp=
onents&quot; : [</p><p>=C2=A0 =C2=A0 =C2=A0 =C2=A0 {</p><p>=C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0 &quot;name&quot; : &quot;NAMENODE&quot;</p><p>=C2=A0 =
=C2=A0 =C2=A0 =C2=A0 },</p><p>=C2=A0 =C2=A0 =C2=A0 =C2=A0 {</p><p>=C2=A0 =
=C2=A0 =C2=A0 =C2=A0 =C2=A0 &quot;name&quot; : &quot;HDFS_CLIENT&quot;</p><=
p>=C2=A0 =C2=A0 =C2=A0 =C2=A0 },</p><p>=C2=A0.. etc</p><p>=C2=A0=C2=A0 =C2=
=A0 =C2=A0],<br></p><p>=C2=A0 =C2=A0 =C2=A0 &quot;cardinality&quot; : &quot=
;1&quot;</p><p>=C2=A0 =C2=A0 },</p><div><br></div>
<p><span></span>So why is the substitution not occurring? Thx!</p></div></d=
iv>

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