# Elasticsearch and CDH 5.4 Installation
**URL:** https://discuss.elastic.co/t/elasticsearch-and-cdh-5-4-installation/35084
**Category:** Elasticsearch
**Tags:** es-hadoop
**Created:** [November 19, 2015, 8:36pm UTC](https://discuss.elastic.co/t/elasticsearch-and-cdh-5-4-installation/35084 "2015-11-19T20:36:50Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@anantraman](https://discuss.elastic.co/u/anantraman)
#### Post date: [November 19, 2015, 8:36pm UTC](https://discuss.elastic.co/t/elasticsearch-and-cdh-5-4-installation/35084/1 "2015-11-19T20:36:50Z")
I have a 1 node (Psuedo Cluster) CDH 5.4 with the latest version of the ES. I have downloaded the es-hadoop as well. What do I need to do to link ES and es-hadoop? I don't understand the installation instructions at the github. Thanks!
---
### Author:  [@costin](https://discuss.elastic.co/u/costin)
#### Post date: [November 23, 2015, 9:48pm UTC](https://discuss.elastic.co/t/elasticsearch-and-cdh-5-4-installation/35084/2 "2015-11-23T21:48:05Z")
The maybe the [reference documentation](https://www.elastic.co/guide/en/elasticsearch/hadoop/current/index.html), linked in the `README` will help.
---
### Author:  [@anantraman](https://discuss.elastic.co/u/anantraman)
#### Post date: [December 14, 2015, 7:34pm UTC](https://discuss.elastic.co/t/elasticsearch-and-cdh-5-4-installation/35084/3 "2015-12-14T19:34:25Z")
Here is my first attempt at a Map Reduce with Input in ES and Output in HDFS.
HADOOP\_CLASSPATH=/home/anant/Documents/jarfiles:/opt/esh/dist/
```
conf.set("es.nodes",":9200");
conf.set("es.resource",args[0]);
job.setInputFormatClass(EsInputFormat.class);
```
hadoop jar mrinpes.jar MRInpES temperature/logs output -libjars elasticsearch-hadoop-mr-2.1.2.jar
mrinpes.jar is in the 1st directory and elastic-hadoop jars are in the 2nd directory of the HADOOP\_CLASSPATH
I still get the error: Exception in thread "main" java.lang.NoClassDefFoundError: org/elasticsearch/hadoop/mr/EsInputFormat
Searching the elasticsearch jar file...The class file is there...
[anant@psvc01nodecdh4 jarfiles]$ jar tvf /opt/esh/dist/elasticsearch-hadoop-mr-2.1.2.jar | grep "EsInputFormat"
2068 Thu Oct 29 17:47:36 MST 2015 org/elasticsearch/hadoop/mr/EsInputFormat$AbstractWritableShardRecordReader.class
1867 Thu Oct 29 17:47:36 MST 2015 org/elasticsearch/hadoop/mr/EsInputFormat$JsonWritableShardRecordReader.class
3676 Thu Oct 29 17:47:36 MST 2015 org/elasticsearch/hadoop/mr/EsInputFormat$ShardInputSplit.class
9248 Thu Oct 29 17:47:36 MST 2015 org/elasticsearch/hadoop/mr/EsInputFormat$ShardRecordReader.class
3336 Thu Oct 29 17:47:36 MST 2015 org/elasticsearch/hadoop/mr/EsInputFormat$WritableShardRecordReader.class
7199 Thu Oct 29 17:47:36 MST 2015 org/elasticsearch/hadoop/mr/EsInputFormat.class
The Hadoop version:
[anant@psvc01nodecdh4 jarfiles]$ hadoop version
Hadoop 2.6.0-cdh5.4.5
Subversion [http://github.com/cloudera/hadoop](http://github.com/cloudera/hadoop) -r ab14c89fe25e9fb3f9de4fb852c21365b7c5608b
Compiled by jenkins on 2015-08-12T21:12Z
Compiled with protoc 2.5.0
From source with checksum d31cb7e46b8602edaf68d335b785ab
This command was run using /usr/lib/hadoop/hadoop-common-2.6.0-cdh5.4.5.jar
Can anyone help me with this issue? What am I missing?
Thanks,
Anant
---
### Author:  [@costin](https://discuss.elastic.co/u/costin)
#### Post date: [December 18, 2015, 1:18pm UTC](https://discuss.elastic.co/t/elasticsearch-and-cdh-5-4-installation/35084/5 "2015-12-18T13:18:08Z")
You have not setup the classpath properly. `HADOOP_CLASSPATH` doesn't really work since many times it is computed automatically by the Hadoop scripts and thus it might be overwritten.
Do not that `libjars` only works if your code uses `GenericToolOptions` and `Tools` - if not, it's better to simply embed the jar within your own and thus not have to worry about it.
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 6, 2017, 1:26pm UTC](https://discuss.elastic.co/t/elasticsearch-and-cdh-5-4-installation/35084/6 "2017-07-06T13:26:49Z")