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What is Tomcat used for in CDH-5.14?

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Hi,

 

We found Tomcat in CDH5.14 parcels below.

 

/opt/cloudera/parcels/CDH-5.14.2-1.cdh5.14.2.p0.3/jars/catalina.jar

We extract the jar and saw a Tomcat version.

 

$ jar xvf /opt/cloudera/parcels/CDH-5.14.2-1.cdh5.14.2.p0.3/jars/catalina.jar
$ cat META-INF/MANIFEST.MF
Manifest-Version: 1.0
Ant-Version: Apache Ant 1.8.2
Created-By: 1.7.0_75-b13 (Oracle Corporation)
Specification-Title: Apache Tomcat
Specification-Version: 6.0
Specification-Vendor: Apache Software Foundation
Implementation-Title: Apache Tomcat
Implementation-Version: 6.0.53
Implementation-Vendor: Apache Software Foundation
X-Compile-Source-JDK: 1.5
X-Compile-Target-JDK: 1.5

Regarding Tomcat, We have three questions below.

 

  1. Is the Tomcat version (in CDH5.14) 6.053 ?
  2. What is the Tomcat used for ?
  3. Dose the Tomcat always run during cluster runnning ?

 

Regards,

tmks0820

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