[jira] [Created] (AMBARI-22456) Installing custom service hangs at install step for 15-20 mins when having to install dependencies.

["Christopher Jackson (JIRA)" <ji...@apache.org>]

Christopher Jackson created AMBARI-22456:
--------------------------------------------

             Summary: Installing custom service hangs at install step for 15-20 mins when having to install dependencies.
                 Key: AMBARI-22456
                 URL: https://issues.apache.org/jira/browse/AMBARI-22456
             Project: Ambari
          Issue Type: Bug
    Affects Versions: 2.5.0, 2.6.0
         Environment: CENTOS7, RHEL7
            Reporter: Christopher Jackson


When installing a custom service that has a client component that has several dependencies on clients of other services, for example:

```
<dependency>
  <name>HDFS/HDFS_CLIENT</name>
  <scope>host</scope>
    <auto-deploy>
      <enabled>true</enabled>
    </auto-deploy>
</dependency>
```

the installation step in the install service wizard hangs for several minutes (10-20mins) while it installs all those clients on the various nodes in the cluster. The UI reports `Preparing to install  <custom service client name>` and sits at 0% until all the dependency clients are installed. Once the dependencies are installed progress begins on installing the components of the custom service and the UI shows progress correctly. 

I would not expect this behavior. I would expect the UI to report that it is making progress installing the clients that are dependencies so that it does not appear that the installation has hung. 



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