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Docker Cloudera image Hue login issues

Rising Star



I have just successfully run a Docker container image of Cloudera.  I can connect to the instance using Safari on the Mac.  However, I get an error message that says it can't connect:

"Could not connect to quickstart.cloudera:21050 (code THRIFTTRANSPORT): TTransportException('Could not connect to quickstart.cloudera:21050',)"


Also, when I do a check configuration it comes up with a bunch of errors:

hadoop.hdfs_clusters.default.webhdfs_url Current value: http://localhost:50070/webhdfs/v1
Failed to access filesystem root
OOZIE_EMAIL_SERVER Email notifications is disabled for Workflows and Jobs as SMTP server is localhost.
Hive Failed to access Hive warehouse: /user/hive/warehouse
HBase Browser Failed to authenticate to HBase Thrift Server, check authentication configurations.
Impala No available Impalad to send queries to.
Hadoop Security: Sentry Service Failed to connect to Sentry API (version 1).
Hadoop Security: Sentry Service

Failed to connect to Sentry API (version 2).


Anyone have a direction they can point me on how to resolve all of these issues.  I thought the Docker image would work out of the box.




Master Guru



Cool, I worked with Apple for a bit in 2005ish too. 🙂


To business, looks like it was Docker memory default to 2GB that was the cause.  I forgot that I noticed my container was sluggish so I bumped my Docker memory to 4GB.  I just prooved it by reverting to 2GB and then to 4GB as explained below:


Here is my session:




$ docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
<none>              <none>              6d2b3c820712        19 hours ago        7GB




docker run --hostname=quickstart.cloudera --privileged=true -t -i -p 8888:8888 -p 80:80 -p 7180:7180 6d2b3c820712 /usr/bin/docker-quickstart



(in container shell)

# sudo -u hdfs hdfs dfs -ls /
18/09/18 16:57:09 WARN ipc.Client: Failed to connect to server: quickstart.cloudera/ try once and fail. Connection refused
    at Method)




I log into Hue as cloudera:cloudera


Check Config shows all the failures you mentioned in your first post



start over


$ exit (in the terminal launched)


* basically, kill the running container




In Docker UI configuration, Advanced:


Set Memory to 4.0GiB


Click the Apply & Restart button





$ docker run --hostname=quickstart.cloudera --privileged=true -t -i -p 8888:8888 -p 80:80 -p 7180:7180 6d2b3c820712 /usr/bin/docker-quickstart




now everything works:


# sudo -u hdfs hdfs dfs -ls /
Found 6 items
drwxrwxrwx   - hdfs  supergroup          0 2017-10-23 23:46 /benchmarks
drwxr-xr-x   - hbase supergroup          0 2018-09-18 17:06 /hbase
drwxr-xr-x   - solr  solr                0 2017-10-23 23:48 /solr
drwxrwxrwt   - hdfs  supergroup          0 2018-09-18 17:06 /tmp
drwxr-xr-x   - hdfs  supergroup          0 2017-10-23 23:48 /user
drwxr-xr-x   - hdfs  supergroup          0 2017-10-23 23:48 /var




Hue is fine... can run queries


NOTE:  the 80 and 7180 ports aren't really necessary for exposure to host OS for this test case.


I hope this solves the issue for you too!

If so, it is pretty lame that lower memory would somehow let servers start and listen but then cause issues for networking to those listening ports.  I guess that is a welcome to docker for me 🙂

View solution in original post


Rising Star

Yeah, they sold Powerschool off to a competitor who took it way past what we had.  One of the Java engineers talked the new company into letting him re-write it in Java.

It looks pretty cool from the last time I looked at it.


I remember that group back in the day.  I still have my email address and am using 50GB of iCloud storage for the day my Mac goes down.  I bought a 2016 laptop in 2017 and absolutely love it.  All except the memory.  In which they fixed in the newest releases of MacBook Pro.  Dang company!  🙂


Dude, I got some stories of sticking with something.  I have about 33 years of Unix experience starting back in the day with Sun Microsystems servers.  I own a Sun Sparc Classic and a Sun Enterprise 250 workgroup server.  Both of them will still boot.


I wil let you know if anything pops up as I am going to do some Django development as a phase II project to manage users automatically.  I figured out how to web scrape the Hue page using the older user list URL (/useradmin/users/) that doesn't use Javascript to load the user list (/hue/useradmin/users/).  Although, Hue warns the older URL is old, it still works.  I have not figured out yet how to load the user list with the new (current) URL of "/hue/useradmin/users/" but will get back to it later.  It would be nice to have an API for Hue as Cloudera Manager has.  My project was to auto-delete Cloudera and Hue users that have left the company.  I have all the prototype functionality built and am about to bring it all together into a package.


Thanks for all your help!