I had exact same problem.   So I issued this command: opt/cloudera/parcels/CDH/lib/hue/tools/app_reg/app_reg.py --install /opt/cloudera/parcels/CDH/lib/hue/apps/impala   Now I when I go to localhost:8888, I get this: Traceback (most recent call last): File "/opt/cloudera/parcels/CDH-5.11.1-1.cdh5.11.1.p0.4/lib/hue/desktop/core/src/desktop/lib/wsgiserver.py", line 1215, in communicate req.respond() File "/opt/cloudera/parcels/CDH-5.11.1-1.cdh5.11.1.p0.4/lib/hue/desktop/core/src/desktop/lib/wsgiserver.py", line 576, in respond self._respond() File "/opt/cloudera/parcels/CDH-5.11.1-1.cdh5.11.1.p0.4/lib/hue/desktop/core/src/desktop/lib/wsgiserver.py", line 588, in _respond response = self.wsgi_app(self.environ, self.start_response) File "/opt/cloudera/parcels/CDH-5.11.1-1.cdh5.11.1.p0.4/lib/hue/build/env/lib/python2.7/site-packages/Django-1.6.10-py2.7.egg/django/core/handlers/wsgi.py", line 187, in __call__ self.load_middleware() File "/opt/cloudera/parcels/CDH-5.11.1-1.cdh5.11.1.p0.4/lib/hue/build/env/lib/python2.7/site-packages/Django-1.6.10-py2.7.egg/django/core/handlers/base.py", line 45, in load_middleware mw_class = import_by_path(middleware_path) File "/opt/cloudera/parcels/CDH-5.11.1-1.cdh5.11.1.p0.4/lib/hue/build/env/lib/python2.7/site-packages/Django-1.6.10-py2.7.egg/django/utils/module_loading.py", line 26, in import_by_path sys.exc_info()[2]) File "/opt/cloudera/parcels/CDH-5.11.1-1.cdh5.11.1.p0.4/lib/hue/build/env/lib/python2.7/site-packages/Django-1.6.10-py2.7.egg/django/utils/module_loading.py", line 21, in import_by_path module = import_module(module_path) File "/opt/cloudera/parcels/CDH-5.11.1-1.cdh5.11.1.p0.4/lib/hue/build/env/lib/python2.7/site-packages/Django-1.6.10-py2.7.egg/django/utils/importlib.py", line 40, in import_module __import__(name) File "/opt/cloudera/parcels/CDH-5.11.1-1.cdh5.11.1.p0.4/lib/hue/desktop/core/src/desktop/middleware.py", line 45, in <module> import desktop.views File "/opt/cloudera/parcels/CDH-5.11.1-1.cdh5.11.1.p0.4/lib/hue/desktop/core/src/desktop/views.py", line 49, in <module> from desktop.converters import DocumentConverter File "/opt/cloudera/parcels/CDH-5.11.1-1.cdh5.11.1.p0.4/lib/hue/desktop/core/src/desktop/converters.py", line 27, in <module> from notebook.api import _historify File "/opt/cloudera/parcels/CDH-5.11.1-1.cdh5.11.1.p0.4/lib/hue/desktop/libs/notebook/src/notebook/api.py", line 35, in <module> from notebook.views import upgrade_session_properties File "/opt/cloudera/parcels/CDH-5.11.1-1.cdh5.11.1.p0.4/lib/hue/desktop/libs/notebook/src/notebook/views.py", line 38, in <module> from notebook.management.commands.notebook_setup import Command File "/opt/cloudera/parcels/CDH-5.11.1-1.cdh5.11.1.p0.4/lib/hue/desktop/libs/notebook/src/notebook/management/commands/notebook_setup.py", line 27, in <module> from useradmin.models import get_default_user_group, install_sample_user ImproperlyConfigured: Error importing module desktop.middleware: "No module named useradmin.models"   ... View more

You mentioned that you still need to fix the 'Under-Replicated Blocks'.   This is what I found with google to fix:   $ su - <$hdfs_user>  $ hdfs fsck / | grep 'Under replicated' | awk -F':' '{print $1}' >> /tmp/under_replicated_files $ for hdfsfile in `cat /tmp/under_replicated_files`; do echo "Fixing $hdfsfile :" ; hadoop fs -setrep 3 $hdfsfile; done   ... View more

Thank you @GautamG I wasn't aware of that until you clearly stated that.   ... View more

The link you provided (https://www.cloudera.com/downloads/manager/5-11-1.html) says "RHEL / CentOS / OEL 7.0 is not supported".   Bu in the same page, it says "7.3, 7.2, 7.1, 6.8, 6.7, 6.6, 6.5, 6.4, 5.11, 5.10, 5.7" supported.   I'm using 7.3: $ cat /etc/centos-release CentOS Linux release 7.3.1611 (Core) Kernel version: $ uname -r 3.10.0-514.21.2.el7.x86_64 The bug you mentionel is about Impala 2.7 which is not available for Cloudera Manager. The latest Impala parcel for Cloudera Manager is 2.1 currently.   If Impala is not supported on CentOS 7, I would expect it to be clearly stated on https://www.cloudera.com/downloads/manager/5-11-1.html ... View more

I have installed Cloudera Manager 5.11 on CentOS7. Unfortunately on Parcels page, it says: Impala is not supported on RHEL 7. That's the whole reason I fallback to CenOS 6.   Also when I check Impala Parcels on http://archive.cloudera.com/impala/parcels/latest/ I see there is no EL7 parcel. Here is the complete list of Impala parcels:   IMPALA-2.1.0-1.impala2.0.0.p0.1995-el5.parcel IMPALA-2.1.0-1.impala2.0.0.p0.1995-el6.parcel IMPALA-2.1.0-1.impala2.0.0.p0.1995-lucid.parcel IMPALA-2.1.0-1.impala2.0.0.p0.1995-precise.parcel IMPALA-2.1.0-1.impala2.0.0.p0.1995-sles11.parcel IMPALA-2.1.0-1.impala2.0.0.p0.1995-squeeze.parcel     ... View more

I am having same problem here. I used to install Cloudera Manager on Centos 7 with no issues. But in Centos 6(since impala is not supported on Centos 7, had to try Centos 6), getting this error on all hosts.  My /etc/sysconfig/network file is like this:   $ cat /etc/sysconfig/network NETWORKING=yes HOSTNAME=cixa.c.gib-data.internal I rebooted all hosts after setting HOSTNAME in /etc/sysconfig/network file. All other nodes share same configuration.  Host inspection gives no warning.   In host status, this error message is shown: "The hostname and canonical name for this host are not consistent when checked from a Java process"   $ python -c "import socket; print socket.getfqdn(); print socket.gethostbyname(socket.getfqdn())" cixa.c.gib-data.internal 10.128.0.2 All hosts answer correctly to nslookup and host commands. All hosts can shh and ping to all others with FQDN. ... View more