Known Issues and Workarounds in Cloudera Navigator Encrypt

Navigator Encrypt progress bar random display anomaly

When running the navencrypt-move command, the graphic display of progress randomly breaks. This display anomaly does not impact the move operation and there is no data loss. This is a graphic display issue only, and is not related to the move command operation being performed.

When the display issue occurs, it appears as follows:

Moving from: '/local/mnt/navencrypt/mount/mysql/local/mnt/mis/mysql/2net_kernel'
Moving to: '/local/mnt/mis/mysql/2net_kernel'
100% [====/usr/sbin/navencrypt-move: line 462: printf: write error: Interrupted system call
100% [=======================================================>] [ 72.06 GB]

Workaround: None.

The navencrypt status --integrity command does not detect loop devices properly

Running the navencrypt status --integrity command on a system using a loop device incorrectly reports that the backing file does not exist.

Workaround: None.

Navigator Encrypt 3.12 and earlier does not support specific kernels

Versions of Navigator Encrypt 3.12 and earlier do not support the following kernels:

  • 3.10.0-514.2.2.el7.x86_64
  • 3.10.0-514.16.1.el7.x86_64
  • 3.10.0-514.10.2.el7.x86_64

Note that this is not specific to a particular platform; rather, it is specific only to the kernels listed here.

Workaround: Use a kernel other than those listed here.

The Navigator Encrypt kernel module does not build on Ubuntu 14.04.04

The Navigator Encrypt kernel module does not build on Ubuntu 14.04.04 (kernel version 4.2).

Workaround: None.

Using screen utility with Cloudera Navigator Encrypt does not work

Running Cloudera Navigator Encrypt commands within the Linux screen utility does not work correctly.

Workaround: None.

The navencrypt exec command does not work

Using navencrypt exec to run a single command without having a matching ACL rule does not work.

Workaround: Add a temporary ACL rule to allow the command you want to use.

Sophos antivirus is not compatible with Cloudera Navigator Encrypt

Kernel panics have been observed on machines running both Sophos antivirus and Cloudera Navigator Encrypt.

Workaround: None. Do not use Sophos antivirus in conjunction with Cloudera Navigator Encrypt.

Cloudera Navigator Encrypt crashes in Docker container

Cloudera Navigator Encrypt crashes when run in a Docker container.

Workaround: None. Do not use Cloudera Navigator Encrypt with Docker.