Known Issues and Workarounds in Cloudera Navigator Key Trustee Server

Incorrect status for "Restart stale services" step in HDFS encryption wizard post-service installation

There are times when completion of the HDFS Encryption Wizard does not show an active "Restart stale services and redeploy client configuration" link.

Workaround: Refresh the page and the link should become active.

The encryption wizard continues to fail if there is a failure during initial configuration run

The encryption wizard continues to fail if there was a failure during the initial run configuring HSM KMS.

Workaround: Open Cloudera Manager in another browser tab, and manually stop the installed KMS by clicking the arrow next to the KMS and selecting Stop. Then retry the installation in the new tab after correcting the cause of the install failure.

Before installing the Thales backed HSM KMS, you must add the KMS user to the nfast group

After installation of the Thales HSM client, and before installing Navigator HSM KMS backed by Thales HSM, you must add the KMS user to the nfast group..

Workaround: Run the following command to manually add the KMS user to the nfast group:usermod -a -G nfast kms

Navigator Key HSM may become unresponsive when there are network delays or connection issues with the HSM

This issue manifests itself as job failures within CDH. To verify that this issue is the source of the failed CDH jobs and that Key HSM has become unresponsive log into the Key HSM server and look at the log file in /var/log/keyhsm/. If no new entries are being written to the log file while key requests are being made, e.g. CDH jobs continue to retry, then follow the directions in the Workaround section.

Workaround: If threads accumulate and Navigator Key HSM has become unresponsive then restart Key HSM by executing the following commands:
$ sudo service keyhsm shutdown
$ sudo service keyhsm start

Key Trustee KMS cannot connect to Key Trustee Server using TLS versions other than 1.0 on JDK 7

If you have configured Key Trustee Server to use a TLS version other than 1.0, Key Trustee KMS fails to connect to Key Trustee Server, and key operations fail when using JDK 7.

Workaround: Use TLS version 1.0 only, or JDK 8.

Key Trustee Server cannot use TLS version 1.2 on RHEL 6

Configuring Key Trustee Server to use TLS version 1.2 causes Key Trustee Server to be unable to start.

Workaround: Use your operating system package manager to upgrade the pyOpenSSL package to version 1.4 or higher, or do not configure Key Trustee Server to use TLS version 1.2.

Upgraded passive Key Trustee Server fails to start due to incorrect ownership of recovery.conf

Passive Key Trustee Servers upgraded from Key Trustee Server 3.8.x or lower fail to start with the following error:
WARNING:root:stdout pg_basebackup: directory "/var/lib/pgsql/9.3/keytrustee" exists but is not empty
Traceback (most recent call last):
  File "/usr/bin/ktadmin", line 484, in <module>
  File "/usr/bin/ktadmin", line 473, in main
  File "/usr/bin/ktadmin", line 349, in init_slave
    pgsetup.base_backup(ARGS.pg_rootdir, ARGS.master, PKG, run_as=ARGS.postgres_user)
  File "/usr/lib/python2.6/site-packages/keytrustee/server/setup/", line 206, in base_backup
    run([pg_basebackup, '-D', dest, '--host=%s' % master_ip, '--port=%d' % port, '--username=%s' % db_user], run_as=run_as)
  File "/usr/lib/python2.6/site-packages/keytrustee/", line 145, in run
    raise subprocess.CalledProcessError(p.returncode, cmd)
subprocess.CalledProcessError: Command '['/usr/pgsql-9.3/bin/pg_basebackup', '-D', '/var/lib/pgsql/9.3/keytrustee', '', '--port=5432', '--username=keytrustee']' returned non-zero exit status 1
Workaround: Change the owner and group of /var/lib/pgsql/9.3/keytrustee/recovery.conf to postgres:
$ sudo chown postgres:postgres /var/lib/pgsql/9.3/keytrustee/recovery.conf

Key Trustee Server PKCS8 private key cannot communicate with Key HSM

If its private key is in PKCS8 format, Key Trustee Server cannot communicate with Key HSM.

Workaround: Convert the Key Trustee Server private key to raw RSA format.

Key Trustee Server backup script fails if PostgreSQL versions lower than 9.3 are installed

If PostgreSQL versions lower than 9.3 are installed on the Key Trustee Server host, the script fails with an error similar to the following:

pg_dump: server version: 9.3.11; pg_dump version: 9.2.14
pg_dump: aborting because of server version mismatch 

Workaround: Uninstall the lower PostgreSQL version.