In Red Hat Satellite 6, the hammer command fails with the error: "Failed to open TCP connection to localhost:23443 (Connection refused - connect(2) for 'localhost' port 23443)."

Issue

• When running the hammer command in Red Hat Satellite 6, the following error occurs:

  # hammer ping
  database:
     Status:          ok
     Server Response: Duration: 0ms
  candlepin:
     Status:          FAIL
     Server Response: Message: Failed to open TCP connection to localhost:23443 (Connection refused - connect(2) for "localhost" port 23443)
  candlepin_auth:
     Status:          FAIL
     Server Response: Message: A backend service [ Candlepin ] is unreachable
  candlepin_events:
     Status:          FAIL
     message:         Not running
     Server Response: Duration: 0ms
  

• The following error is also observed in /var/log/tomcat/localhost.20XX-XX-XX.log:

  1) Error injecting constructor, java.lang.RuntimeException: java.io.FileNotFoundException: /etc/candlepin/certs/candlepin-ca.crt (Permission denied)
   at org.candlepin.pki.CertificateReader.<init>(CertificateReader.java:50)
   at org.candlepin.guice.CandlepinModule.bindPki(CandlepinModule.java:303)
   while locating org.candlepin.pki.CertificateReader
     for the 1st parameter of org.candlepin.pki.impl.JSSPKIUtility.<init>(JSSPKIUtility.java:96)
   while locating org.candlepin.pki.impl.JSSPKIUtility
   at org.candlepin.guice.CandlepinModule.bindPki(CandlepinModule.java:302)
   while locating org.candlepin.pki.PKIUtility