Todd Lipcon created KUDU-2989:
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Summary: SASL server fails when FQDN is greater than 63 characters
long
Key: KUDU-2989
URL: https://issues.apache.org/jira/browse/KUDU-2989
Project: Kudu
Issue Type: Bug
Components: rpc, security
Affects Versions: 1.10.0
Reporter: Todd Lipcon
Currently, on the server side, Kudu doesn't explicitly pass the host's FQDN
into the SASL library. Due to an upstream SASL bug
(https://github.com/cyrusimap/cyrus-sasl/issues/583) the FQDN gets truncated
when trying to determine the server's principal, in the case that the server's
fQDN is longer than 64 characters.
This results in startup failures where the preflight checks fail due to not
finding the appropriate keytab entry (after searching for a truncated host name)
To work around this, we should use our own code to compute the FQDN.
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