Anurag Mantripragada created IMPALA-9116:
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Summary: SASL server fails when FQDN is greater than 63 characters
long in Kudu RPC
Key: IMPALA-9116
URL: https://issues.apache.org/jira/browse/IMPALA-9116
Project: IMPALA
Issue Type: Bug
Components: Backend
Affects Versions: Impala 3.3.0
Reporter: Anurag Mantripragada
Fix For: Impala 3.4.0
In the current Kudu RPC implementation, we don'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.
Kudu is making the changes in it's own implementation here:
https://issues.apache.org/jira/browse/KUDU-2989, we should do the same.
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