Tim Armstrong created IMPALA-9359:
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Summary: Recover gracefully from corrupt kerberos credential cache
Key: IMPALA-9359
URL: https://issues.apache.org/jira/browse/IMPALA-9359
Project: IMPALA
Issue Type: Improvement
Components: Security
Affects Versions: Impala 3.3.0
Reporter: Tim Armstrong
Assignee: Tim Armstrong
# Start up a kerberized Impala cluster
# Corrupt the kerberos ticket cache used by impala /tmp/krb5cc_impala_internal
# Observe queries fail. The details depend a lot on timing, etc. I have seen
communication failures between impalads and with other systems, e.g. HDFS.
# The system will stay wedge in this state indefinitely
We have seen this happen once in production from /tmp filling up.
I prototyped a fix that amounts to re-running Kinit() to blow away the broken
credential cache. It needs more work to be production-ready
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