Details
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Improvement
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Status: Resolved
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Major
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Resolution: Fixed
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Impala 3.3.0
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ghx-label-8
Description
- 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
Attachments
Issue Links
- depends upon
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KUDU-3050 Recover gracefully from corrupt kerberos credential cache
- Resolved
- is duplicated by
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IMPALA-5385 Print appropriate error for failed TGT creation due to /tmp being full
- Resolved
- is related to
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IMPALA-9367 Allow specifying MEMORY kerberos credential cache
- Resolved