Eric Newton created ACCUMULO-4000:
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Summary: log recovery failed after hard reset
Key: ACCUMULO-4000
URL: https://issues.apache.org/jira/browse/ACCUMULO-4000
Project: Accumulo
Issue Type: Bug
Environment: very large cluster, accumulo 1.6.2, hadoop 2.5.0 (cdh 5.3)
Reporter: Eric Newton
Assignee: Eric Newton
Had a hardware failure on a single node within a large cluster. Tablets were
migrated away, but one tablet would not recover. The Closer run by the master
to release the write lease on the WAL failed repeatedly.
Afterwards, it was determined the file was small, probably just opened and used
at the moment the machine failed. The block could not be recovered from any
replicas.
One question raised: does the write pipeline acknowledge the sync, before the
write pipeline completes?
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