Nick Dimiduk created HBASE-28065:
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Summary: Corrupt HFile data is mishandled in several cases
Key: HBASE-28065
URL: https://issues.apache.org/jira/browse/HBASE-28065
Project: HBase
Issue Type: Bug
Components: HFile
Affects Versions: 2.5.2
Reporter: Nick Dimiduk
While riding over a spat of HDFS data corruption issues, we've observed several
places in the read path that do not fall back to HDFS checksum appropriately.
These failures manifest during client reads and during compactions. Sometimes
failure is detected by the fallback {{verifyOnDiskSizeMatchesHeader}},
sometimes we attempt to allocate a buffer with a negative size, and sometimes
we read through to a failure from block decompression.
After code study, I think that all three cases arise from using a block header
that was read without checksum validation.
Will post up the stack traces in the comments. Now sure if we'll want a single
patch or multiple.
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