Nick Dimiduk created HBASE-28077:
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Summary: Limit the maximum allocation when reading an HFileBlock
Key: HBASE-28077
URL: https://issues.apache.org/jira/browse/HBASE-28077
Project: HBase
Issue Type: Improvement
Components: regionserver
Reporter: Nick Dimiduk
During PR discussion on HBASE-28065 we observe that the value of
{{onDiskSizeWithoutHeader}} is read and used before its portion of an HFile has
had its checksum validated. A method parameter is also provided which is used
when the caller knows what size to expect based on some other source. While
there are guards in place that limit the range of values this field can take,
that range remains large, something like {{[33,Integer.MAX_VALUE)}}. We propose
further limiting the range of this value to safeguard the region server from an
excessively large allocation.
Conversation is in https://github.com/apache/hbase/pull/5384/files#r1322947549
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