Zach York created HBASE-18757:
---------------------------------
Summary: Fix Improper bitwise & in BucketCache offset calculation
Key: HBASE-18757
URL: https://issues.apache.org/jira/browse/HBASE-18757
Project: HBase
Issue Type: Bug
Components: BucketCache
Reporter: Zach York
Assignee: Zach York
Offset calculation for BucketCache entries incorrectly uses an int literal to
try to ensure that the offset is positive. However, because it uses the string
literal 0xFFFFFFFF which java uses at an int (which is negative). When it does
the bitwise &, java sign extends the int effectively undoing the original
intention of the code and allowing for negative values to slip through.
Then the read or write to that block will fail due to trying to read/write at a
negative index which causes the BucketCache to fail.
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
