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Ted Yu commented on HBASE-18757: -------------------------------- The new test does fail on some platform(s). +1 > 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 > Fix For: 1.4.0, 1.3.2, 1.2.7, 2.0.0-alpha-3 > > Attachments: HBASE-18757.master.001.patch, > HBASE-18757.master.002.patch > > > 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)