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Saijin Huang commented on HIVE-17549: ------------------------------------- Thanks for reply![~lirui].As we konw,MD5 is weaker than sha-256.it is necessary to replace md5 hash by sha-256.Also,RowContainer is used for SkewJoin.So in rowcontainer.java,the function "copyToDFSDirecory" is defined to copy tmpfile to hdfs path.However,the temp path generated by sha-256 is more security than md5 which help to hold the tmppath unique and security > Use SHA-256 for RowContainer to improve security > ------------------------------------------------ > > Key: HIVE-17549 > URL: https://issues.apache.org/jira/browse/HIVE-17549 > Project: Hive > Issue Type: Bug > Affects Versions: 3.0.0 > Reporter: Saijin Huang > Assignee: Saijin Huang > Attachments: HIVE-17549.1.patch > > > Use SHA-256 to replace md5 for RowContainer to improve security -- This message was sent by Atlassian JIRA (v6.4.14#64029)