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Uma Maheswara Rao G commented on HADOOP-8240: --------------------------------------------- This fix works for me. {code} --- hadoop-common/src/main/java/org/apache/hadoop/fs/FSOutputSummer.java (revision 16191) +++ hadoop-common/src/main/java/org/apache/hadoop/fs/FSOutputSummer.java (working copy) @@ -169,6 +169,9 @@ } static byte[] int2byte(int integer, byte[] bytes) { + if (bytes.length == 0) { + return bytes; + } bytes[0] = (byte)((integer >>> 24) & 0xFF); bytes[1] = (byte)((integer >>> 16) & 0xFF); bytes[2] = (byte)((integer >>> 8) & 0xFF); {code} What do you say Kihwal? do you agree with this small change or you have other fix in your mind? > Allow users to specify a checksum type on create() > -------------------------------------------------- > > Key: HADOOP-8240 > URL: https://issues.apache.org/jira/browse/HADOOP-8240 > Project: Hadoop Common > Issue Type: Improvement > Components: fs > Affects Versions: 0.23.0 > Reporter: Kihwal Lee > Assignee: Kihwal Lee > Fix For: 0.23.3, 2.0.2-alpha > > Attachments: hadoop-8240-branch-0.23-alone.patch.txt, > hadoop-8240.patch, hadoop-8240-post-hadoop-8700-br2-trunk.patch.txt, > hadoop-8240-post-hadoop-8700-br2-trunk.patch.txt, > hadoop-8240-trunk-branch2.patch.txt, hadoop-8240-trunk-branch2.patch.txt, > hadoop-8240-trunk-branch2.patch.txt > > > Per discussion in HADOOP-8060, a way for users to specify a checksum type on > create() is needed. The way FileSystem cache works makes it impossible to use > dfs.checksum.type to achieve this. Also checksum-related API is at > Filesystem-level, so we prefer something at that level, not hdfs-specific > one. Current proposal is to use CreatFlag. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira