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Hadoop QA commented on HDFS-6934: --------------------------------- {color:green}+1 overall{color}. Here are the results of testing the latest attachment http://issues.apache.org/jira/secure/attachment/12677153/HDFS-6934.5.patch against trunk revision 65d95b1. {color:green}+1 @author{color}. The patch does not contain any @author tags. {color:green}+1 tests included{color}. The patch appears to include 4 new or modified test files. {color:green}+1 javac{color}. The applied patch does not increase the total number of javac compiler warnings. {color:green}+1 javadoc{color}. There were no new javadoc warning messages. {color:green}+1 eclipse:eclipse{color}. The patch built with eclipse:eclipse. {color:green}+1 findbugs{color}. The patch does not introduce any new Findbugs (version 2.0.3) warnings. {color:green}+1 release audit{color}. The applied patch does not increase the total number of release audit warnings. {color:green}+1 core tests{color}. The patch passed unit tests in hadoop-common-project/hadoop-common hadoop-hdfs-project/hadoop-hdfs. {color:green}+1 contrib tests{color}. The patch passed contrib unit tests. Test results: https://builds.apache.org/job/PreCommit-HDFS-Build/8543//testReport/ Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/8543//console This message is automatically generated. > Move checksum computation off the hot path when writing to RAM disk > ------------------------------------------------------------------- > > Key: HDFS-6934 > URL: https://issues.apache.org/jira/browse/HDFS-6934 > Project: Hadoop HDFS > Issue Type: Sub-task > Components: datanode > Reporter: Arpit Agarwal > Assignee: Chris Nauroth > Attachments: HDFS-6934.3.patch, HDFS-6934.4.patch, HDFS-6934.5.patch, > h6934_20141003b.patch, h6934_20141005.patch > > > Since local RAM is considered reliable we can avoid writing checksums on the > hot path when replicas are being written to a local RAM disk. > The checksum can be computed by the lazy writer when moving replicas to disk. -- This message was sent by Atlassian JIRA (v6.3.4#6332)