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Hadoop QA commented on HDFS-6080: --------------------------------- {color:red}-1 overall{color}. Here are the results of testing the latest attachment http://issues.apache.org/jira/secure/attachment/12633583/HDFS-6080.patch against trunk revision . {color:green}+1 @author{color}. The patch does not contain any @author tags. {color:red}-1 tests included{color}. The patch doesn't appear to include any new or modified tests. Please justify why no new tests are needed for this patch. Also please list what manual steps were performed to verify this patch. {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:red}-1 findbugs{color}. The patch appears to introduce 1 new Findbugs (version 1.3.9) warnings. {color:green}+1 release audit{color}. The applied patch does not increase the total number of release audit warnings. {color:red}-1 core tests{color}. The patch failed these unit tests in hadoop-common-project/hadoop-nfs hadoop-hdfs-project/hadoop-hdfs hadoop-hdfs-project/hadoop-hdfs-nfs: org.apache.hadoop.fs.TestHdfsNativeCodeLoader org.apache.hadoop.hdfs.TestFileAppend4 {color:green}+1 contrib tests{color}. The patch passed contrib unit tests. Test results: https://builds.apache.org/job/PreCommit-HDFS-Build/6360//testReport/ Findbugs warnings: https://builds.apache.org/job/PreCommit-HDFS-Build/6360//artifact/trunk/patchprocess/newPatchFindbugsWarningshadoop-hdfs-nfs.html Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/6360//console This message is automatically generated. > rtmax and wtmax for NFS-hdfs-gateway should be configurable > ----------------------------------------------------------- > > Key: HDFS-6080 > URL: https://issues.apache.org/jira/browse/HDFS-6080 > Project: Hadoop HDFS > Issue Type: Bug > Reporter: Abin Shahab > Assignee: Abin Shahab > Fix For: 2.2.0, 2.3.0 > > Attachments: HDFS-6080.patch > > > Right now rtmax and wtmax are hardcoded in RpcProgramNFS3. These dictate the > maximum read and write capacity of the server. Therefore, these affect the > read and write performance. > We ran performance tests with 1mb, 100mb, and 1GB files. We noticed > significant performance decline with the size increase when compared to fuse. > We realized that the issue was with the hardcoded rtmax size(64k). > When we increased the rtmax to 1MB, we got a 10x improvement in performance. > NFS reads: > +---------------+------------+---------------+---------------+---------------+--------------------+----------------------+ > | File | Size | Run 1 | Run 2 | Run 3 > | Average | Std. Dev. | > | testFile100Mb | 104857600 | 23.131158137 | 19.24552955 | 19.793332866 > | 20.723340184333335 | 1.7172094782219731 | > | testFile1Gb | 1073741824 | 219.108776636 | 201.064032255 | 217.433909843 > | 212.53557291133333 | 8.14037175506561 | > | testFile1Mb | 1048576 | 0.330546906 | 0.256391808 | 0.28730168 > | 0.2914134646666667 | 0.030412987573361663 | > +---------------+------------+---------------+---------------+---------------+--------------------+----------------------+ > Fuse reads: > +---------------+------------+-------------+--------------+--------------+--------------------+-----------------------+ > | File | Size | Run 1 | Run 2 | Run 3 | > Average | Std. Dev. | > | testFile100Mb | 104857600 | 2.394459443 | 2.695265191 | 2.50046517 | > 2.5300632679999997 | 0.12457410127142007 | > | testFile1Gb | 1073741824 | 25.03324924 | 24.155102554 | 24.901525525 | > 24.696625772999997 | 0.386672412437576 | > | testFile1Mb | 1048576 | 0.271615094 | 0.270835986 | 0.271796438 | > 0.2714158393333333 | 0.0004166483951065848 | > +---------------+------------+-------------+--------------+--------------+--------------------+-----------------------+ > (NFS read after rtmax = 1MB) > +---------------+------------+--------------+-------------+--------------+---------------------+-----------------+ > | File | Size | Run 1 | Run 2 | Run 3 | > Average | Std. Dev. | > | testFile100Mb | 104857600 | 3.655261869 | 3.438676067 | 3.557464787 | > 3.5504675743333336 | 0.0885591069882058 | > | testFile1Gb | 1073741824 | 34.663612417 | 37.32089122 | 37.997718857 | > 36.660740831333335 | 1.4389615098060426 | > | testFile1Mb | 1048576 | 0.115602858 | 0.106826253 | 0.125229976 | > 0.11588636233333334 | 0.007515962395481867 | > +---------------+------------+--------------+-------------+--------------+---------------------+-----------------+ -- This message was sent by Atlassian JIRA (v6.2#6252)