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Hadoop QA commented on HDFS-7210: --------------------------------- {color:red}-1 overall{color}. Here are the results of testing the latest attachment http://issues.apache.org/jira/secure/attachment/12673861/HDFS-7210-004.patch against trunk revision 2a51494. {color:green}+1 @author{color}. The patch does not contain any @author tags. {color:green}+1 tests included{color}. The patch appears to include 2 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:red}-1 release audit{color}. The applied patch generated 1 release audit warnings. {color:red}-1 core tests{color}. The patch failed these unit tests in hadoop-hdfs-project/hadoop-hdfs: org.apache.hadoop.hdfs.server.namenode.ha.TestDNFencingWithReplication The following test timeouts occurred in hadoop-hdfs-project/hadoop-hdfs: org.apache.hadoop.hdfs.TestCrcCorruption {color:green}+1 contrib tests{color}. The patch passed contrib unit tests. Test results: https://builds.apache.org/job/PreCommit-HDFS-Build/8374//testReport/ Release audit warnings: https://builds.apache.org/job/PreCommit-HDFS-Build/8374//artifact/patchprocess/patchReleaseAuditProblems.txt Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/8374//console This message is automatically generated. > Avoid two separate RPC's namenode.append() and namenode.getFileInfo() for an > append call from DFSClient > ------------------------------------------------------------------------------------------------------- > > Key: HDFS-7210 > URL: https://issues.apache.org/jira/browse/HDFS-7210 > Project: Hadoop HDFS > Issue Type: Improvement > Components: hdfs-client, namenode > Reporter: Vinayakumar B > Assignee: Vinayakumar B > Attachments: HDFS-7210-001.patch, HDFS-7210-002.patch, > HDFS-7210-003.patch, HDFS-7210-004.patch > > > Currently DFSClient does 2 RPCs to namenode for an append operation. > {{append()}} for re-opening the file and getting the last block, > {{getFileInfo()}} Another on to get HdfsFileState > If we can combine result of these 2 calls and make one RPC, then it can > reduce load on NameNode. > For the backward compatibility we need to keep existing {{append()}} call as > is -- This message was sent by Atlassian JIRA (v6.3.4#6332)