[ https://issues.apache.org/jira/browse/HDFS-8950?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14715593#comment-14715593 ]
Hadoop QA commented on HDFS-8950: --------------------------------- \\ \\ | (x) *{color:red}-1 overall{color}* | \\ \\ || Vote || Subsystem || Runtime || Comment || | {color:red}-1{color} | pre-patch | 17m 40s | Pre-patch trunk has 4 extant Findbugs (version 3.0.0) warnings. | | {color:green}+1{color} | @author | 0m 0s | The patch does not contain any @author tags. | | {color:green}+1{color} | tests included | 0m 0s | The patch appears to include 2 new or modified test files. | | {color:green}+1{color} | javac | 7m 54s | There were no new javac warning messages. | | {color:green}+1{color} | javadoc | 10m 2s | There were no new javadoc warning messages. | | {color:green}+1{color} | release audit | 0m 22s | The applied patch does not increase the total number of release audit warnings. | | {color:green}+1{color} | checkstyle | 1m 21s | There were no new checkstyle issues. | | {color:green}+1{color} | whitespace | 0m 1s | The patch has no lines that end in whitespace. | | {color:green}+1{color} | install | 1m 26s | mvn install still works. | | {color:green}+1{color} | eclipse:eclipse | 0m 32s | The patch built with eclipse:eclipse. | | {color:green}+1{color} | findbugs | 2m 33s | The patch does not introduce any new Findbugs (version 3.0.0) warnings. | | {color:green}+1{color} | native | 3m 9s | Pre-build of native portion | | {color:green}+1{color} | hdfs tests | 163m 45s | Tests passed in hadoop-hdfs. | | | | 208m 49s | | \\ \\ || Subsystem || Report/Notes || | Patch URL | http://issues.apache.org/jira/secure/attachment/12752543/HDFS-8950.003.patch | | Optional Tests | javadoc javac unit findbugs checkstyle | | git revision | trunk / a4d9acc | | Pre-patch Findbugs warnings | https://builds.apache.org/job/PreCommit-HDFS-Build/12141/artifact/patchprocess/trunkFindbugsWarningshadoop-hdfs.html | | hadoop-hdfs test log | https://builds.apache.org/job/PreCommit-HDFS-Build/12141/artifact/patchprocess/testrun_hadoop-hdfs.txt | | Test Results | https://builds.apache.org/job/PreCommit-HDFS-Build/12141/testReport/ | | Java | 1.7.0_55 | | uname | Linux asf900.gq1.ygridcore.net 3.13.0-36-lowlatency #63-Ubuntu SMP PREEMPT Wed Sep 3 21:56:12 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux | | Console output | https://builds.apache.org/job/PreCommit-HDFS-Build/12141/console | This message was automatically generated. > NameNode refresh doesn't remove DataNodes > ----------------------------------------- > > Key: HDFS-8950 > URL: https://issues.apache.org/jira/browse/HDFS-8950 > Project: Hadoop HDFS > Issue Type: Bug > Components: datanode, namenode > Affects Versions: 2.6.0 > Reporter: Daniel Templeton > Assignee: Daniel Templeton > Fix For: 2.8.0 > > Attachments: HDFS-8950.001.patch, HDFS-8950.002.patch, > HDFS-8950.003.patch > > > If you remove a DN from NN's allowed host list (HDFS was HA) and then do NN > refresh, it doesn't remove it actually and the NN UI keeps showing that node. > It may try to allocate some blocks to that DN as well during an MR job. This > issue is independent from DN decommission. > To reproduce: > 1. Add a DN to dfs_hosts_allow > 2. Refresh NN > 3. Start DN. Now NN starts seeing DN. > 4. Stop DN > 5. Remove DN from dfs_hosts_allow > 6. Refresh NN -> NN is still reporting DN as being used by HDFS. > This is different from decom because there DN is added to exclude list in > addition to being removed from allowed list, and in that case everything > works correctly. -- This message was sent by Atlassian JIRA (v6.3.4#6332)