[ https://issues.apache.org/jira/browse/HDFS-11160?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15687759#comment-15687759 ]
Hadoop QA commented on HDFS-11160: ---------------------------------- | (x) *{color:red}-1 overall{color}* | \\ \\ || Vote || Subsystem || Runtime || Comment || | {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m 19s{color} | {color:blue} Docker mode activated. {color} | | {color:green}+1{color} | {color:green} @author {color} | {color:green} 0m 0s{color} | {color:green} The patch does not contain any @author tags. {color} | | {color:green}+1{color} | {color:green} test4tests {color} | {color:green} 0m 0s{color} | {color:green} The patch appears to include 1 new or modified test files. {color} | | {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 9m 13s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 54s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 29s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m 0s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 16s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 2m 2s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 40s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m 57s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 46s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m 46s{color} | {color:green} the patch passed {color} | | {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange} 0m 27s{color} | {color:orange} hadoop-hdfs-project/hadoop-hdfs: The patch generated 1 new + 105 unchanged - 1 fixed = 106 total (was 106) {color} | | {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m 57s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 11s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} whitespace {color} | {color:green} 0m 0s{color} | {color:green} The patch has no whitespace issues. {color} | | {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 2m 3s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 41s{color} | {color:green} the patch passed {color} | | {color:red}-1{color} | {color:red} unit {color} | {color:red}130m 50s{color} | {color:red} hadoop-hdfs in the patch failed. {color} | | {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 39s{color} | {color:green} The patch does not generate ASF License warnings. {color} | | {color:black}{color} | {color:black} {color} | {color:black}153m 50s{color} | {color:black} {color} | \\ \\ || Reason || Tests || | Failed junit tests | hadoop.hdfs.TestReadStripedFileWithMissingBlocks | | | hadoop.hdfs.server.datanode.TestDataNodeVolumeFailure | | | hadoop.fs.viewfs.TestViewFsHdfs | | | hadoop.fs.TestSymlinkHdfsFileContext | | | hadoop.hdfs.server.datanode.TestDirectoryScanner | | Timed out junit tests | org.apache.hadoop.hdfs.TestLeaseRecovery2 | | | org.apache.hadoop.hdfs.TestReplication | \\ \\ || Subsystem || Report/Notes || | Docker | Image:yetus/hadoop:a9ad5d6 | | JIRA Issue | HDFS-11160 | | JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12840065/HDFS-11160.002.patch | | Optional Tests | asflicense compile javac javadoc mvninstall mvnsite unit findbugs checkstyle | | uname | Linux c73454c14209 3.13.0-96-generic #143-Ubuntu SMP Mon Aug 29 20:15:20 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux | | Build tool | maven | | Personality | /testptch/hadoop/patchprocess/precommit/personality/provided.sh | | git revision | trunk / afcf8d3 | | Default Java | 1.8.0_111 | | findbugs | v3.0.0 | | checkstyle | https://builds.apache.org/job/PreCommit-HDFS-Build/17634/artifact/patchprocess/diff-checkstyle-hadoop-hdfs-project_hadoop-hdfs.txt | | unit | https://builds.apache.org/job/PreCommit-HDFS-Build/17634/artifact/patchprocess/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt | | Test Results | https://builds.apache.org/job/PreCommit-HDFS-Build/17634/testReport/ | | modules | C: hadoop-hdfs-project/hadoop-hdfs U: hadoop-hdfs-project/hadoop-hdfs | | Console output | https://builds.apache.org/job/PreCommit-HDFS-Build/17634/console | | Powered by | Apache Yetus 0.4.0-SNAPSHOT http://yetus.apache.org | This message was automatically generated. > VolumeScanner reports write-in-progress replicas as corrupt incorrectly > ----------------------------------------------------------------------- > > Key: HDFS-11160 > URL: https://issues.apache.org/jira/browse/HDFS-11160 > Project: Hadoop HDFS > Issue Type: Bug > Components: datanode > Environment: CDH5.7.4 > Reporter: Wei-Chiu Chuang > Assignee: Wei-Chiu Chuang > Attachments: HDFS-11160.001.patch, HDFS-11160.002.patch, > HDFS-11160.reproduce.patch > > > Due to a race condition initially reported in HDFS-6804, VolumeScanner may > erroneously detect good replicas as corrupt. This is serious because in some > cases it results in data loss if all replicas are declared corrupt. > We are investigating an incidence that caused very high block corruption rate > in a relatively small cluster. Initially, we thought HDFS-11056 is to blame. > However, after applying HDFS-11056, we are still seeing VolumeScanner > reporting corrupt replicas. > It turns out that if a replica is being appended while VolumeScanner is > scanning it, VolumeScanner may use the new checksum to compare against old > data, causing checksum mismatch. > I have a unit test to reproduce the error. Will attach later. > To fix it, I propose a FinalizedReplica object should also have a > lastChecksum field like ReplicaBeingWritten, and BlockSender should use the > in-memory lastChecksum to verify the partial data in the last chunk on disk. > File this jira to discuss a good fix for this issue. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org