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Hadoop QA commented on HBASE-17712: ----------------------------------- | (x) *{color:red}-1 overall{color}* | \\ \\ || Vote || Subsystem || Runtime || Comment || | {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m 12s {color} | {color:blue} Docker mode activated. {color} | | {color:green}+1{color} | {color:green} hbaseanti {color} | {color:green} 0m 0s {color} | {color:green} Patch does not have any anti-patterns. {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} 3m 4s {color} | {color:green} master passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 36s {color} | {color:green} master passed {color} | | {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 47s {color} | {color:green} master passed {color} | | {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 14s {color} | {color:green} master passed {color} | | {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 1m 41s {color} | {color:green} master passed {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 26s {color} | {color:green} master passed {color} | | {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m 42s {color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 36s {color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m 36s {color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 46s {color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 14s {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} hadoopcheck {color} | {color:green} 26m 47s {color} | {color:green} Patch does not cause any errors with Hadoop 2.6.1 2.6.2 2.6.3 2.6.4 2.6.5 2.7.1 2.7.2 2.7.3 or 3.0.0-alpha2. {color} | | {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 1m 49s {color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 25s {color} | {color:green} the patch passed {color} | | {color:red}-1{color} | {color:red} unit {color} | {color:red} 92m 14s {color} | {color:red} hbase-server in the patch failed. {color} | | {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 16s {color} | {color:green} The patch does not generate ASF License warnings. {color} | | {color:black}{color} | {color:black} {color} | {color:black} 131m 8s {color} | {color:black} {color} | \\ \\ || Subsystem || Report/Notes || | Docker | Client=1.12.3 Server=1.12.3 Image:yetus/hbase:8d52d23 | | JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12855869/HBASE-17712-ut.patch | | JIRA Issue | HBASE-17712 | | Optional Tests | asflicense javac javadoc unit findbugs hadoopcheck hbaseanti checkstyle compile | | uname | Linux d63b7e68d070 3.13.0-107-generic #154-Ubuntu SMP Tue Dec 20 09:57:27 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux | | Build tool | maven | | Personality | /home/jenkins/jenkins-slave/workspace/PreCommit-HBASE-Build/component/dev-support/hbase-personality.sh | | git revision | master / 678ad0e | | Default Java | 1.8.0_121 | | findbugs | v3.0.0 | | unit | https://builds.apache.org/job/PreCommit-HBASE-Build/5930/artifact/patchprocess/patch-unit-hbase-server.txt | | Test Results | https://builds.apache.org/job/PreCommit-HBASE-Build/5930/testReport/ | | modules | C: hbase-server U: hbase-server | | Console output | https://builds.apache.org/job/PreCommit-HBASE-Build/5930/console | | Powered by | Apache Yetus 0.3.0 http://yetus.apache.org | This message was automatically generated. > Remove/Simplify the logic of RegionScannerImpl.handleFileNotFound > ----------------------------------------------------------------- > > Key: HBASE-17712 > URL: https://issues.apache.org/jira/browse/HBASE-17712 > Project: HBase > Issue Type: Bug > Affects Versions: 2.0.0, 1.4.0 > Reporter: Duo Zhang > Assignee: Duo Zhang > Fix For: 2.0.0, 1.4.0 > > Attachments: HBASE-17712-ut.patch > > > It is introduced in HBASE-13651 and the logic became much more complicated > after HBASE-16304 due to a dead lock issue. It is really tough as sequence id > is involved in and the method we called is used to serve secondary replica > originally which does not handle write. > In fact, in 1.x release, the problem described in HBASE-13651 is gone. Now we > will write a compaction marker to WAL before deleting the compacted files. We > can only consider a RS as dead after its WAL files are all closed so if the > region has already been reassigned the compaction will fail as we can not > write out the compaction marker. > So theoretically, if we still hit FileNotFound exception, it should be a > critical bug which means we may loss data. I do not think it is a good idea > to just eat the exception and refresh store files. Or even if we want to do > this, we can just refresh store files without dropping memstore contents. > This will also simplify the logic a lot. > Suggestions are welcomed. -- This message was sent by Atlassian JIRA (v6.3.15#6346)