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https://issues.apache.org/jira/browse/HDFS-12591?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16274919#comment-16274919
 ] 

genericqa commented on HDFS-12591:
----------------------------------

| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue}  0m 
19s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {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:brown} HDFS-9806 Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 17m 
 4s{color} | {color:green} HDFS-9806 passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  1m  
0s{color} | {color:green} HDFS-9806 passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
47s{color} | {color:green} HDFS-9806 passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  1m  
6s{color} | {color:green} HDFS-9806 passed {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green} 
12m  9s{color} | {color:green} branch has no errors when building and testing 
our client artifacts. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  2m  
4s{color} | {color:green} HDFS-9806 passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
51s{color} | {color:green} HDFS-9806 passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  1m 
 0s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
52s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  0m 
52s{color} | {color:green} the patch passed {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}  
0m 40s{color} | {color:orange} hadoop-hdfs-project/hadoop-hdfs: The patch 
generated 5 new + 428 unchanged - 0 fixed = 433 total (was 428) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 
59s{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} shadedclient {color} | {color:green} 
10m 35s{color} | {color:green} patch has no errors when building and testing 
our client artifacts. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  2m  
6s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
50s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 48m 43s{color} 
| {color:red} hadoop-hdfs in the patch failed. {color} |
| {color:red}-1{color} | {color:red} asflicense {color} | {color:red}  0m 
21s{color} | {color:red} The patch generated 163 ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black}101m  9s{color} | 
{color:black} {color} |
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|| Reason || Tests ||
| Unreaped Processes | hadoop-hdfs:4 |
| Failed junit tests | 
hadoop.hdfs.server.namenode.TestCheckPointForSecurityTokens |
|   | hadoop.hdfs.server.namenode.TestDiskspaceQuotaUpdate |
|   | hadoop.hdfs.server.namenode.TestCheckpoint |
|   | hadoop.hdfs.server.namenode.TestEnabledECPolicies |
|   | hadoop.hdfs.server.namenode.TestNameNodeRetryCacheMetrics |
|   | hadoop.hdfs.server.namenode.TestFSImageWithXAttr |
|   | hadoop.hdfs.server.namenode.TestFSImageWithAcl |
|   | hadoop.hdfs.server.namenode.TestFSDirectory |
|   | hadoop.hdfs.server.namenode.TestNameNodeMetadataConsistency |
|   | hadoop.hdfs.server.namenode.TestProtectedDirectories |
|   | hadoop.hdfs.server.datanode.TestFsDatasetCache |
|   | hadoop.hdfs.server.balancer.TestBalancerWithEncryptedTransfer |
|   | hadoop.hdfs.server.namenode.TestGetBlockLocations |
|   | hadoop.hdfs.server.namenode.TestSaveNamespace |
|   | hadoop.hdfs.server.balancer.TestBalancerWithNodeGroup |
|   | hadoop.hdfs.server.namenode.ha.TestStandbyInProgressTail |
|   | hadoop.hdfs.server.namenode.TestAddBlock |
|   | hadoop.hdfs.server.datanode.TestDataNodeMetrics |
|   | hadoop.hdfs.server.balancer.TestBalancerWithHANameNodes |
|   | hadoop.hdfs.server.balancer.TestBalancerWithSaslDataTransfer |
|   | hadoop.hdfs.server.balancer.TestBalancer |
|   | hadoop.hdfs.server.namenode.TestMalformedURLs |
|   | hadoop.hdfs.TestSafeModeWithStripedFile |
|   | hadoop.hdfs.server.namenode.TestAclConfigFlag |
|   | hadoop.hdfs.TestWriteReadStripedFile |
|   | hadoop.hdfs.server.namenode.TestMetaSave |
|   | hadoop.hdfs.server.namenode.TestGenericJournalConf |
|   | hadoop.hdfs.server.namenode.TestSecurityTokenEditLog |
|   | hadoop.hdfs.server.namenode.TestBlockUnderConstruction |
|   | hadoop.hdfs.server.namenode.metrics.TestNameNodeMetrics |
|   | hadoop.hdfs.server.balancer.TestBalancerWithMultipleNameNodes |
|   | hadoop.hdfs.server.namenode.ha.TestLossyRetryInvocationHandler |
|   | hadoop.hdfs.server.namenode.TestNameNodeHttpServerXFrame |
|   | hadoop.hdfs.server.namenode.ha.TestHAAppend |
|   | hadoop.hdfs.server.namenode.TestEditLogAutoroll |
|   | hadoop.hdfs.server.namenode.TestNameNodeMetricsLogger |
|   | hadoop.hdfs.server.namenode.ha.TestStandbyIsHot |
|   | hadoop.hdfs.server.namenode.TestNameNodeStatusMXBean |
|   | hadoop.hdfs.TestFsShellPermission |
|   | hadoop.hdfs.server.namenode.TestCommitBlockWithInvalidGenStamp |
|   | hadoop.hdfs.server.namenode.TestUpgradeDomainBlockPlacementPolicy |
|   | hadoop.hdfs.server.namenode.TestCreateEditsLog |
|   | hadoop.hdfs.server.namenode.TestFSNamesystemMBean |
|   | hadoop.hdfs.server.namenode.TestQuotaWithStripedBlocks |
|   | hadoop.hdfs.server.namenode.TestNameNodeHttpServer |
|   | hadoop.hdfs.server.datanode.TestDeleteBlockPool |
|   | hadoop.hdfs.server.balancer.TestBalancerRPCDelay |
|   | hadoop.hdfs.server.namenode.TestFsckWithMultipleNameNodes |
|   | hadoop.hdfs.server.namenode.TestEditLogJournalFailures |
| Timed out junit tests | 
org.apache.hadoop.hdfs.TestReadStripedFileWithDecodingCorruptData |
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|| Subsystem || Report/Notes ||
| Docker | Client=17.05.0-ce Server=17.05.0-ce Image:yetus/hadoop:5b98639 |
| JIRA Issue | HDFS-12591 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12900259/HDFS-12591-HDFS-9806.005.patch
 |
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  
unit  shadedclient  findbugs  checkstyle  |
| uname | Linux 4a37585e7a60 3.13.0-135-generic #184-Ubuntu SMP Wed Oct 18 
11:55:51 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/patchprocess/precommit/personality/provided.sh |
| git revision | HDFS-9806 / 64be409 |
| maven | version: Apache Maven 3.3.9 |
| Default Java | 1.8.0_151 |
| findbugs | v3.1.0-RC1 |
| checkstyle | 
https://builds.apache.org/job/PreCommit-HDFS-Build/22250/artifact/out/diff-checkstyle-hadoop-hdfs-project_hadoop-hdfs.txt
 |
| Unreaped Processes Log | 
https://builds.apache.org/job/PreCommit-HDFS-Build/22250/artifact/out/patch-unit-hadoop-hdfs-project_hadoop-hdfs-reaper.txt
 |
| unit | 
https://builds.apache.org/job/PreCommit-HDFS-Build/22250/artifact/out/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt
 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-HDFS-Build/22250/testReport/ |
| asflicense | 
https://builds.apache.org/job/PreCommit-HDFS-Build/22250/artifact/out/patch-asflicense-problems.txt
 |
| Max. process+thread count | 2465 (vs. ulimit of 5000) |
| modules | C: hadoop-hdfs-project/hadoop-hdfs U: 
hadoop-hdfs-project/hadoop-hdfs |
| Console output | 
https://builds.apache.org/job/PreCommit-HDFS-Build/22250/console |
| Powered by | Apache Yetus 0.7.0-SNAPSHOT   http://yetus.apache.org |


This message was automatically generated.



> [READ] Implement LevelDBFileRegionFormat
> ----------------------------------------
>
>                 Key: HDFS-12591
>                 URL: https://issues.apache.org/jira/browse/HDFS-12591
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: hdfs
>            Reporter: Ewan Higgs
>            Assignee: Ewan Higgs
>            Priority: Minor
>         Attachments: HDFS-12591-HDFS-9806.001.patch, 
> HDFS-12591-HDFS-9806.002.patch, HDFS-12591-HDFS-9806.003.patch, 
> HDFS-12591-HDFS-9806.004.patch, HDFS-12591-HDFS-9806.005.patch
>
>
> The existing work for HDFS-9806 uses an implementation of the {{FileRegion}} 
> read from a csv file. This is good for testability and diagnostic purposes, 
> but it is not very efficient for larger systems.
> There should be a version that is similar to the {{TextFileRegionFormat}} 
> that instead uses LevelDB.



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