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From "genericqa (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-12998) SnapshotDiff - Provide an iterator-based listing API for calculating snapshotDiff
Date Fri, 16 Feb 2018 12:11:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-12998?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16366908#comment-16366908
] 

genericqa commented on HDFS-12998:
----------------------------------

| (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 33s{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} trunk Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m  9s{color} | {color:blue}
Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 15m 20s{color}
| {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  1m 26s{color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 38s{color}
| {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  1m 28s{color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green} 10m 30s{color}
| {color:green} branch has no errors when building and testing our client artifacts. {color}
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| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  3m 10s{color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  1m 13s{color} |
{color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m  8s{color} | {color:blue}
Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  1m 29s{color}
| {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  1m 21s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  1m 21s{color} | {color:green}
the patch passed {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}  0m 33s{color}
| {color:orange} hadoop-hdfs-project: The patch generated 2 new + 24 unchanged - 0 fixed =
26 total (was 24) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  1m 22s{color} |
{color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} whitespace {color} | {color:red}  0m  1s{color} | {color:red}
The patch has 1 line(s) that end in whitespace. Use git apply --whitespace=fix <<patch_file>>.
Refer https://git-scm.com/docs/git-apply {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green}  9m 19s{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}  3m 31s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  1m 11s{color} |
{color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  1m 23s{color} | {color:green}
hadoop-hdfs-client in the patch passed. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red}134m 33s{color} | {color:red}
hadoop-hdfs in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 24s{color}
| {color:green} The patch does not generate ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black}189m  2s{color} | {color:black}
{color} |
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|| Reason || Tests ||
| Failed junit tests | hadoop.hdfs.server.namenode.TestTruncateQuotaUpdate |
|   | hadoop.hdfs.tools.offlineImageViewer.TestOfflineImageViewerForContentSummary |
|   | hadoop.hdfs.server.datanode.TestDataNodeVolumeFailure |
|   | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure170 |
|   | hadoop.hdfs.TestDecommissionWithStriped |
|   | hadoop.hdfs.TestReadStripedFileWithDecoding |
|   | hadoop.hdfs.TestDFSUpgradeFromImage |
|   | hadoop.hdfs.TestEncryptionZones |
|   | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure190 |
|   | hadoop.hdfs.web.TestWebHdfsTimeouts |
|   | hadoop.hdfs.TestErasureCodingPolicies |
|   | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure110 |
|   | hadoop.hdfs.TestSafeModeWithStripedFile |
|   | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure |
|   | hadoop.hdfs.tools.offlineImageViewer.TestOfflineImageViewerWithStripedBlocks |
|   | hadoop.hdfs.TestDFSMkdirs |
|   | hadoop.hdfs.TestErasureCodingMultipleRacks |
|   | hadoop.hdfs.TestRestartDFS |
|   | hadoop.hdfs.TestDatanodeDeath |
|   | hadoop.hdfs.TestDFSStripedInputStream |
|   | hadoop.hdfs.TestReconstructStripedFile |
|   | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure080 |
|   | hadoop.hdfs.TestModTime |
|   | hadoop.hdfs.TestDecommission |
|   | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure090 |
|   | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure050 |
|   | hadoop.hdfs.TestMaintenanceState |
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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-12998 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12910806/HDFS-12998.002.patch
|
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  unit  shadedclient
 findbugs  checkstyle  |
| uname | Linux 86bf84ebf21e 4.4.0-64-generic #85-Ubuntu SMP Mon Feb 20 11:50:30 UTC 2017
x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/patchprocess/precommit/personality/provided.sh |
| git revision | trunk / a1e05e0 |
| 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/23093/artifact/out/diff-checkstyle-hadoop-hdfs-project.txt
|
| whitespace | https://builds.apache.org/job/PreCommit-HDFS-Build/23093/artifact/out/whitespace-eol.txt
|
| unit | https://builds.apache.org/job/PreCommit-HDFS-Build/23093/artifact/out/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt
|
|  Test Results | https://builds.apache.org/job/PreCommit-HDFS-Build/23093/testReport/ |
| Max. process+thread count | 3459 (vs. ulimit of 5500) |
| modules | C: hadoop-hdfs-project/hadoop-hdfs-client hadoop-hdfs-project/hadoop-hdfs U: hadoop-hdfs-project
|
| Console output | https://builds.apache.org/job/PreCommit-HDFS-Build/23093/console |
| Powered by | Apache Yetus 0.8.0-SNAPSHOT   http://yetus.apache.org |


This message was automatically generated.



> SnapshotDiff - Provide an iterator-based listing API for calculating snapshotDiff
> ---------------------------------------------------------------------------------
>
>                 Key: HDFS-12998
>                 URL: https://issues.apache.org/jira/browse/HDFS-12998
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>          Components: snapshots
>            Reporter: Shashikant Banerjee
>            Assignee: Shashikant Banerjee
>            Priority: Major
>         Attachments: HDFS-12998.001.patch, HDFS-12998.002.patch
>
>
> Currently , SnapshotDiff computation happens over multiple rpc calls to namenode depending
on the no of snapshotDiff entries where each rpc call returns at max 1000 entries by default
. Each "getSnapshotDiffreportListing" call to namenode returns a partial snapshotDiffreportList
which are all combined and processed at the client side to generate a final snapshotDiffreport.
There can be cases where SnapshotDiffReport can be huge and in situations as such , the  rpc
calls to namnode should happen on demand at the client side.



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