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https://issues.apache.org/jira/browse/HADOOP-16018?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16737590#comment-16737590
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Hadoop QA commented on HADOOP-16018:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 23m
49s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {color} ||
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 0m
0s{color} | {color:blue} Findbugs executables are not available. {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} branch-2 Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 16m
31s{color} | {color:green} branch-2 passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m
27s{color} | {color:green} branch-2 passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
21s{color} | {color:green} branch-2 passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m
33s{color} | {color:green} branch-2 passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
24s{color} | {color:green} branch-2 passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:red}-1{color} | {color:red} mvninstall {color} | {color:red} 0m
23s{color} | {color:red} hadoop-distcp in the patch failed. {color} |
| {color:red}-1{color} | {color:red} compile {color} | {color:red} 0m
21s{color} | {color:red} hadoop-distcp in the patch failed. {color} |
| {color:red}-1{color} | {color:red} javac {color} | {color:red} 0m 21s{color}
| {color:red} hadoop-distcp in the patch failed. {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
15s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} mvnsite {color} | {color:red} 0m
23s{color} | {color:red} hadoop-distcp in the patch failed. {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} javadoc {color} | {color:green} 0m
16s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 0m 22s{color}
| {color:red} hadoop-distcp in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m
30s{color} | {color:green} The patch does not generate ASF License warnings.
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 45m 42s{color} |
{color:black} {color} |
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|| Subsystem || Report/Notes ||
| Docker | Client=17.05.0-ce Server=17.05.0-ce Image:yetus/hadoop:a716388 |
| JIRA Issue | HADOOP-16018 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12954227/HADOOP-16018-branch-2-002.patch
|
| Optional Tests | dupname asflicense compile javac javadoc mvninstall
mvnsite unit shadedclient findbugs checkstyle |
| uname | Linux cf38a3ed3acb 4.4.0-138-generic #164~14.04.1-Ubuntu SMP Fri Oct
5 08:56:16 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/patchprocess/precommit/personality/provided.sh |
| git revision | branch-2 / 2a416fe |
| maven | version: Apache Maven 3.3.9
(bb52d8502b132ec0a5a3f4c09453c07478323dc5; 2015-11-10T16:41:47+00:00) |
| Default Java | 1.7.0_181 |
| mvninstall |
https://builds.apache.org/job/PreCommit-HADOOP-Build/15753/artifact/out/patch-mvninstall-hadoop-tools_hadoop-distcp.txt
|
| compile |
https://builds.apache.org/job/PreCommit-HADOOP-Build/15753/artifact/out/patch-compile-hadoop-tools_hadoop-distcp.txt
|
| javac |
https://builds.apache.org/job/PreCommit-HADOOP-Build/15753/artifact/out/patch-compile-hadoop-tools_hadoop-distcp.txt
|
| mvnsite |
https://builds.apache.org/job/PreCommit-HADOOP-Build/15753/artifact/out/patch-mvnsite-hadoop-tools_hadoop-distcp.txt
|
| unit |
https://builds.apache.org/job/PreCommit-HADOOP-Build/15753/artifact/out/patch-unit-hadoop-tools_hadoop-distcp.txt
|
| Test Results |
https://builds.apache.org/job/PreCommit-HADOOP-Build/15753/testReport/ |
| Max. process+thread count | 66 (vs. ulimit of 10000) |
| modules | C: hadoop-tools/hadoop-distcp U: hadoop-tools/hadoop-distcp |
| Console output |
https://builds.apache.org/job/PreCommit-HADOOP-Build/15753/console |
| Powered by | Apache Yetus 0.8.0 http://yetus.apache.org |
This message was automatically generated.
> DistCp won't reassemble chunks when blocks per chunk > 0
> --------------------------------------------------------
>
> Key: HADOOP-16018
> URL: https://issues.apache.org/jira/browse/HADOOP-16018
> Project: Hadoop Common
> Issue Type: Bug
> Components: tools/distcp
> Affects Versions: 3.2.0, 2.9.2
> Reporter: Kai Xie
> Assignee: Kai Xie
> Priority: Major
> Fix For: 3.0.4, 3.2.1, 3.1.3
>
> Attachments: HADOOP-16018-002.patch, HADOOP-16018-branch-2-002.patch,
> HADOOP-16018-branch-2-002.patch, HADOOP-16018.01.patch
>
>
> I was investigating why hadoop-distcp-2.9.2 won't reassemble chunks of the
> same file when blocks per chunk has been set > 0.
> In the CopyCommitter::commitJob, this logic can prevent chunks from
> reassembling if blocks per chunk is equal to 0:
> {code:java}
> if (blocksPerChunk > 0) {
> concatFileChunks(conf);
> }
> {code}
> Then in CopyCommitter's ctor, blocksPerChunk is initialised from the config:
> {code:java}
> blocksPerChunk = context.getConfiguration().getInt(
> DistCpOptionSwitch.BLOCKS_PER_CHUNK.getConfigLabel(), 0);
> {code}
>
> But here the config key DistCpOptionSwitch.BLOCKS_PER_CHUNK.getConfigLabel()
> will always returns empty string because it is constructed without config
> label:
> {code:java}
> BLOCKS_PER_CHUNK("",
> new Option("blocksperchunk", true, "If set to a positive value, files"
> + "with more blocks than this value will be split into chunks of "
> + "<blocksperchunk> blocks to be transferred in parallel, and "
> + "reassembled on the destination. By default, <blocksperchunk> is "
> + "0 and the files will be transmitted in their entirety without "
> + "splitting. This switch is only applicable when the source file "
> + "system implements getBlockLocations method and the target file "
> + "system implements concat method"))
> {code}
> As a result it will fall back to the default value 0 for blocksPerChunk, and
> prevent the chunks from reassembling.
>
>
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