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https://issues.apache.org/jira/browse/HDFS-13616?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16489913#comment-16489913
]
genericqa commented on HDFS-13616:
----------------------------------
| (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
31s{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} 2m
2s{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 23m
38s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 27m
22s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 2m
40s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 2m
41s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green}
14m 58s{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} 4m
37s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 2m
10s{color} | {color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m
17s{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 2m
10s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} compile {color} | {color:red} 16m
52s{color} | {color:red} root in the patch failed. {color} |
| {color:red}-1{color} | {color:red} cc {color} | {color:red} 16m 52s{color} |
{color:red} root in the patch failed. {color} |
| {color:red}-1{color} | {color:red} javac {color} | {color:red} 16m 52s{color}
| {color:red} root in the patch failed. {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}
2m 45s{color} | {color:orange} root: The patch generated 13 new + 997 unchanged
- 0 fixed = 1010 total (was 997) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 2m
29s{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}
9m 48s{color} | {color:green} patch has no errors when building and testing our
client artifacts. {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red} 1m
37s{color} | {color:red} hadoop-hdfs-project/hadoop-hdfs-client generated 4 new
+ 0 unchanged - 0 fixed = 4 total (was 0) {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red} 1m
52s{color} | {color:red} hadoop-hdfs-project/hadoop-hdfs generated 1 new + 0
unchanged - 0 fixed = 1 total (was 0) {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m
48s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 8m 20s{color}
| {color:red} hadoop-common in the patch failed. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 1m
33s{color} | {color:green} hadoop-hdfs-client in the patch passed. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red}106m 30s{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}235m 25s{color} |
{color:black} {color} |
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|| Reason || Tests ||
| FindBugs | module:hadoop-hdfs-project/hadoop-hdfs-client |
| | org.apache.hadoop.hdfs.protocol.BatchedDirectoryListing.getListings() may
expose internal representation by returning BatchedDirectoryListing.listings
At BatchedDirectoryListing.java:by returning BatchedDirectoryListing.listings
At BatchedDirectoryListing.java:[line 36] |
| | org.apache.hadoop.hdfs.protocol.BatchedDirectoryListing.getStartAfter()
may expose internal representation by returning
BatchedDirectoryListing.startAfter At BatchedDirectoryListing.java:by
returning BatchedDirectoryListing.startAfter At
BatchedDirectoryListing.java:[line 44] |
| | new
org.apache.hadoop.hdfs.protocol.BatchedDirectoryListing(HdfsPartialListing[],
boolean, byte[]) may expose internal representation by storing an externally
mutable object into BatchedDirectoryListing.listings At
BatchedDirectoryListing.java:expose internal representation by storing an
externally mutable object into BatchedDirectoryListing.listings At
BatchedDirectoryListing.java:[line 30] |
| | new
org.apache.hadoop.hdfs.protocol.BatchedDirectoryListing(HdfsPartialListing[],
boolean, byte[]) may expose internal representation by storing an externally
mutable object into BatchedDirectoryListing.startAfter At
BatchedDirectoryListing.java:expose internal representation by storing an
externally mutable object into BatchedDirectoryListing.startAfter At
BatchedDirectoryListing.java:[line 32] |
| FindBugs | module:hadoop-hdfs-project/hadoop-hdfs |
| | Found reliance on default encoding in
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getSrcPathsHash(String[]):in
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getSrcPathsHash(String[]):
String.getBytes() At FSNamesystem.java:[line 3807] |
| Failed junit tests | hadoop.fs.TestHarFileSystem |
| | hadoop.fs.TestFilterFileSystem |
| | hadoop.hdfs.server.namenode.TestReconstructStripedBlocks |
| | hadoop.tools.TestHdfsConfigFields |
| | hadoop.hdfs.client.impl.TestBlockReaderLocal |
| | hadoop.hdfs.web.TestWebHdfsTimeouts |
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|| Subsystem || Report/Notes ||
| Docker | Client=17.05.0-ce Server=17.05.0-ce Image:yetus/hadoop:abb62dd |
| JIRA Issue | HDFS-13616 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12924994/HDFS-13616.001.patch |
| Optional Tests | asflicense compile javac javadoc mvninstall mvnsite
unit shadedclient findbugs checkstyle cc |
| uname | Linux 6d5310c04375 4.4.0-116-generic #140-Ubuntu SMP Mon Feb 12
21:23:04 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/patchprocess/precommit/personality/provided.sh |
| git revision | trunk / 2d19e7d |
| maven | version: Apache Maven 3.3.9 |
| Default Java | 1.8.0_162 |
| findbugs | v3.1.0-RC1 |
| compile |
https://builds.apache.org/job/PreCommit-HDFS-Build/24292/artifact/out/patch-compile-root.txt
|
| cc |
https://builds.apache.org/job/PreCommit-HDFS-Build/24292/artifact/out/patch-compile-root.txt
|
| javac |
https://builds.apache.org/job/PreCommit-HDFS-Build/24292/artifact/out/patch-compile-root.txt
|
| checkstyle |
https://builds.apache.org/job/PreCommit-HDFS-Build/24292/artifact/out/diff-checkstyle-root.txt
|
| findbugs |
https://builds.apache.org/job/PreCommit-HDFS-Build/24292/artifact/out/new-findbugs-hadoop-hdfs-project_hadoop-hdfs-client.html
|
| findbugs |
https://builds.apache.org/job/PreCommit-HDFS-Build/24292/artifact/out/new-findbugs-hadoop-hdfs-project_hadoop-hdfs.html
|
| unit |
https://builds.apache.org/job/PreCommit-HDFS-Build/24292/artifact/out/patch-unit-hadoop-common-project_hadoop-common.txt
|
| unit |
https://builds.apache.org/job/PreCommit-HDFS-Build/24292/artifact/out/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt
|
| Test Results |
https://builds.apache.org/job/PreCommit-HDFS-Build/24292/testReport/ |
| Max. process+thread count | 3819 (vs. ulimit of 10000) |
| modules | C: hadoop-common-project/hadoop-common
hadoop-hdfs-project/hadoop-hdfs-client hadoop-hdfs-project/hadoop-hdfs U: . |
| Console output |
https://builds.apache.org/job/PreCommit-HDFS-Build/24292/console |
| Powered by | Apache Yetus 0.8.0-SNAPSHOT http://yetus.apache.org |
This message was automatically generated.
> Batch listing of multiple directories
> -------------------------------------
>
> Key: HDFS-13616
> URL: https://issues.apache.org/jira/browse/HDFS-13616
> Project: Hadoop HDFS
> Issue Type: New Feature
> Affects Versions: 3.2.0
> Reporter: Andrew Wang
> Assignee: Andrew Wang
> Priority: Major
> Attachments: HDFS-13616.001.patch
>
>
> One of the dominant workloads for external metadata services is listing of
> partition directories. This can end up being bottlenecked on RTT time when
> partition directories contain a small number of files. This is fairly common,
> since fine-grained partitioning is used for partition pruning by the query
> engines.
> A batched listing API that takes multiple paths amortizes the RTT cost.
> Initial benchmarks show a 10-20x improvement in metadata loading performance.
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