[
https://issues.apache.org/jira/browse/HDFS-13166?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16379925#comment-16379925
]
genericqa commented on HDFS-13166:
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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} 0m
22s{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 6 new or modified test
files. {color} |
|| || || || {color:brown} HDFS-10285 Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 17m
15s{color} | {color:green} HDFS-10285 passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m
57s{color} | {color:green} HDFS-10285 passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
46s{color} | {color:green} HDFS-10285 passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m
2s{color} | {color:green} HDFS-10285 passed {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green}
11m 52s{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} 1m
59s{color} | {color:green} HDFS-10285 passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
53s{color} | {color:green} HDFS-10285 passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m
9s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m
6s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} cc {color} | {color:green} 1m
6s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 1m
6s{color} | {color:green} the patch passed {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}
0m 45s{color} | {color:orange} hadoop-hdfs-project/hadoop-hdfs: The patch
generated 2 new + 522 unchanged - 0 fixed = 524 total (was 522) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m
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} xml {color} | {color:green} 0m
1s{color} | {color:green} The patch has no ill-formed XML file. {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green}
10m 51s{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
26s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
57s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:red}-1{color} | {color:red} unit {color} | {color:red}150m 37s{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}204m 25s{color} |
{color:black} {color} |
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|| Reason || Tests ||
| Failed junit tests |
hadoop.hdfs.server.namenode.TestNameNodeMetadataConsistency |
| | hadoop.hdfs.server.datanode.TestDataNodeVolumeFailure |
| | hadoop.hdfs.server.namenode.TestTruncateQuotaUpdate |
| | hadoop.hdfs.server.datanode.TestDataNodeVolumeFailureReporting |
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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-13166 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12912374/HDFS-13166-HDFS-10285-02.patch
|
| Optional Tests | asflicense compile javac javadoc mvninstall mvnsite
unit shadedclient findbugs checkstyle cc xml |
| uname | Linux 5199b66e2907 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-10285 / bd77157 |
| 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/23234/artifact/out/diff-checkstyle-hadoop-hdfs-project_hadoop-hdfs.txt
|
| unit |
https://builds.apache.org/job/PreCommit-HDFS-Build/23234/artifact/out/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt
|
| Test Results |
https://builds.apache.org/job/PreCommit-HDFS-Build/23234/testReport/ |
| Max. process+thread count | 2768 (vs. ulimit of 10000) |
| modules | C: hadoop-hdfs-project/hadoop-hdfs U:
hadoop-hdfs-project/hadoop-hdfs |
| Console output |
https://builds.apache.org/job/PreCommit-HDFS-Build/23234/console |
| Powered by | Apache Yetus 0.8.0-SNAPSHOT http://yetus.apache.org |
This message was automatically generated.
> [SPS]: Implement caching mechanism to keep LIVE datanodes to minimize costly
> getLiveDatanodeStorageReport() calls
> -----------------------------------------------------------------------------------------------------------------
>
> Key: HDFS-13166
> URL: https://issues.apache.org/jira/browse/HDFS-13166
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Rakesh R
> Assignee: Rakesh R
> Priority: Major
> Attachments: HDFS-13166-HDFS-10285-00.patch,
> HDFS-13166-HDFS-10285-01.patch, HDFS-13166-HDFS-10285-02.patch
>
>
> Presently {{#getLiveDatanodeStorageReport()}} is fetched for every file and
> does the computation. This Jira sub-task is to discuss and implement a cache
> mechanism which in turn reduces the number of function calls. Also, could
> define a configurable refresh interval and periodically refresh the DN cache
> by fetching latest {{#getLiveDatanodeStorageReport}} on this interval.
> Following comments taken from HDFS-10285,
> [here|https://issues.apache.org/jira/browse/HDFS-10285?focusedCommentId=16347472&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-16347472]
> Comment-7)
> {quote}Adding getDatanodeStorageReport is concerning.
> getDatanodeListForReport is already a very bad method that should be avoided
> for anything but jmx – even then it’s a concern. I eliminated calls to it
> years ago. All it takes is a nscd/dns hiccup and you’re left holding the fsn
> lock for an excessive length of time. Beyond that, the response is going to
> be pretty large and tagging all the storage reports is not going to be cheap.
> verifyTargetDatanodeHasSpaceForScheduling does it really need the namesystem
> lock? Can’t DatanodeDescriptor#chooseStorage4Block synchronize on its
> storageMap?
> Appears to be calling getLiveDatanodeStorageReport for every file. As
> mentioned earlier, this is NOT cheap. The SPS should be able to operate on a
> fuzzy/cached state of the world. Then it gets another datanode report to
> determine the number of live nodes to decide if it should sleep before
> processing the next path. The number of nodes from the prior cached view of
> the world should suffice.
> {quote}
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