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https://issues.apache.org/jira/browse/HDFS-14959?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16970525#comment-16970525
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Hadoop QA commented on HDFS-14959:
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 1m
24s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {color} ||
| {color:green}+1{color} | {color:green} dupname {color} | {color:green} 0m
0s{color} | {color:green} No case conflicting files found. {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:brown} trunk Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 22m
38s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m
24s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green}
38m 47s{color} | {color:green} branch has no errors when building and testing
our client artifacts. {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m
12s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m
20s{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}
14m 43s{color} | {color:green} patch has no errors when building and testing
our client artifacts. {color} |
|| || || || {color:brown} Other Tests {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} 59m 52s{color} |
{color:black} {color} |
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|| Subsystem || Report/Notes ||
| Docker | Client=19.03.4 Server=19.03.4 base:
https://builds.apache.org/job/hadoop-multibranch/job/PR-1706/1/artifact/out/Dockerfile
|
| GITHUB PR | https://github.com/apache/hadoop/pull/1706 |
| JIRA Issue | HDFS-14959 |
| Optional Tests | dupname asflicense mvnsite |
| uname | Linux 66ca89553e90 4.15.0-66-generic #75-Ubuntu SMP Tue Oct 1
05:24:09 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | personality/hadoop.sh |
| git revision | trunk / 42fc888 |
| Max. process+thread count | 307 (vs. ulimit of 5500) |
| modules | C: hadoop-hdfs-project/hadoop-hdfs U:
hadoop-hdfs-project/hadoop-hdfs |
| Console output |
https://builds.apache.org/job/hadoop-multibranch/job/PR-1706/1/console |
| versions | git=2.7.4 maven=3.3.9 |
| Powered by | Apache Yetus 0.10.0 http://yetus.apache.org |
This message was automatically generated.
> [SBNN read] access time should be turned off
> --------------------------------------------
>
> Key: HDFS-14959
> URL: https://issues.apache.org/jira/browse/HDFS-14959
> Project: Hadoop HDFS
> Issue Type: Task
> Components: documentation
> Reporter: Wei-Chiu Chuang
> Assignee: Chao Sun
> Priority: Major
>
> Both Uber and Didi shared that access time has to be switched off to avoid
> spiky NameNode RPC process time. If access time is not off entirely,
> getBlockLocations RPCs have to update access time and must access the active
> NameNode. (that's my understanding. haven't checked the code)
> We should record this as a best practice in our doc.
> (If you are on the ASF slack, check out this thread
> https://the-asf.slack.com/archives/CAD7C52Q3/p1572033324008600)
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