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https://issues.apache.org/jira/browse/YARN-9224?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16754026#comment-16754026
]
Hadoop QA commented on YARN-9224:
---------------------------------
| (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
15s{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:red}-1{color} | {color:red} test4tests {color} | {color:red} 0m
0s{color} | {color:red} The patch doesn't appear to include any new or modified
tests. Please justify why no new tests are needed for this patch. Also please
list what manual steps were performed to verify this patch. {color} |
|| || || || {color:brown} trunk Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 19m
8s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m
38s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
30s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m
39s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green}
12m 3s{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
18s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
39s{color} | {color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m
37s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m
33s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m
33s{color} | {color:green} the patch passed {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}
0m 21s{color} | {color:orange}
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common: The patch generated 1 new +
4 unchanged - 0 fixed = 5 total (was 4) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m
36s{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}
11m 42s{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} 1m
25s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
38s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 3m
22s{color} | {color:green} hadoop-yarn-common in the patch passed. {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} 54m 47s{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:8f97d6f |
| JIRA Issue | YARN-9224 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12956574/YARN-9224.001.patch |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall
mvnsite unit shadedclient findbugs checkstyle |
| uname | Linux 7cb240e1abe9 4.4.0-139-generic #165-Ubuntu SMP Wed Oct 24
10:58:50 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/patchprocess/precommit/personality/provided.sh |
| git revision | trunk / 8326450 |
| maven | version: Apache Maven 3.3.9 |
| Default Java | 1.8.0_191 |
| findbugs | v3.1.0-RC1 |
| checkstyle |
https://builds.apache.org/job/PreCommit-YARN-Build/23207/artifact/out/diff-checkstyle-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-common.txt
|
| Test Results |
https://builds.apache.org/job/PreCommit-YARN-Build/23207/testReport/ |
| Max. process+thread count | 423 (vs. ulimit of 10000) |
| modules | C: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common U:
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common |
| Console output |
https://builds.apache.org/job/PreCommit-YARN-Build/23207/console |
| Powered by | Apache Yetus 0.8.0 http://yetus.apache.org |
This message was automatically generated.
> TimelineDelegationTokenIdentifier.Renewer contacts KDC for every renew/cancel
> token operation
> ---------------------------------------------------------------------------------------------
>
> Key: YARN-9224
> URL: https://issues.apache.org/jira/browse/YARN-9224
> Project: Hadoop YARN
> Issue Type: Bug
> Affects Versions: 2.6.0, 2.7.3
> Reporter: Tarun Parimi
> Priority: Major
> Attachments: YARN-9224.001.patch
>
>
> In a production cluster, we have observed the active RM principal making
> excessive requests to the KDC server. Being a service principal, this
> shouldn't be the case normally.
> On capturing tcpdump for the connections between RM and KDC, we saw that
> these excessive requests were for the SPNEGO service
> HTTP/ats-host.example.com .
> The requests were also matching in frequency with the below log entry in RM.
> {code:java}
> 2019-01-09T03:41:56.048-0500 INFO
> org.apache.hadoop.yarn.client.api.impl.TimelineClientImpl: Timeline service
> address: http://ats-host.example.com:8188/ws/v1/timeline/
> {code}
> On looking at the code in TimelineDelegationTokenIdentifier.java, it seems
> this kdc request for SPNEGO is done as we are creating a new timeline client
> instance every time.
> {code:java}
> @SuppressWarnings("unchecked")
> @Override
> public long renew(Token<?> token, Configuration conf) throws IOException,
> InterruptedException {
> TimelineClient client = TimelineClient.createTimelineClient();
> try {
> client.init(conf);
> client.start();
> return client.renewDelegationToken(
> (Token<TimelineDelegationTokenIdentifier>) token);
> } catch (YarnException e) {
> throw new IOException(e);
> } finally {
> client.stop();
> }
> }
> @SuppressWarnings("unchecked")
> @Override
> public void cancel(Token<?> token, Configuration conf) throws IOException,
> InterruptedException {
> TimelineClient client = TimelineClient.createTimelineClient();
> try {
> client.init(conf);
> client.start();
> client.cancelDelegationToken(
> (Token<TimelineDelegationTokenIdentifier>) token);
> } catch (YarnException e) {
> throw new IOException(e);
> } finally {
> client.stop();
> }
> }{code}
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