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https://issues.apache.org/jira/browse/HADOOP-14044?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15847701#comment-15847701
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Hadoop QA commented on HADOOP-14044:
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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
13s{color} | {color:blue} Docker mode activated. {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:green}+1{color} | {color:green} mvninstall {color} | {color:green} 12m
48s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 13m
25s{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} 1m
3s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m
19s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 1m
25s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
48s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m
36s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} compile {color} | {color:red} 3m
8s{color} | {color:red} root in the patch failed. {color} |
| {color:red}-1{color} | {color:red} javac {color} | {color:red} 3m 8s{color}
| {color:red} root in the patch failed. {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
23s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m
52s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m
11s{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} findbugs {color} | {color:green} 1m
39s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
42s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 8m
52s{color} | {color:green} hadoop-common in the patch passed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m
22s{color} | {color:green} The patch does not generate ASF License warnings.
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| {color:black}{color} | {color:black} {color} | {color:black} 48m 47s{color} |
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|| Subsystem || Report/Notes ||
| Docker | Image:yetus/hadoop:a9ad5d6 |
| JIRA Issue | HADOOP-14044 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12850319/HADOOP-14044-001.patch
|
| Optional Tests | asflicense compile javac javadoc mvninstall mvnsite
unit findbugs checkstyle |
| uname | Linux 038987cc59ba 3.13.0-103-generic #150-Ubuntu SMP Thu Nov 24
10:34:17 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/hadoop/patchprocess/precommit/personality/provided.sh
|
| git revision | trunk / 258991d |
| Default Java | 1.8.0_121 |
| findbugs | v3.0.0 |
| compile |
https://builds.apache.org/job/PreCommit-HADOOP-Build/11549/artifact/patchprocess/patch-compile-root.txt
|
| javac |
https://builds.apache.org/job/PreCommit-HADOOP-Build/11549/artifact/patchprocess/patch-compile-root.txt
|
| Test Results |
https://builds.apache.org/job/PreCommit-HADOOP-Build/11549/testReport/ |
| modules | C: hadoop-common-project/hadoop-common U:
hadoop-common-project/hadoop-common |
| Console output |
https://builds.apache.org/job/PreCommit-HADOOP-Build/11549/console |
| Powered by | Apache Yetus 0.5.0-SNAPSHOT http://yetus.apache.org |
This message was automatically generated.
> Synchronization issue in delegation token cancel functionality
> --------------------------------------------------------------
>
> Key: HADOOP-14044
> URL: https://issues.apache.org/jira/browse/HADOOP-14044
> Project: Hadoop Common
> Issue Type: Bug
> Reporter: Hrishikesh Gadre
> Assignee: Hrishikesh Gadre
> Attachments: dt_fail.log, dt_success.log, HADOOP-14044-001.patch
>
>
> We are using Hadoop delegation token authentication functionality in Apache
> Solr. As part of the integration testing, I found following issue with the
> delegation token cancelation functionality.
> Consider a setup with 2 Solr servers (S1 and S2) which are configured to use
> delegation token functionality backed by Zookeeper. Now invoke following
> steps,
> [Step 1] Send a request to S1 to create a delegation token.
> (Delegation token DT is created successfully)
> [Step 2] Send a request to cancel DT to S2
> (DT is canceled successfully. client receives HTTP 200 response)
> [Step 3] Send a request to cancel DT to S2 again
> (DT cancelation fails. client receives HTTP 404 response)
> [Step 4] Send a request to cancel DT to S1
> At this point we get two different responses.
> - DT cancelation fails. client receives HTTP 404 response
> - DT cancelation succeeds. client receives HTTP 200 response
> Also as per the current implementation, each server maintains an in_memory
> cache of current tokens which is updated using the ZK watch mechanism. e.g.
> the ZK watch on S1 will ensure that the in_memory cache is synchronized after
> step 2.
> After investigation, I found the root cause for this behavior is due to the
> race condition between step 4 and the firing of ZK watch on S1. Whenever the
> watch fires before the step 4 - we get HTTP 404 response (as expected). When
> that is not the case - we get HTTP 200 response along with following ERROR
> message in the log,
> {noformat}
> Attempted to remove a non-existing znode /ZKDTSMTokensRoot/DT_XYZ
> {noformat}
> From client perspective, the server *should* return HTTP 404 error when the
> cancel request is sent out for an invalid token.
> Ref: Here is the relevant Solr unit test for reference,
> https://github.com/apache/lucene-solr/blob/746786636404cdb8ce505ed0ed02b8d9144ab6c4/solr/core/src/test/org/apache/solr/cloud/TestSolrCloudWithDelegationTokens.java#L285
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