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https://issues.apache.org/jira/browse/HBASE-21796?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16780980#comment-16780980
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Hadoop QA commented on HBASE-21796:
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue}  1m 
21s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {color} ||
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue}  0m  
1s{color} | {color:blue} Findbugs executables are not available. {color} |
| {color:green}+1{color} | {color:green} hbaseanti {color} | {color:green}  0m  
0s{color} | {color:green} Patch does not have any anti-patterns. {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 5 new or modified test 
files. {color} |
|| || || || {color:brown} branch-1 Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 
11s{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  1m 
51s{color} | {color:green} branch-1 passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
58s{color} | {color:green} branch-1 passed with JDK v1.8.0_202 {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
58s{color} | {color:green} branch-1 passed with JDK v1.7.0_211 {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  1m 
51s{color} | {color:green} branch-1 passed {color} |
| {color:green}+1{color} | {color:green} shadedjars {color} | {color:green}  2m 
46s{color} | {color:green} branch has no errors when building our shaded 
downstream artifacts. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
48s{color} | {color:green} branch-1 passed with JDK v1.8.0_202 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
57s{color} | {color:green} branch-1 passed with JDK v1.7.0_211 {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 
14s{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  1m 
39s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
54s{color} | {color:green} the patch passed with JDK v1.8.0_202 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  0m 
54s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
59s{color} | {color:green} the patch passed with JDK v1.7.0_211 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  0m 
59s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
31s{color} | {color:green} hbase-client: The patch generated 0 new + 143 
unchanged - 1 fixed = 143 total (was 144) {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  1m 
19s{color} | {color:green} The patch passed checkstyle in hbase-server {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} shadedjars {color} | {color:green}  2m 
45s{color} | {color:green} patch has no errors when building our shaded 
downstream artifacts. {color} |
| {color:green}+1{color} | {color:green} hadoopcheck {color} | {color:green}  
1m 41s{color} | {color:green} Patch does not cause any errors with Hadoop 
2.7.4. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
46s{color} | {color:green} the patch passed with JDK v1.8.0_202 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
57s{color} | {color:green} the patch passed with JDK v1.7.0_211 {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  2m 
24s{color} | {color:green} hbase-client in the patch passed. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green}120m 
13s{color} | {color:green} hbase-server in the patch passed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 
36s{color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black}147m 22s{color} | 
{color:black} {color} |
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|| Subsystem || Report/Notes ||
| Docker | Client=17.05.0-ce Server=17.05.0-ce Image:yetus/hbase:61288f8 |
| JIRA Issue | HBASE-21796 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12960656/HBASE-21796.005.branch-1.patch
 |
| Optional Tests |  dupname  asflicense  javac  javadoc  unit  findbugs  
shadedjars  hadoopcheck  hbaseanti  checkstyle  compile  |
| uname | Linux 3b5a5eedd09a 4.4.0-139-generic #165~14.04.1-Ubuntu SMP Wed Oct 
31 10:55:11 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | 
/home/jenkins/jenkins-slave/workspace/PreCommit-HBASE-Build/component/dev-support/hbase-personality.sh
 |
| git revision | branch-1 / b5c50b5 |
| maven | version: Apache Maven 3.0.5 |
| Default Java | 1.7.0_211 |
| Multi-JDK versions |  /usr/lib/jvm/java-8-openjdk-amd64:1.8.0_202 
/usr/lib/jvm/java-7-openjdk-amd64:1.7.0_211 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-HBASE-Build/16186/testReport/ |
| Max. process+thread count | 3991 (vs. ulimit of 10000) |
| modules | C: hbase-client hbase-server U: . |
| Console output | 
https://builds.apache.org/job/PreCommit-HBASE-Build/16186/console |
| Powered by | Apache Yetus 0.8.0   http://yetus.apache.org |


This message was automatically generated.



> RecoverableZooKeeper indefinitely retries a client stuck in AUTH_FAILED
> -----------------------------------------------------------------------
>
>                 Key: HBASE-21796
>                 URL: https://issues.apache.org/jira/browse/HBASE-21796
>             Project: HBase
>          Issue Type: Bug
>          Components: Zookeeper
>            Reporter: Josh Elser
>            Assignee: Josh Elser
>            Priority: Major
>             Fix For: 1.5.1
>
>         Attachments: HBASE-21796.001.branch-1.patch, 
> HBASE-21796.002.branch-1.patch, HBASE-21796.003.branch-1.patch, 
> HBASE-21796.004.branch-1.patch, HBASE-21796.005.branch-1.patch
>
>
> We've observed the following situation inside of a RegionServer which leaves 
> an HConnection in a broken state as a result of the ZooKeeper client having 
> received an AUTH_FAILED case in the Phoenix secondary indexing code-path. The 
> result was that the HConnection used to write the secondary index updates 
> failed every time the client re-attempted the write but we had no outward 
> signs from the HConnection that there was a problem with that HConnection 
> instance.
> ZooKeeper programmer docs tell us that if a ZooKeeper instance goes to the 
> {{AUTH_FAILED}} state that we must open a new ZooKeeper instance: 
> [https://zookeeper.apache.org/doc/r3.4.13/zookeeperProgrammers.html#ch_zkSessions]
> When a new HConnection (or one without a cached meta location) tries to 
> access ZooKeeper to find meta's location or the cluster ID, this spin 
> indefinitely because we can never access ZooKeeper because our client is 
> broken from the AUTH_FAILED. For the Phoenix use-case (where we're trying to 
> use this HConnection within the RS), this breaks things pretty fast.
> The circumstances that caused us to observe this are not an HBase (or Phoenix 
> or ZooKeeper) problem. The AUTH_FAILED exception we see is a result of 
> networking issues on a user's system. Despite this, we can make our handling 
> of this situation better.
> We already have logic inside of RecoverableZooKeeper to re-create a ZooKeeper 
> object when we need one (e.g. session expired/closed). We can extend this 
> same logic to also re-create the ZK client object if we observe an 
> AUTH_FAILED state.



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