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https://issues.apache.org/jira/browse/HDFS-13668?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16576276#comment-16576276
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genericqa commented on HDFS-13668:
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| (/) *{color:green}+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: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 1 new or modified test 
files. {color} |
|| || || || {color:brown} trunk Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 26m 
 3s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
56s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
13s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  1m  
0s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green} 
12m 24s{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 
48s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
46s{color} | {color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  0m 
58s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
51s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  0m 
51s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
 9s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 
57s{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 59s{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 
56s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
44s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 76m 
19s{color} | {color:green} hadoop-hdfs in the patch passed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 
27s{color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black}138m  4s{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:ba1ab08 |
| JIRA Issue | HDFS-13668 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12935121/HDFS-13668-trunk.003.patch
 |
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  
unit  shadedclient  findbugs  checkstyle  |
| uname | Linux bf731e17e4f3 3.13.0-139-generic #188-Ubuntu SMP Tue Jan 9 
14:43:09 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/patchprocess/precommit/personality/provided.sh |
| git revision | trunk / 0a71bf1 |
| maven | version: Apache Maven 3.3.9 |
| Default Java | 1.8.0_171 |
| findbugs | v3.1.0-RC1 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-HDFS-Build/24747/testReport/ |
| Max. process+thread count | 3275 (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/24747/console |
| Powered by | Apache Yetus 0.8.0-SNAPSHOT   http://yetus.apache.org |


This message was automatically generated.



> FSPermissionChecker may throws AIOOE when check if inode has permission
> -----------------------------------------------------------------------
>
>                 Key: HDFS-13668
>                 URL: https://issues.apache.org/jira/browse/HDFS-13668
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: namenode
>    Affects Versions: 3.1.0, 2.10.0, 2.7.7
>            Reporter: He Xiaoqiao
>            Assignee: He Xiaoqiao
>            Priority: Major
>         Attachments: HDFS-13668-trunk.001.patch, HDFS-13668-trunk.002.patch, 
> HDFS-13668-trunk.003.patch
>
>
> {{FSPermissionChecker}} may throw {{ArrayIndexOutOfBoundsException:0}} when 
> check if has permission, since it only check inode's {{aclFeature}} if null 
> or not but not check it's entry size. When it meets {{aclFeature}} not null 
> but it's entry size equal to 0, it will throw AIOOE.
> {code:java}
> private boolean hasPermission(INodeAttributes inode, FsAction access) {
>   ......
>   final AclFeature aclFeature = inode.getAclFeature();
>   if (aclFeature != null) {
>     // It's possible that the inode has a default ACL but no access ACL.
>     int firstEntry = aclFeature.getEntryAt(0);
>     if (AclEntryStatusFormat.getScope(firstEntry) == AclEntryScope.ACCESS) {
>       return hasAclPermission(inode, access, mode, aclFeature);
>     }
>   }
>   ......
> }
> {code}
> Actually if use default {{INodeAttributeProvider}}, it can ensure that when 
> {{inode}}'s aclFeature is not null and it's entry size also will be greater 
> than 0, but {{INodeAttributeProvider}} is a public interface, we could not 
> ensure external implement (e.g. Apache Sentry, Apache Ranger) also has the 
> similar constraint. 



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