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https://issues.apache.org/jira/browse/HBASE-4515?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13119088#comment-13119088
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Hudson commented on HBASE-4515:
-------------------------------
Integrated in HBase-0.92 #37 (See
[https://builds.apache.org/job/HBase-0.92/37/])
HBASE-4515 User.getCurrent() can fail to initialize the current user
garyh :
Files :
* /hbase/branches/0.92/CHANGES.txt
* /hbase/branches/0.92/src/main/java/org/apache/hadoop/hbase/security/User.java
*
/hbase/branches/0.92/src/test/java/org/apache/hadoop/hbase/security/TestUser.java
> User.getCurrent() can fail to initialize the current user
> ---------------------------------------------------------
>
> Key: HBASE-4515
> URL: https://issues.apache.org/jira/browse/HBASE-4515
> Project: HBase
> Issue Type: Bug
> Affects Versions: 0.90.4, 0.92.0, 0.94.0
> Reporter: Jonathan Hsieh
> Assignee: Gary Helmling
> Fix For: 0.92.0, 0.94.0, 0.90.5
>
> Attachments: 0001-HBASE-4515-User.getCurrent-can-cause-NPE.patch,
> HBASE-4515_0.90_final.patch, HBASE-4515_0.92_final.patch,
> HBASE-4515_trunk.patch, HBASE-4515_trunk_final.patch
>
>
> When testing with miniclusters that shutdown and are restarted, sometimes a
> call to User.getCurrent().getName() NPEs when attempting to restart hbase.
> Oddly this happens consistently on particular branches and not on others. I
> don't know or understand why this happens but it has something to do with the
> getCurrentUGI call in o.a.h.h.security.User.HadoopUser sometimes returning
> null and sometimes returning data.
> {code}
> private HadoopUser() {
> try {
> ugi = (UserGroupInformation) callStatic("getCurrentUGI");
> if (ugi == null) {
> LOG.warn("Although successfully retrieved UserGroupInformation"
> + " it was null!");
> }
> } catch (RuntimeException re) {
> {code}
> This patch essentially is a workaround -- it propagates the null so that
> clients can check and avoid the NPE.
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