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https://issues.apache.org/jira/browse/HIVE-25912?focusedWorklogId=755063&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-755063
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ASF GitHub Bot logged work on HIVE-25912:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 11/Apr/22 00:17
Start Date: 11/Apr/22 00:17
Worklog Time Spent: 10m
Work Description: github-actions[bot] commented on PR #2987:
URL: https://github.com/apache/hive/pull/2987#issuecomment-1094421006
This pull request has been automatically marked as stale because it has not
had recent activity. It will be closed if no further activity occurs.
Feel free to reach out on the [email protected] list if the patch is in
need of reviews.
Issue Time Tracking
-------------------
Worklog Id: (was: 755063)
Remaining Estimate: 78h 50m (was: 79h)
Time Spent: 17h 10m (was: 17h)
> Drop external table at root of s3 bucket throws NPE
> ---------------------------------------------------
>
> Key: HIVE-25912
> URL: https://issues.apache.org/jira/browse/HIVE-25912
> Project: Hive
> Issue Type: Bug
> Components: Metastore
> Affects Versions: 3.1.2, 4.0.0
> Environment: Hive version: 3.1.2
> Reporter: Fachuan Bai
> Assignee: Fachuan Bai
> Priority: Major
> Labels: metastore, pull-request-available
> Fix For: 4.0.0, 4.0.0-alpha-1
>
> Attachments: hive bugs.png, hive-bug-01.png
>
> Original Estimate: 96h
> Time Spent: 17h 10m
> Remaining Estimate: 78h 50m
>
> *new update:*
> I test the master branch, have the same problem.
> ----------
> ENV:
> Hive 3.1.2
> HDFS:3.3.1
> enable OpenLDAP and Ranger .
>
> I create the external hive table using this command:
>
> {code:java}
> CREATE EXTERNAL TABLE `fcbai`(
> `inv_item_sk` int,
> `inv_warehouse_sk` int,
> `inv_quantity_on_hand` int)
> PARTITIONED BY (
> `inv_date_sk` int) STORED AS ORC
> LOCATION
> 'hdfs://emr-master-1:8020/';
> {code}
>
> The table was created successfully, but when I drop the table throw the NPE:
>
> {code:java}
> Error: Error while processing statement: FAILED: Execution Error, return code
> 1 from org.apache.hadoop.hive.ql.exec.DDLTask.
> MetaException(message:java.lang.NullPointerException)
> (state=08S01,code=1){code}
>
> The same bug can reproduction on the other object storage file system, such
> as S3 or TOS:
> {code:java}
> CREATE EXTERNAL TABLE `fcbai`(
> `inv_item_sk` int,
> `inv_warehouse_sk` int,
> `inv_quantity_on_hand` int)
> PARTITIONED BY (
> `inv_date_sk` int) STORED AS ORC
> LOCATION
> 's3a://bucketname/'; // 'tos://bucketname/'{code}
>
> I see the source code found:
> common/src/java/org/apache/hadoop/hive/common/FileUtils.java
> {code:java}
> // check if sticky bit is set on the parent dir
> FileStatus parStatus = fs.getFileStatus(path.getParent());
> if (!shims.hasStickyBit(parStatus.getPermission())) {
> // no sticky bit, so write permission on parent dir is sufficient
> // no further checks needed
> return;
> }{code}
>
> because I set the table location to HDFS root path
> (hdfs://emr-master-1:8020/), so the path.getParent() function will be return
> null cause the NPE.
> I think have four solutions to fix the bug:
> # modify the create table function, if the location is root dir return
> create table fail.
> # modify the FileUtils.checkDeletePermission function, check the
> path.getParent(), if it is null, the function return, drop successfully.
> # modify the RangerHiveAuthorizer.checkPrivileges function of the hive
> ranger plugin(in ranger rep), if the location is root dir return create table
> fail.
> # modify the HDFS Path object, if the URI is root dir, path.getParent()
> return not null.
> I recommend the first or second method, any suggestion for me? thx.
>
>
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