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ASF GitHub Bot logged work on HIVE-25912: ----------------------------------------- Author: ASF GitHub Bot Created on: 09/Feb/22 10:16 Start Date: 09/Feb/22 10:16 Worklog Time Spent: 10m Work Description: zabetak commented on pull request #2987: URL: https://github.com/apache/hive/pull/2987#issuecomment-1033594076 @baifachuan Have you checked if the problem affects also the master branch? -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: gitbox-unsubscr...@hive.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org Issue Time Tracking ------------------- Worklog Id: (was: 723548) Remaining Estimate: 81h 10m (was: 81h 20m) Time Spent: 14h 50m (was: 14h 40m) > 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 > Environment: Hive version: 3.1.2 > Reporter: Fachuan Bai > Assignee: Fachuan Bai > Priority: Major > Labels: metastore, pull-request-available > Attachments: hive bugs.png, hive-bug-01.png > > Original Estimate: 96h > Time Spent: 14h 50m > Remaining Estimate: 81h 10m > > 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. > > -- This message was sent by Atlassian Jira (v8.20.1#820001)