Wei-Chiu Chuang created HBASE-20859:
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Summary: Backup and incremental load could fail in secure clusters
Key: HBASE-20859
URL: https://issues.apache.org/jira/browse/HBASE-20859
Project: HBase
Issue Type: Bug
Components: backup&restore
Affects Versions: 2.0.0
Reporter: Wei-Chiu Chuang
Assignee: Wei-Chiu Chuang
HBase Backup and incremental load uses
HConstants.DEFAULT_TEMPORARY_HDFS_DIRECTORY for temporary path.
HConstants.DEFAULT_TEMPORARY_HDFS_DIRECTORY incorrectly uses the Java runtime
user name to generate a temporary path on HDFS. This can be a wrong assumption
in a secure cluster where Kerberos principal name is different from the system
user name.
{code:java}
public static final String DEFAULT_TEMPORARY_HDFS_DIRECTORY = "/user/"
+ System.getProperty("user.name") + "/hbase-staging";
{code}
This constant variable is used in BackupUtils.java and HFileOutputFormat2.java
In such cases, you will not be able to write files to the temporary location on
HDFS due to permission error, and therefore operations such as backup will fail.
This bug is similar in nature to HDFS-12485.
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