[HDFS-14098] use fsck tools for EC blockId will throw NullPointerException

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 3.0.0
• Component/s: erasure-coding
• Assignee: Aihua Xu
• Reporter: luoge123
• Created: 26/Nov/18 08:20
• Updated: 04/Mar/19 02:29

Description

 

when EC file have some block missing, use fsck tool for EC blockId whil throw NullPointerException

hdfs fsck -blockId blk_-9223372036800049376 

fsck information is:

Block Id: blk_-9223372036800049376
Block belongs to: /logdata/test.lzo
No. of Expected Replica: 9
No. of live Replica: 5
No. of excess Replica: 0
No. of stale Replica: 0
No. of decommissioned Replica: 0
No. of decommissioning Replica: 0
No. of corrupted Replica: 0
null

namenode will throw NullPointerException:

2018-11-26 15:59:35,107 WARN org.apache.hadoop.hdfs.server.namenode.NameNode: Fsck on blockId 'blk_-9223372036800049376
java.lang.NullPointerException
at org.apache.hadoop.hdfs.server.namenode.NamenodeFsck.blockIdCK(NamenodeFsck.java:270)
at org.apache.hadoop.hdfs.server.namenode.NamenodeFsck.fsck(NamenodeFsck.java:313)
at org.apache.hadoop.hdfs.server.namenode.FsckServlet$1.run(FsckServlet.java:67)