[HDFS-13225] StripeReader#checkMissingBlocks() 's IOException info is incomplete

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.1.0, 3.2.0
• Fix Version/s: 3.1.0, 3.0.3
• Component/s: erasure-coding, hdfs-client
• Target Version/s: 3.1.0, 3.2.0
• Assignee: lufei
• Reporter: lufei
• Created: 05/Mar/18 06:54
• Updated: 05/Apr/18 20:07
• Resolved: 07/Mar/18 22:24

Description

When the file's ErasureCodingPolicy is XOR-3-2-128k, then stop 3 datanodes which were used by the block. With the following op(read the file), the exception message was incomplete, because of the class of LocatedBlocks's info was not displayed complete.

 

hadoop@EC102:/home/lufei> hadoop fs -get /lufei/fsimage_0000000000268172191_140 test112
get: 3 missing blocks, the stripe is: AlignedStripe(Offset=0, length=131072, fetchedChunksNum=0, missingChunksNum=3); locatedBlocks is: LocatedBlocks{
hadoop@EC102:/home/lufei>